diff --git a/package-lock.json b/package-lock.json
index 0aa3f5088..95f0b5723 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -144,81 +144,84 @@
       }
     },
     "@0x/base-contract": {
-      "version": "6.0.2",
-      "resolved": "https://registry.npmjs.org/@0x/base-contract/-/base-contract-6.0.2.tgz",
-      "integrity": "sha512-UR6A0KTOqkOLjzaHRy0++WDaWl3Xn6WuaIoAPk9/LD7vnKTCK+NzohCh3pBRbgkkEylng2000jldbDMZkM5FXA==",
-      "requires": {
-        "@0x/assert": "^3.0.2",
-        "@0x/json-schemas": "^5.0.2",
-        "@0x/utils": "^5.1.1",
-        "@0x/web3-wrapper": "^7.0.2",
+      "version": "6.2.7",
+      "resolved": "https://registry.npmjs.org/@0x/base-contract/-/base-contract-6.2.7.tgz",
+      "integrity": "sha512-R1EbFRyDC6g/0y9oMeUl/nwb9XGMzINR+G1aN1dRqFwJkyGiFJilY1rOkzvvjgdNcr6sdRDs7lxMHKeMloHW4w==",
+      "requires": {
+        "@0x/assert": "^3.0.13",
+        "@0x/json-schemas": "^5.2.3",
+        "@0x/utils": "^5.6.3",
+        "@0x/web3-wrapper": "^7.2.4",
+        "@types/node": "12.12.54",
         "ethereumjs-account": "^3.0.0",
         "ethereumjs-blockstream": "^7.0.0",
         "ethereumjs-util": "^5.1.1",
-        "ethereumjs-vm": "^4.0.0",
+        "ethereumjs-vm": "^4.2.0",
         "ethers": "~4.0.4",
         "js-sha3": "^0.7.0",
         "uuid": "^3.3.2"
       },
       "dependencies": {
         "@0x/assert": {
-          "version": "3.0.2",
-          "resolved": "https://registry.npmjs.org/@0x/assert/-/assert-3.0.2.tgz",
-          "integrity": "sha512-kYRCP/eOoGX3S0zTXskIcy8jA0zxOm20BCDK7EImAQ8HvdmfZr8R6dqUm5UEBLd/JJ6jywR97Y+yCUiteIGg0g==",
-          "requires": {
-            "@0x/json-schemas": "^5.0.2",
-            "@0x/typescript-typings": "^5.0.1",
-            "@0x/utils": "^5.1.1",
+          "version": "3.0.13",
+          "resolved": "https://registry.npmjs.org/@0x/assert/-/assert-3.0.13.tgz",
+          "integrity": "sha512-CyfEx4ZrCHcq7Y73GGOIg9twx5Ogr3PRGwuRgObXnaHLlIr8FZ5ZjsgImd1vWsVSMQu3tC5kRC9V1IDcwB7x2Q==",
+          "requires": {
+            "@0x/json-schemas": "^5.2.3",
+            "@0x/typescript-typings": "^5.1.5",
+            "@0x/utils": "^5.6.3",
+            "@types/node": "12.12.54",
             "lodash": "^4.17.11",
             "valid-url": "^1.0.9"
           }
         },
         "@0x/json-schemas": {
-          "version": "5.0.2",
-          "resolved": "https://registry.npmjs.org/@0x/json-schemas/-/json-schemas-5.0.2.tgz",
-          "integrity": "sha512-2mwC42aWx6tvOCh58pRyYCSrmdajHdmfbDSCsII/8EOWRI6gYYenRMl/edVMnqKw7FH0QLsfWdx5GeP+jNoxDA==",
+          "version": "5.2.3",
+          "resolved": "https://registry.npmjs.org/@0x/json-schemas/-/json-schemas-5.2.3.tgz",
+          "integrity": "sha512-YOHabFNdb4jRgzOqKBAn8d2wnBtwOpg+avrhZgJRpOYyNqfNiL5niLe+Q6y4VNFHa2RAoC030jn/j5ms43+Anw==",
           "requires": {
-            "@0x/typescript-typings": "^5.0.1",
-            "@types/node": "*",
+            "@0x/typescript-typings": "^5.1.5",
+            "@types/node": "12.12.54",
             "jsonschema": "^1.2.0",
             "lodash.values": "^4.3.0"
           }
         },
         "@0x/types": {
-          "version": "3.1.1",
-          "resolved": "https://registry.npmjs.org/@0x/types/-/types-3.1.1.tgz",
-          "integrity": "sha512-+TQmzH+chWeDWpc+Lce3/q4X2UEHFfAwZcWrV7tEQ5EVAJvph7gpKawRW2XRsmHeQDSHBmiiBdSZ8Rc/OAjvlQ==",
+          "version": "3.2.4",
+          "resolved": "https://registry.npmjs.org/@0x/types/-/types-3.2.4.tgz",
+          "integrity": "sha512-AYmq+Dd93ftuQZ/+gjuy5QgGPi9959c9a8Fb3Y07fYbtrrcPSXUM7/FxtRRSHYBqj2F4CurPXY52ab6QkNZn5A==",
           "requires": {
-            "@types/node": "*",
+            "@types/node": "12.12.54",
             "bignumber.js": "~9.0.0",
-            "ethereum-types": "^3.0.0"
+            "ethereum-types": "^3.3.3"
           }
         },
         "@0x/typescript-typings": {
-          "version": "5.0.1",
-          "resolved": "https://registry.npmjs.org/@0x/typescript-typings/-/typescript-typings-5.0.1.tgz",
-          "integrity": "sha512-zSA39URHkFnL16WD30VMa8wL8va0Khpx9APHffdPWpBOr9SUPdADtae5HO4iNCYvSgo3mrtPlKID2nIqREIHOQ==",
+          "version": "5.1.5",
+          "resolved": "https://registry.npmjs.org/@0x/typescript-typings/-/typescript-typings-5.1.5.tgz",
+          "integrity": "sha512-I55QfQNJPo8tG6j/PsTTgbeaIMbkGs5vdwVVfFkxSE8rXIEh4Qsra3JXke/7EpFZvhoUFngX4qdQyK2kI4V3sw==",
           "requires": {
             "@types/bn.js": "^4.11.0",
+            "@types/node": "12.12.54",
             "@types/react": "*",
             "bignumber.js": "~9.0.0",
-            "ethereum-types": "^3.0.0",
+            "ethereum-types": "^3.3.3",
             "popper.js": "1.14.3"
           }
         },
         "@0x/utils": {
-          "version": "5.1.1",
-          "resolved": "https://registry.npmjs.org/@0x/utils/-/utils-5.1.1.tgz",
-          "integrity": "sha512-DRNKtAqZR0vFA1XdUhBwaIz2qEjWS1xqdvzQl/Dn8OLJH+1sxb+1UmtG6fOlbu7pTLbF+CWoaYf2+pvQfcF//g==",
+          "version": "5.6.3",
+          "resolved": "https://registry.npmjs.org/@0x/utils/-/utils-5.6.3.tgz",
+          "integrity": "sha512-r7ixvMNIjRcvar6AqfSqj5Y3H5MriBfslsshiKSB6SxdnradHpZwpH4xdHbEq0HdkD5/xFRadfGhok0KbPRqvQ==",
           "requires": {
-            "@0x/types": "^3.1.1",
-            "@0x/typescript-typings": "^5.0.1",
-            "@types/node": "*",
+            "@0x/types": "^3.2.4",
+            "@0x/typescript-typings": "^5.1.5",
+            "@types/node": "12.12.54",
             "abortcontroller-polyfill": "^1.1.9",
             "bignumber.js": "~9.0.0",
             "chalk": "^2.3.0",
             "detect-node": "2.0.3",
-            "ethereum-types": "^3.0.0",
+            "ethereum-types": "^3.3.3",
             "ethereumjs-util": "^5.1.1",
             "ethers": "~4.0.4",
             "isomorphic-fetch": "2.2.1",
@@ -227,20 +230,26 @@
           }
         },
         "@0x/web3-wrapper": {
-          "version": "7.0.2",
-          "resolved": "https://registry.npmjs.org/@0x/web3-wrapper/-/web3-wrapper-7.0.2.tgz",
-          "integrity": "sha512-kSmrg0E0ZmuNKTKmanxHlRUO5dom8Wr2eDmgG+NZcuWY3EJKIkuxFsz6KRUfoYbVOVT22ZQZazzZIGwoz/LObg==",
-          "requires": {
-            "@0x/assert": "^3.0.2",
-            "@0x/json-schemas": "^5.0.2",
-            "@0x/typescript-typings": "^5.0.1",
-            "@0x/utils": "^5.1.1",
-            "ethereum-types": "^3.0.0",
+          "version": "7.2.4",
+          "resolved": "https://registry.npmjs.org/@0x/web3-wrapper/-/web3-wrapper-7.2.4.tgz",
+          "integrity": "sha512-/Rtwd/uVJBXCW40Z+Bp/+wEv4AQCGU+8K7uqYh+dzU3aRsKPpar9pTBEO2wbujTeYQRHfq1SB1zVdAJWrMSBdg==",
+          "requires": {
+            "@0x/assert": "^3.0.13",
+            "@0x/json-schemas": "^5.2.3",
+            "@0x/typescript-typings": "^5.1.5",
+            "@0x/utils": "^5.6.3",
+            "@types/node": "12.12.54",
+            "ethereum-types": "^3.3.3",
             "ethereumjs-util": "^5.1.1",
             "ethers": "~4.0.4",
             "lodash": "^4.17.11"
           }
         },
+        "@types/node": {
+          "version": "12.12.54",
+          "resolved": "https://registry.npmjs.org/@types/node/-/node-12.12.54.tgz",
+          "integrity": "sha512-ge4xZ3vSBornVYlDnk7yZ0gK6ChHf/CHB7Gl1I0Jhah8DDnEQqBzgohYG4FX4p81TNirSETOiSyn+y1r9/IR6w=="
+        },
         "ansi-styles": {
           "version": "3.2.1",
           "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
@@ -249,14 +258,6 @@
             "color-convert": "^1.9.0"
           }
         },
-        "bindings": {
-          "version": "1.5.0",
-          "resolved": "https://registry.npmjs.org/bindings/-/bindings-1.5.0.tgz",
-          "integrity": "sha512-p2q/t/mhvuOj/UeLlV6566GD/guowlr0hHxClI0W9m7MWYkL1F0hLo+0Aexs9HSPCtR1SXQ0TD3MMKrXZajbiQ==",
-          "requires": {
-            "file-uri-to-path": "1.0.0"
-          }
-        },
         "chalk": {
           "version": "2.4.2",
           "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
@@ -268,9 +269,9 @@
           }
         },
         "elliptic": {
-          "version": "6.5.2",
-          "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.2.tgz",
-          "integrity": "sha512-f4x70okzZbIQl/NSRLkI/+tteV/9WqL98zx+SQ69KbXxmVrmjwsNUPn/gYJJ0sHvEak24cZgHIPegRePAtA/xw==",
+          "version": "6.5.3",
+          "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.3.tgz",
+          "integrity": "sha512-IMqzv5wNQf+E6aHeIqATs0tOLeOTwj1QKbRcS3jBbYkl5oLAserA8yJTT7/VyHUYG91PRmPyeQDObKLPpeS4dw==",
           "requires": {
             "bn.js": "^4.4.0",
             "brorand": "^1.0.1",
@@ -282,11 +283,11 @@
           }
         },
         "ethereum-types": {
-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/ethereum-types/-/ethereum-types-3.0.0.tgz",
-          "integrity": "sha512-jRSsiua+e4/89r7M3mqPcP1M2f3TgXxpVmWysy+7pEg2H4lwEQRWarbYfIpWp81NtxrcMQv5bMK+yR1MN4sDpg==",
+          "version": "3.3.3",
+          "resolved": "https://registry.npmjs.org/ethereum-types/-/ethereum-types-3.3.3.tgz",
+          "integrity": "sha512-FWW7ajHqgoqVHhPMX4sY2ycARpPFL8p/64rpToo8awNrJY7rBDnSC8esQYlAPeaiawf9fTM/xAgEm9VKY7J5kg==",
           "requires": {
-            "@types/node": "*",
+            "@types/node": "12.12.54",
             "bignumber.js": "~9.0.0"
           }
         },
@@ -309,17 +310,17 @@
               }
             },
             "ethereumjs-util": {
-              "version": "6.2.0",
-              "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-6.2.0.tgz",
-              "integrity": "sha512-vb0XN9J2QGdZGIEKG2vXM+kUdEivUfU6Wmi5y0cg+LRhDYKnXIZ/Lz7XjFbHRR9VIKq2lVGLzGBkA++y2nOdOQ==",
+              "version": "6.2.1",
+              "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-6.2.1.tgz",
+              "integrity": "sha512-W2Ktez4L01Vexijrm5EB6w7dg4n/TgpoYU4avuT5T3Vmnw/eCRtiBrJfQYS/DCSvDIOLn2k57GcHdeBcgVxAqw==",
               "requires": {
                 "@types/bn.js": "^4.11.3",
                 "bn.js": "^4.11.0",
                 "create-hash": "^1.1.2",
+                "elliptic": "^6.5.2",
+                "ethereum-cryptography": "^0.1.3",
                 "ethjs-util": "0.1.6",
-                "keccak": "^2.0.0",
-                "rlp": "^2.2.3",
-                "secp256k1": "^3.0.1"
+                "rlp": "^2.2.3"
               }
             }
           }
@@ -336,11 +337,6 @@
             "merkle-patricia-tree": "^2.1.2"
           }
         },
-        "ethereumjs-common": {
-          "version": "1.5.0",
-          "resolved": "https://registry.npmjs.org/ethereumjs-common/-/ethereumjs-common-1.5.0.tgz",
-          "integrity": "sha512-SZOjgK1356hIY7MRj3/ma5qtfr/4B5BL+G4rP/XSMYr2z1H5el4RX5GReYCKmQmYI/nSBmRnwrZ17IfHuG0viQ=="
-        },
         "ethereumjs-tx": {
           "version": "2.1.2",
           "resolved": "https://registry.npmjs.org/ethereumjs-tx/-/ethereumjs-tx-2.1.2.tgz",
@@ -359,25 +355,25 @@
               }
             },
             "ethereumjs-util": {
-              "version": "6.2.0",
-              "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-6.2.0.tgz",
-              "integrity": "sha512-vb0XN9J2QGdZGIEKG2vXM+kUdEivUfU6Wmi5y0cg+LRhDYKnXIZ/Lz7XjFbHRR9VIKq2lVGLzGBkA++y2nOdOQ==",
+              "version": "6.2.1",
+              "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-6.2.1.tgz",
+              "integrity": "sha512-W2Ktez4L01Vexijrm5EB6w7dg4n/TgpoYU4avuT5T3Vmnw/eCRtiBrJfQYS/DCSvDIOLn2k57GcHdeBcgVxAqw==",
               "requires": {
                 "@types/bn.js": "^4.11.3",
                 "bn.js": "^4.11.0",
                 "create-hash": "^1.1.2",
+                "elliptic": "^6.5.2",
+                "ethereum-cryptography": "^0.1.3",
                 "ethjs-util": "0.1.6",
-                "keccak": "^2.0.0",
-                "rlp": "^2.2.3",
-                "secp256k1": "^3.0.1"
+                "rlp": "^2.2.3"
               }
             }
           }
         },
         "ethereumjs-vm": {
-          "version": "4.1.2",
-          "resolved": "https://registry.npmjs.org/ethereumjs-vm/-/ethereumjs-vm-4.1.2.tgz",
-          "integrity": "sha512-Zxz/i0u6+74kZ/0UEAbCd2WCSTuS0jPM9LnM9TUGXDbffrkULb1tIBcgHWqYsARGCQJGMDZj5FKDtUJ04Heowg==",
+          "version": "4.2.0",
+          "resolved": "https://registry.npmjs.org/ethereumjs-vm/-/ethereumjs-vm-4.2.0.tgz",
+          "integrity": "sha512-X6qqZbsY33p5FTuZqCnQ4+lo957iUJMM6Mpa6bL4UW0dxM6WmDSHuI4j/zOp1E2TDKImBGCJA9QPfc08PaNubA==",
           "requires": {
             "async": "^2.1.2",
             "async-eventemitter": "^0.2.2",
@@ -405,29 +401,29 @@
               }
             },
             "ethereumjs-util": {
-              "version": "6.2.0",
-              "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-6.2.0.tgz",
-              "integrity": "sha512-vb0XN9J2QGdZGIEKG2vXM+kUdEivUfU6Wmi5y0cg+LRhDYKnXIZ/Lz7XjFbHRR9VIKq2lVGLzGBkA++y2nOdOQ==",
+              "version": "6.2.1",
+              "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-6.2.1.tgz",
+              "integrity": "sha512-W2Ktez4L01Vexijrm5EB6w7dg4n/TgpoYU4avuT5T3Vmnw/eCRtiBrJfQYS/DCSvDIOLn2k57GcHdeBcgVxAqw==",
               "requires": {
                 "@types/bn.js": "^4.11.3",
                 "bn.js": "^4.11.0",
                 "create-hash": "^1.1.2",
+                "elliptic": "^6.5.2",
+                "ethereum-cryptography": "^0.1.3",
                 "ethjs-util": "0.1.6",
-                "keccak": "^2.0.0",
-                "rlp": "^2.2.3",
-                "secp256k1": "^3.0.1"
+                "rlp": "^2.2.3"
               }
             }
           }
         },
         "ethers": {
-          "version": "4.0.47",
-          "resolved": "https://registry.npmjs.org/ethers/-/ethers-4.0.47.tgz",
-          "integrity": "sha512-hssRYhngV4hiDNeZmVU/k5/E8xmLG8UpcNUzg6mb7lqhgpFPH/t7nuv20RjRrEf0gblzvi2XwR5Te+V3ZFc9pQ==",
+          "version": "4.0.48",
+          "resolved": "https://registry.npmjs.org/ethers/-/ethers-4.0.48.tgz",
+          "integrity": "sha512-sZD5K8H28dOrcidzx9f8KYh8083n5BexIO3+SbE4jK83L85FxtpXZBCQdXb8gkg+7sBqomcLhhkU7UHL+F7I2g==",
           "requires": {
             "aes-js": "3.0.0",
             "bn.js": "^4.4.0",
-            "elliptic": "6.5.2",
+            "elliptic": "6.5.3",
             "hash.js": "1.1.3",
             "js-sha3": "0.5.7",
             "scrypt-js": "2.0.4",
@@ -457,38 +453,10 @@
             "minimalistic-assert": "^1.0.0"
           }
         },
-        "inherits": {
-          "version": "2.0.4",
-          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
-          "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
-        },
-        "keccak": {
-          "version": "2.1.0",
-          "resolved": "https://registry.npmjs.org/keccak/-/keccak-2.1.0.tgz",
-          "integrity": "sha512-m1wbJRTo+gWbctZWay9i26v5fFnYkOn7D5PCxJ3fZUGUEb49dE1Pm4BREUYCt/aoO6di7jeoGmhvqN9Nzylm3Q==",
-          "requires": {
-            "bindings": "^1.5.0",
-            "inherits": "^2.0.4",
-            "nan": "^2.14.0",
-            "safe-buffer": "^5.2.0"
-          },
-          "dependencies": {
-            "safe-buffer": {
-              "version": "5.2.0",
-              "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.0.tgz",
-              "integrity": "sha512-fZEwUGbVl7kouZs1jCdMLdt95hdIv0ZeHg6L7qPeciMZhZ+/gdesW4wgTARkrFWEpspjEATAzUGPG8N2jJiwbg=="
-            }
-          }
-        },
-        "nan": {
-          "version": "2.14.0",
-          "resolved": "https://registry.npmjs.org/nan/-/nan-2.14.0.tgz",
-          "integrity": "sha512-INOFj37C7k3AfaNTtX8RhsTw7qRy7eLET14cROi9+5HAVbbHuIWUHEauBv5qT4Av2tWasiTY1Jw6puUNqRJXQg=="
-        },
         "rlp": {
-          "version": "2.2.4",
-          "resolved": "https://registry.npmjs.org/rlp/-/rlp-2.2.4.tgz",
-          "integrity": "sha512-fdq2yYCWpAQBhwkZv+Z8o/Z4sPmYm1CUq6P7n6lVTOdb949CnqA0sndXal5C1NleSVSZm6q5F3iEbauyVln/iw==",
+          "version": "2.2.6",
+          "resolved": "https://registry.npmjs.org/rlp/-/rlp-2.2.6.tgz",
+          "integrity": "sha512-HAfAmL6SDYNWPUOJNrM500x4Thn4PZsEy5pijPh40U9WfNk0z15hUYzO9xVIMAdIHdFtD8CBDHd75Td1g36Mjg==",
           "requires": {
             "bn.js": "^4.11.1"
           }
@@ -502,94 +470,93 @@
           }
         },
         "uuid": {
-          "version": "3.3.3",
-          "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.3.tgz",
-          "integrity": "sha512-pW0No1RGHgzlpHJO1nsVrHKpOEIxkGg1xB+v0ZmdNH5OAeAwzAVrCnI2/6Mtx+Uys6iaylxa+D3g4j63IKKjSQ=="
+          "version": "3.4.0",
+          "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.4.0.tgz",
+          "integrity": "sha512-HjSDRw6gZE5JMggctHBcjVak08+KEVhSIiDzFnT9S9aegmp85S/bReBVTb4QTFaRNptJ9kuYaNhnbNEOkbKb/A=="
         }
       }
     },
     "@0x/contract-addresses": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/@0x/contract-addresses/-/contract-addresses-4.1.0.tgz",
-      "integrity": "sha512-scx2Gv6//fBj1Gb3AuqiH6s3qTw1mlcUW6YPp1RnjEGtBPH44cc0PvWmyIeOcCAcEZSVGk8glgTR25QrBAPJnw==",
-      "requires": {
-        "lodash": "^4.17.11"
-      }
+      "version": "4.12.0",
+      "resolved": "https://registry.npmjs.org/@0x/contract-addresses/-/contract-addresses-4.12.0.tgz",
+      "integrity": "sha512-0tHRgb03pbnaCgU2gpzLhedjsxe03CHj5cV/u50NTfKR2AkNxJbkvu+Pi11Qs73pw/G2jBmXik3J/SdkQe1NQA=="
     },
     "@0x/contract-wrappers": {
-      "version": "13.2.0",
-      "resolved": "https://registry.npmjs.org/@0x/contract-wrappers/-/contract-wrappers-13.2.0.tgz",
-      "integrity": "sha512-XvQFdLIleba6CApbvEzFuHwvvBESzerniWecUjf+1imxOZkqRuxOR8XuvWFSp7XZcU37rRgICABmyK3Csu8Cmw==",
-      "requires": {
-        "@0x/assert": "^3.0.2",
-        "@0x/base-contract": "^6.0.2",
-        "@0x/contract-addresses": "^4.1.0",
-        "@0x/json-schemas": "^5.0.2",
-        "@0x/types": "^3.1.1",
-        "@0x/utils": "^5.1.1",
-        "@0x/web3-wrapper": "^7.0.2",
-        "ethereum-types": "^3.0.0",
+      "version": "13.9.0",
+      "resolved": "https://registry.npmjs.org/@0x/contract-wrappers/-/contract-wrappers-13.9.0.tgz",
+      "integrity": "sha512-1WbMmCree1icMJJbT9fYWVeULbOOwU/q7x6E4L9rwq+bi6KzNlLT8Cb2FzdFRQjEv8OKrSp04nGSPd8C9zUqrw==",
+      "requires": {
+        "@0x/assert": "^3.0.13",
+        "@0x/base-contract": "^6.2.7",
+        "@0x/contract-addresses": "^4.12.0",
+        "@0x/json-schemas": "^5.2.3",
+        "@0x/types": "^3.2.4",
+        "@0x/utils": "^5.6.3",
+        "@0x/web3-wrapper": "^7.2.4",
+        "ethereum-types": "^3.3.3",
         "ethers": "~4.0.4"
       },
       "dependencies": {
         "@0x/assert": {
-          "version": "3.0.2",
-          "resolved": "https://registry.npmjs.org/@0x/assert/-/assert-3.0.2.tgz",
-          "integrity": "sha512-kYRCP/eOoGX3S0zTXskIcy8jA0zxOm20BCDK7EImAQ8HvdmfZr8R6dqUm5UEBLd/JJ6jywR97Y+yCUiteIGg0g==",
-          "requires": {
-            "@0x/json-schemas": "^5.0.2",
-            "@0x/typescript-typings": "^5.0.1",
-            "@0x/utils": "^5.1.1",
+          "version": "3.0.13",
+          "resolved": "https://registry.npmjs.org/@0x/assert/-/assert-3.0.13.tgz",
+          "integrity": "sha512-CyfEx4ZrCHcq7Y73GGOIg9twx5Ogr3PRGwuRgObXnaHLlIr8FZ5ZjsgImd1vWsVSMQu3tC5kRC9V1IDcwB7x2Q==",
+          "requires": {
+            "@0x/json-schemas": "^5.2.3",
+            "@0x/typescript-typings": "^5.1.5",
+            "@0x/utils": "^5.6.3",
+            "@types/node": "12.12.54",
             "lodash": "^4.17.11",
             "valid-url": "^1.0.9"
           }
         },
         "@0x/json-schemas": {
-          "version": "5.0.2",
-          "resolved": "https://registry.npmjs.org/@0x/json-schemas/-/json-schemas-5.0.2.tgz",
-          "integrity": "sha512-2mwC42aWx6tvOCh58pRyYCSrmdajHdmfbDSCsII/8EOWRI6gYYenRMl/edVMnqKw7FH0QLsfWdx5GeP+jNoxDA==",
+          "version": "5.2.3",
+          "resolved": "https://registry.npmjs.org/@0x/json-schemas/-/json-schemas-5.2.3.tgz",
+          "integrity": "sha512-YOHabFNdb4jRgzOqKBAn8d2wnBtwOpg+avrhZgJRpOYyNqfNiL5niLe+Q6y4VNFHa2RAoC030jn/j5ms43+Anw==",
           "requires": {
-            "@0x/typescript-typings": "^5.0.1",
-            "@types/node": "*",
+            "@0x/typescript-typings": "^5.1.5",
+            "@types/node": "12.12.54",
             "jsonschema": "^1.2.0",
             "lodash.values": "^4.3.0"
           }
         },
         "@0x/types": {
-          "version": "3.1.1",
-          "resolved": "https://registry.npmjs.org/@0x/types/-/types-3.1.1.tgz",
-          "integrity": "sha512-+TQmzH+chWeDWpc+Lce3/q4X2UEHFfAwZcWrV7tEQ5EVAJvph7gpKawRW2XRsmHeQDSHBmiiBdSZ8Rc/OAjvlQ==",
+          "version": "3.2.4",
+          "resolved": "https://registry.npmjs.org/@0x/types/-/types-3.2.4.tgz",
+          "integrity": "sha512-AYmq+Dd93ftuQZ/+gjuy5QgGPi9959c9a8Fb3Y07fYbtrrcPSXUM7/FxtRRSHYBqj2F4CurPXY52ab6QkNZn5A==",
           "requires": {
-            "@types/node": "*",
+            "@types/node": "12.12.54",
             "bignumber.js": "~9.0.0",
-            "ethereum-types": "^3.0.0"
+            "ethereum-types": "^3.3.3"
           }
         },
         "@0x/typescript-typings": {
-          "version": "5.0.1",
-          "resolved": "https://registry.npmjs.org/@0x/typescript-typings/-/typescript-typings-5.0.1.tgz",
-          "integrity": "sha512-zSA39URHkFnL16WD30VMa8wL8va0Khpx9APHffdPWpBOr9SUPdADtae5HO4iNCYvSgo3mrtPlKID2nIqREIHOQ==",
+          "version": "5.1.5",
+          "resolved": "https://registry.npmjs.org/@0x/typescript-typings/-/typescript-typings-5.1.5.tgz",
+          "integrity": "sha512-I55QfQNJPo8tG6j/PsTTgbeaIMbkGs5vdwVVfFkxSE8rXIEh4Qsra3JXke/7EpFZvhoUFngX4qdQyK2kI4V3sw==",
           "requires": {
             "@types/bn.js": "^4.11.0",
+            "@types/node": "12.12.54",
             "@types/react": "*",
             "bignumber.js": "~9.0.0",
-            "ethereum-types": "^3.0.0",
+            "ethereum-types": "^3.3.3",
             "popper.js": "1.14.3"
           }
         },
         "@0x/utils": {
-          "version": "5.1.1",
-          "resolved": "https://registry.npmjs.org/@0x/utils/-/utils-5.1.1.tgz",
-          "integrity": "sha512-DRNKtAqZR0vFA1XdUhBwaIz2qEjWS1xqdvzQl/Dn8OLJH+1sxb+1UmtG6fOlbu7pTLbF+CWoaYf2+pvQfcF//g==",
+          "version": "5.6.3",
+          "resolved": "https://registry.npmjs.org/@0x/utils/-/utils-5.6.3.tgz",
+          "integrity": "sha512-r7ixvMNIjRcvar6AqfSqj5Y3H5MriBfslsshiKSB6SxdnradHpZwpH4xdHbEq0HdkD5/xFRadfGhok0KbPRqvQ==",
           "requires": {
-            "@0x/types": "^3.1.1",
-            "@0x/typescript-typings": "^5.0.1",
-            "@types/node": "*",
+            "@0x/types": "^3.2.4",
+            "@0x/typescript-typings": "^5.1.5",
+            "@types/node": "12.12.54",
             "abortcontroller-polyfill": "^1.1.9",
             "bignumber.js": "~9.0.0",
             "chalk": "^2.3.0",
             "detect-node": "2.0.3",
-            "ethereum-types": "^3.0.0",
+            "ethereum-types": "^3.3.3",
             "ethereumjs-util": "^5.1.1",
             "ethers": "~4.0.4",
             "isomorphic-fetch": "2.2.1",
@@ -598,20 +565,26 @@
           }
         },
         "@0x/web3-wrapper": {
-          "version": "7.0.2",
-          "resolved": "https://registry.npmjs.org/@0x/web3-wrapper/-/web3-wrapper-7.0.2.tgz",
-          "integrity": "sha512-kSmrg0E0ZmuNKTKmanxHlRUO5dom8Wr2eDmgG+NZcuWY3EJKIkuxFsz6KRUfoYbVOVT22ZQZazzZIGwoz/LObg==",
-          "requires": {
-            "@0x/assert": "^3.0.2",
-            "@0x/json-schemas": "^5.0.2",
-            "@0x/typescript-typings": "^5.0.1",
-            "@0x/utils": "^5.1.1",
-            "ethereum-types": "^3.0.0",
+          "version": "7.2.4",
+          "resolved": "https://registry.npmjs.org/@0x/web3-wrapper/-/web3-wrapper-7.2.4.tgz",
+          "integrity": "sha512-/Rtwd/uVJBXCW40Z+Bp/+wEv4AQCGU+8K7uqYh+dzU3aRsKPpar9pTBEO2wbujTeYQRHfq1SB1zVdAJWrMSBdg==",
+          "requires": {
+            "@0x/assert": "^3.0.13",
+            "@0x/json-schemas": "^5.2.3",
+            "@0x/typescript-typings": "^5.1.5",
+            "@0x/utils": "^5.6.3",
+            "@types/node": "12.12.54",
+            "ethereum-types": "^3.3.3",
             "ethereumjs-util": "^5.1.1",
             "ethers": "~4.0.4",
             "lodash": "^4.17.11"
           }
         },
+        "@types/node": {
+          "version": "12.12.54",
+          "resolved": "https://registry.npmjs.org/@types/node/-/node-12.12.54.tgz",
+          "integrity": "sha512-ge4xZ3vSBornVYlDnk7yZ0gK6ChHf/CHB7Gl1I0Jhah8DDnEQqBzgohYG4FX4p81TNirSETOiSyn+y1r9/IR6w=="
+        },
         "ansi-styles": {
           "version": "3.2.1",
           "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
@@ -631,9 +604,9 @@
           }
         },
         "elliptic": {
-          "version": "6.5.2",
-          "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.2.tgz",
-          "integrity": "sha512-f4x70okzZbIQl/NSRLkI/+tteV/9WqL98zx+SQ69KbXxmVrmjwsNUPn/gYJJ0sHvEak24cZgHIPegRePAtA/xw==",
+          "version": "6.5.3",
+          "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.3.tgz",
+          "integrity": "sha512-IMqzv5wNQf+E6aHeIqATs0tOLeOTwj1QKbRcS3jBbYkl5oLAserA8yJTT7/VyHUYG91PRmPyeQDObKLPpeS4dw==",
           "requires": {
             "bn.js": "^4.4.0",
             "brorand": "^1.0.1",
@@ -645,22 +618,22 @@
           }
         },
         "ethereum-types": {
-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/ethereum-types/-/ethereum-types-3.0.0.tgz",
-          "integrity": "sha512-jRSsiua+e4/89r7M3mqPcP1M2f3TgXxpVmWysy+7pEg2H4lwEQRWarbYfIpWp81NtxrcMQv5bMK+yR1MN4sDpg==",
+          "version": "3.3.3",
+          "resolved": "https://registry.npmjs.org/ethereum-types/-/ethereum-types-3.3.3.tgz",
+          "integrity": "sha512-FWW7ajHqgoqVHhPMX4sY2ycARpPFL8p/64rpToo8awNrJY7rBDnSC8esQYlAPeaiawf9fTM/xAgEm9VKY7J5kg==",
           "requires": {
-            "@types/node": "*",
+            "@types/node": "12.12.54",
             "bignumber.js": "~9.0.0"
           }
         },
         "ethers": {
-          "version": "4.0.47",
-          "resolved": "https://registry.npmjs.org/ethers/-/ethers-4.0.47.tgz",
-          "integrity": "sha512-hssRYhngV4hiDNeZmVU/k5/E8xmLG8UpcNUzg6mb7lqhgpFPH/t7nuv20RjRrEf0gblzvi2XwR5Te+V3ZFc9pQ==",
+          "version": "4.0.48",
+          "resolved": "https://registry.npmjs.org/ethers/-/ethers-4.0.48.tgz",
+          "integrity": "sha512-sZD5K8H28dOrcidzx9f8KYh8083n5BexIO3+SbE4jK83L85FxtpXZBCQdXb8gkg+7sBqomcLhhkU7UHL+F7I2g==",
           "requires": {
             "aes-js": "3.0.0",
             "bn.js": "^4.4.0",
-            "elliptic": "6.5.2",
+            "elliptic": "6.5.3",
             "hash.js": "1.1.3",
             "js-sha3": "0.5.7",
             "scrypt-js": "2.0.4",
@@ -730,78 +703,81 @@
       }
     },
     "@0x/order-utils": {
-      "version": "10.0.1",
-      "resolved": "https://registry.npmjs.org/@0x/order-utils/-/order-utils-10.0.1.tgz",
-      "integrity": "sha512-NZsDciNSQtn3ARPmWc+pNK62GK2miELKryhPwwQzqpQs7bi8RSCTf26TmTMtYeXUg3t0gVfhfRD8FGBur53N9A==",
-      "requires": {
-        "@0x/assert": "^3.0.2",
-        "@0x/contract-wrappers": "^13.2.0",
-        "@0x/json-schemas": "^5.0.2",
-        "@0x/utils": "^5.1.1",
-        "@0x/web3-wrapper": "^7.0.2",
+      "version": "10.4.0",
+      "resolved": "https://registry.npmjs.org/@0x/order-utils/-/order-utils-10.4.0.tgz",
+      "integrity": "sha512-5g1xLRBPvig6gnEIhM0+ev+AkK5XBLciqWx+/cb+bgojX77oiawZthyD26Lz1kzliJHiXEnwuZFHAfItub0Agw==",
+      "requires": {
+        "@0x/assert": "^3.0.13",
+        "@0x/contract-addresses": "^4.12.0",
+        "@0x/contract-wrappers": "^13.9.0",
+        "@0x/json-schemas": "^5.2.3",
+        "@0x/utils": "^5.6.3",
+        "@0x/web3-wrapper": "^7.2.4",
         "ethereumjs-util": "^5.1.1",
         "ethers": "~4.0.4",
         "lodash": "^4.17.11"
       },
       "dependencies": {
         "@0x/assert": {
-          "version": "3.0.2",
-          "resolved": "https://registry.npmjs.org/@0x/assert/-/assert-3.0.2.tgz",
-          "integrity": "sha512-kYRCP/eOoGX3S0zTXskIcy8jA0zxOm20BCDK7EImAQ8HvdmfZr8R6dqUm5UEBLd/JJ6jywR97Y+yCUiteIGg0g==",
-          "requires": {
-            "@0x/json-schemas": "^5.0.2",
-            "@0x/typescript-typings": "^5.0.1",
-            "@0x/utils": "^5.1.1",
+          "version": "3.0.13",
+          "resolved": "https://registry.npmjs.org/@0x/assert/-/assert-3.0.13.tgz",
+          "integrity": "sha512-CyfEx4ZrCHcq7Y73GGOIg9twx5Ogr3PRGwuRgObXnaHLlIr8FZ5ZjsgImd1vWsVSMQu3tC5kRC9V1IDcwB7x2Q==",
+          "requires": {
+            "@0x/json-schemas": "^5.2.3",
+            "@0x/typescript-typings": "^5.1.5",
+            "@0x/utils": "^5.6.3",
+            "@types/node": "12.12.54",
             "lodash": "^4.17.11",
             "valid-url": "^1.0.9"
           }
         },
         "@0x/json-schemas": {
-          "version": "5.0.2",
-          "resolved": "https://registry.npmjs.org/@0x/json-schemas/-/json-schemas-5.0.2.tgz",
-          "integrity": "sha512-2mwC42aWx6tvOCh58pRyYCSrmdajHdmfbDSCsII/8EOWRI6gYYenRMl/edVMnqKw7FH0QLsfWdx5GeP+jNoxDA==",
+          "version": "5.2.3",
+          "resolved": "https://registry.npmjs.org/@0x/json-schemas/-/json-schemas-5.2.3.tgz",
+          "integrity": "sha512-YOHabFNdb4jRgzOqKBAn8d2wnBtwOpg+avrhZgJRpOYyNqfNiL5niLe+Q6y4VNFHa2RAoC030jn/j5ms43+Anw==",
           "requires": {
-            "@0x/typescript-typings": "^5.0.1",
-            "@types/node": "*",
+            "@0x/typescript-typings": "^5.1.5",
+            "@types/node": "12.12.54",
             "jsonschema": "^1.2.0",
             "lodash.values": "^4.3.0"
           }
         },
         "@0x/types": {
-          "version": "3.1.1",
-          "resolved": "https://registry.npmjs.org/@0x/types/-/types-3.1.1.tgz",
-          "integrity": "sha512-+TQmzH+chWeDWpc+Lce3/q4X2UEHFfAwZcWrV7tEQ5EVAJvph7gpKawRW2XRsmHeQDSHBmiiBdSZ8Rc/OAjvlQ==",
+          "version": "3.2.4",
+          "resolved": "https://registry.npmjs.org/@0x/types/-/types-3.2.4.tgz",
+          "integrity": "sha512-AYmq+Dd93ftuQZ/+gjuy5QgGPi9959c9a8Fb3Y07fYbtrrcPSXUM7/FxtRRSHYBqj2F4CurPXY52ab6QkNZn5A==",
           "requires": {
-            "@types/node": "*",
+            "@types/node": "12.12.54",
             "bignumber.js": "~9.0.0",
-            "ethereum-types": "^3.0.0"
+            "ethereum-types": "^3.3.3"
           }
         },
         "@0x/typescript-typings": {
-          "version": "5.0.1",
-          "resolved": "https://registry.npmjs.org/@0x/typescript-typings/-/typescript-typings-5.0.1.tgz",
-          "integrity": "sha512-zSA39URHkFnL16WD30VMa8wL8va0Khpx9APHffdPWpBOr9SUPdADtae5HO4iNCYvSgo3mrtPlKID2nIqREIHOQ==",
+          "version": "5.1.5",
+          "resolved": "https://registry.npmjs.org/@0x/typescript-typings/-/typescript-typings-5.1.5.tgz",
+          "integrity": "sha512-I55QfQNJPo8tG6j/PsTTgbeaIMbkGs5vdwVVfFkxSE8rXIEh4Qsra3JXke/7EpFZvhoUFngX4qdQyK2kI4V3sw==",
           "requires": {
             "@types/bn.js": "^4.11.0",
+            "@types/node": "12.12.54",
             "@types/react": "*",
             "bignumber.js": "~9.0.0",
-            "ethereum-types": "^3.0.0",
+            "ethereum-types": "^3.3.3",
             "popper.js": "1.14.3"
           }
         },
         "@0x/utils": {
-          "version": "5.1.1",
-          "resolved": "https://registry.npmjs.org/@0x/utils/-/utils-5.1.1.tgz",
-          "integrity": "sha512-DRNKtAqZR0vFA1XdUhBwaIz2qEjWS1xqdvzQl/Dn8OLJH+1sxb+1UmtG6fOlbu7pTLbF+CWoaYf2+pvQfcF//g==",
+          "version": "5.6.3",
+          "resolved": "https://registry.npmjs.org/@0x/utils/-/utils-5.6.3.tgz",
+          "integrity": "sha512-r7ixvMNIjRcvar6AqfSqj5Y3H5MriBfslsshiKSB6SxdnradHpZwpH4xdHbEq0HdkD5/xFRadfGhok0KbPRqvQ==",
           "requires": {
-            "@0x/types": "^3.1.1",
-            "@0x/typescript-typings": "^5.0.1",
-            "@types/node": "*",
+            "@0x/types": "^3.2.4",
+            "@0x/typescript-typings": "^5.1.5",
+            "@types/node": "12.12.54",
             "abortcontroller-polyfill": "^1.1.9",
             "bignumber.js": "~9.0.0",
             "chalk": "^2.3.0",
             "detect-node": "2.0.3",
-            "ethereum-types": "^3.0.0",
+            "ethereum-types": "^3.3.3",
             "ethereumjs-util": "^5.1.1",
             "ethers": "~4.0.4",
             "isomorphic-fetch": "2.2.1",
@@ -810,20 +786,26 @@
           }
         },
         "@0x/web3-wrapper": {
-          "version": "7.0.2",
-          "resolved": "https://registry.npmjs.org/@0x/web3-wrapper/-/web3-wrapper-7.0.2.tgz",
-          "integrity": "sha512-kSmrg0E0ZmuNKTKmanxHlRUO5dom8Wr2eDmgG+NZcuWY3EJKIkuxFsz6KRUfoYbVOVT22ZQZazzZIGwoz/LObg==",
-          "requires": {
-            "@0x/assert": "^3.0.2",
-            "@0x/json-schemas": "^5.0.2",
-            "@0x/typescript-typings": "^5.0.1",
-            "@0x/utils": "^5.1.1",
-            "ethereum-types": "^3.0.0",
+          "version": "7.2.4",
+          "resolved": "https://registry.npmjs.org/@0x/web3-wrapper/-/web3-wrapper-7.2.4.tgz",
+          "integrity": "sha512-/Rtwd/uVJBXCW40Z+Bp/+wEv4AQCGU+8K7uqYh+dzU3aRsKPpar9pTBEO2wbujTeYQRHfq1SB1zVdAJWrMSBdg==",
+          "requires": {
+            "@0x/assert": "^3.0.13",
+            "@0x/json-schemas": "^5.2.3",
+            "@0x/typescript-typings": "^5.1.5",
+            "@0x/utils": "^5.6.3",
+            "@types/node": "12.12.54",
+            "ethereum-types": "^3.3.3",
             "ethereumjs-util": "^5.1.1",
             "ethers": "~4.0.4",
             "lodash": "^4.17.11"
           }
         },
+        "@types/node": {
+          "version": "12.12.54",
+          "resolved": "https://registry.npmjs.org/@types/node/-/node-12.12.54.tgz",
+          "integrity": "sha512-ge4xZ3vSBornVYlDnk7yZ0gK6ChHf/CHB7Gl1I0Jhah8DDnEQqBzgohYG4FX4p81TNirSETOiSyn+y1r9/IR6w=="
+        },
         "ansi-styles": {
           "version": "3.2.1",
           "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
@@ -843,9 +825,9 @@
           }
         },
         "elliptic": {
-          "version": "6.5.2",
-          "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.2.tgz",
-          "integrity": "sha512-f4x70okzZbIQl/NSRLkI/+tteV/9WqL98zx+SQ69KbXxmVrmjwsNUPn/gYJJ0sHvEak24cZgHIPegRePAtA/xw==",
+          "version": "6.5.3",
+          "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.3.tgz",
+          "integrity": "sha512-IMqzv5wNQf+E6aHeIqATs0tOLeOTwj1QKbRcS3jBbYkl5oLAserA8yJTT7/VyHUYG91PRmPyeQDObKLPpeS4dw==",
           "requires": {
             "bn.js": "^4.4.0",
             "brorand": "^1.0.1",
@@ -857,22 +839,22 @@
           }
         },
         "ethereum-types": {
-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/ethereum-types/-/ethereum-types-3.0.0.tgz",
-          "integrity": "sha512-jRSsiua+e4/89r7M3mqPcP1M2f3TgXxpVmWysy+7pEg2H4lwEQRWarbYfIpWp81NtxrcMQv5bMK+yR1MN4sDpg==",
+          "version": "3.3.3",
+          "resolved": "https://registry.npmjs.org/ethereum-types/-/ethereum-types-3.3.3.tgz",
+          "integrity": "sha512-FWW7ajHqgoqVHhPMX4sY2ycARpPFL8p/64rpToo8awNrJY7rBDnSC8esQYlAPeaiawf9fTM/xAgEm9VKY7J5kg==",
           "requires": {
-            "@types/node": "*",
+            "@types/node": "12.12.54",
             "bignumber.js": "~9.0.0"
           }
         },
         "ethers": {
-          "version": "4.0.47",
-          "resolved": "https://registry.npmjs.org/ethers/-/ethers-4.0.47.tgz",
-          "integrity": "sha512-hssRYhngV4hiDNeZmVU/k5/E8xmLG8UpcNUzg6mb7lqhgpFPH/t7nuv20RjRrEf0gblzvi2XwR5Te+V3ZFc9pQ==",
+          "version": "4.0.48",
+          "resolved": "https://registry.npmjs.org/ethers/-/ethers-4.0.48.tgz",
+          "integrity": "sha512-sZD5K8H28dOrcidzx9f8KYh8083n5BexIO3+SbE4jK83L85FxtpXZBCQdXb8gkg+7sBqomcLhhkU7UHL+F7I2g==",
           "requires": {
             "aes-js": "3.0.0",
             "bn.js": "^4.4.0",
-            "elliptic": "6.5.2",
+            "elliptic": "6.5.3",
             "hash.js": "1.1.3",
             "js-sha3": "0.5.7",
             "scrypt-js": "2.0.4",
@@ -2920,6 +2902,14 @@
       "integrity": "sha512-f5j5b/Gf71L+dbqxIpQ4Z2WlmI/mPJ0fOkGGmFgtb6sAu97EPczzbS3/tJKxmcYDj55OX6ssqwDAWOHIYDRDGA==",
       "dev": true
     },
+    "@types/pbkdf2": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/@types/pbkdf2/-/pbkdf2-3.1.0.tgz",
+      "integrity": "sha512-Cf63Rv7jCQ0LaL8tNXmEyqTHuIJxRdlS5vMh1mj5voN4+QFhVZnlZruezqpWYDiJ8UTzhP0VmeLXCmBk66YrMQ==",
+      "requires": {
+        "@types/node": "*"
+      }
+    },
     "@types/prop-types": {
       "version": "15.5.6",
       "resolved": "https://registry.npmjs.org/@types/prop-types/-/prop-types-15.5.6.tgz",
@@ -2942,6 +2932,14 @@
         "@types/node": "*"
       }
     },
+    "@types/secp256k1": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/@types/secp256k1/-/secp256k1-4.0.1.tgz",
+      "integrity": "sha512-+ZjSA8ELlOp8SlKi0YLB2tz9d5iPNEmOBd+8Rz21wTMdaXQIa9b6TEnD6l5qKOCypE7FSyPyck12qZJxSDNoog==",
+      "requires": {
+        "@types/node": "*"
+      }
+    },
     "@types/stack-utils": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/@types/stack-utils/-/stack-utils-1.0.1.tgz",
@@ -4126,6 +4124,14 @@
         }
       }
     },
+    "base-x": {
+      "version": "3.0.8",
+      "resolved": "https://registry.npmjs.org/base-x/-/base-x-3.0.8.tgz",
+      "integrity": "sha512-Rl/1AWP4J/zRrk54hhlxH4drNxPJXYUaKffODVI53/dAsV4t9fBxyxYKAVPU1XBHxYwOWP9h9H0hM2MVw4YfJA==",
+      "requires": {
+        "safe-buffer": "^5.0.1"
+      }
+    },
     "base64-js": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.3.0.tgz",
@@ -4212,6 +4218,11 @@
         }
       }
     },
+    "blakejs": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/blakejs/-/blakejs-1.1.0.tgz",
+      "integrity": "sha1-ad+S75U6qIylGjLfarHFShVfx6U="
+    },
     "bluebird": {
       "version": "3.5.5",
       "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.5.5.tgz",
@@ -4306,22 +4317,6 @@
         "safe-buffer": "^5.0.1"
       }
     },
-    "browserify-sha3": {
-      "version": "0.0.4",
-      "resolved": "https://registry.npmjs.org/browserify-sha3/-/browserify-sha3-0.0.4.tgz",
-      "integrity": "sha1-CGxHuMgjFsnUcCLCYYWVRXbdjiY=",
-      "requires": {
-        "js-sha3": "^0.6.1",
-        "safe-buffer": "^5.1.1"
-      },
-      "dependencies": {
-        "js-sha3": {
-          "version": "0.6.1",
-          "resolved": "https://registry.npmjs.org/js-sha3/-/js-sha3-0.6.1.tgz",
-          "integrity": "sha1-W4n3enR3Z5h39YxKB1JAk0sflcA="
-        }
-      }
-    },
     "browserslist": {
       "version": "3.2.8",
       "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-3.2.8.tgz",
@@ -4336,6 +4331,26 @@
       "resolved": "https://registry.npmjs.org/bs58/-/bs58-2.0.1.tgz",
       "integrity": "sha1-VZCNWPGYKrogCPob7Y+RmYopv40="
     },
+    "bs58check": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/bs58check/-/bs58check-2.1.2.tgz",
+      "integrity": "sha512-0TS1jicxdU09dwJMNZtVAfzPi6Q6QeN0pM1Fkzrjn+XYHvzMKPU3pHVpva+769iNVSfIYWf7LJ6WR+BuuMf8cA==",
+      "requires": {
+        "bs58": "^4.0.0",
+        "create-hash": "^1.1.0",
+        "safe-buffer": "^5.1.2"
+      },
+      "dependencies": {
+        "bs58": {
+          "version": "4.0.1",
+          "resolved": "https://registry.npmjs.org/bs58/-/bs58-4.0.1.tgz",
+          "integrity": "sha1-vhYedsNU9veIrkBx9j806MTwpCo=",
+          "requires": {
+            "base-x": "^3.0.2"
+          }
+        }
+      }
+    },
     "bser": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/bser/-/bser-2.1.0.tgz",
@@ -4350,6 +4365,15 @@
       "resolved": "https://registry.npmjs.org/bson/-/bson-1.1.1.tgz",
       "integrity": "sha512-jCGVYLoYMHDkOsbwJZBCqwMHyH4c+wzgI9hG7Z6SZJRXWr+x58pdIbm2i9a/jFGCkRJqRUr8eoI7lDWa0hTkxg=="
     },
+    "buffer": {
+      "version": "5.6.0",
+      "resolved": "https://registry.npmjs.org/buffer/-/buffer-5.6.0.tgz",
+      "integrity": "sha512-/gDYp/UtU0eA1ys8bOs9J6a+E/KWIY+DZ+Q2WESNUA0jFRsJOc0SNUO6xJ5SGA1xueg3NL65W6s+NY5l9cunuw==",
+      "requires": {
+        "base64-js": "^1.0.2",
+        "ieee754": "^1.1.4"
+      }
+    },
     "buffer-crc32": {
       "version": "0.2.13",
       "resolved": "https://registry.npmjs.org/buffer-crc32/-/buffer-crc32-0.2.13.tgz",
@@ -4836,9 +4860,9 @@
       "integrity": "sha512-5wjnpaT/3dV+XB4borEsnAYQchn00XSgTAWKDkEqv+K8KevjbzmofK6hfJ9TZIlpj2N0xQpazy7PiRQiWHqzWg=="
     },
     "core-js-pure": {
-      "version": "3.6.1",
-      "resolved": "https://registry.npmjs.org/core-js-pure/-/core-js-pure-3.6.1.tgz",
-      "integrity": "sha512-yKiUdvQWq66xUc408duxUCxFHuDfz5trF5V4xnQzb8C7P/5v2gFUdyNWQoevyAeGYB1hl1X/pzGZ20R3WxZQBA=="
+      "version": "3.6.5",
+      "resolved": "https://registry.npmjs.org/core-js-pure/-/core-js-pure-3.6.5.tgz",
+      "integrity": "sha512-lacdXOimsiD0QyNf9BC/mxivNJ/ybBGJXQFKzRekp1WTHoVUWsUHEn+2T8GJAzzIhyOuXA+gOxCVN3l+5PLPUA=="
     },
     "core-util-is": {
       "version": "1.0.2",
@@ -5404,9 +5428,12 @@
           }
         },
         "level-codec": {
-          "version": "9.0.1",
-          "resolved": "https://registry.npmjs.org/level-codec/-/level-codec-9.0.1.tgz",
-          "integrity": "sha512-ajFP0kJ+nyq4i6kptSM+mAvJKLOg1X5FiFPtLG9M5gCEZyBmgDi3FkDrvlMkEzrUn1cWxtvVmrvoS4ASyO/q+Q=="
+          "version": "9.0.2",
+          "resolved": "https://registry.npmjs.org/level-codec/-/level-codec-9.0.2.tgz",
+          "integrity": "sha512-UyIwNb1lJBChJnGfjmO0OR+ezh2iVu1Kas3nvBS/BzGnx79dv6g7unpKIDNPMhfdTEGoc7mC8uAu51XEtX+FHQ==",
+          "requires": {
+            "buffer": "^5.6.0"
+          }
         },
         "level-errors": {
           "version": "2.0.1",
@@ -5996,31 +6023,63 @@
       }
     },
     "ethashjs": {
-      "version": "0.0.7",
-      "resolved": "https://registry.npmjs.org/ethashjs/-/ethashjs-0.0.7.tgz",
-      "integrity": "sha1-ML/kGWcmaQoMWdO4Jy5w1NDDS64=",
+      "version": "0.0.8",
+      "resolved": "https://registry.npmjs.org/ethashjs/-/ethashjs-0.0.8.tgz",
+      "integrity": "sha512-/MSbf/r2/Ld8o0l15AymjOTlPqpN8Cr4ByUEA9GtR4x0yAh3TdtDzEg29zMjXCNPI7u6E5fOQdj/Cf9Tc7oVNw==",
       "requires": {
-        "async": "^1.4.2",
-        "buffer-xor": "^1.0.3",
-        "ethereumjs-util": "^4.0.1",
+        "async": "^2.1.2",
+        "buffer-xor": "^2.0.1",
+        "ethereumjs-util": "^7.0.2",
         "miller-rabin": "^4.0.0"
       },
       "dependencies": {
-        "async": {
-          "version": "1.5.2",
-          "resolved": "https://registry.npmjs.org/async/-/async-1.5.2.tgz",
-          "integrity": "sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo="
+        "@types/bn.js": {
+          "version": "4.11.6",
+          "resolved": "https://registry.npmjs.org/@types/bn.js/-/bn.js-4.11.6.tgz",
+          "integrity": "sha512-pqr857jrp2kPuO9uRjZ3PwnJTjoQy+fcdxvBTvHm6dkmEL9q+hDD/2j/0ELOBPtPnS8LjCX0gI9nbl8lVkadpg==",
+          "requires": {
+            "@types/node": "*"
+          }
+        },
+        "bn.js": {
+          "version": "5.1.3",
+          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-5.1.3.tgz",
+          "integrity": "sha512-GkTiFpjFtUzU9CbMeJ5iazkCzGL3jrhzerzZIuqLABjbwRaFt33I9tUdSNryIptM+RxDet6OKm2WnLXzW51KsQ=="
+        },
+        "buffer-xor": {
+          "version": "2.0.2",
+          "resolved": "https://registry.npmjs.org/buffer-xor/-/buffer-xor-2.0.2.tgz",
+          "integrity": "sha512-eHslX0bin3GB+Lx2p7lEYRShRewuNZL3fUl4qlVJGGiwoPGftmt8JQgk2Y9Ji5/01TnVDo33E5b5O3vUB1HdqQ==",
+          "requires": {
+            "safe-buffer": "^5.1.1"
+          }
         },
         "ethereumjs-util": {
-          "version": "4.5.0",
-          "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-4.5.0.tgz",
-          "integrity": "sha1-PpQosxfuvaPXJg2FT93alUsfG8Y=",
+          "version": "7.0.7",
+          "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-7.0.7.tgz",
+          "integrity": "sha512-vU5rtZBlZsgkTw3o6PDKyB8li2EgLavnAbsKcfsH2YhHH1Le+PP8vEiMnAnvgc1B6uMoaM5GDCrVztBw0Q5K9g==",
           "requires": {
-            "bn.js": "^4.8.0",
+            "@types/bn.js": "^4.11.3",
+            "bn.js": "^5.1.2",
             "create-hash": "^1.1.2",
-            "keccakjs": "^0.2.0",
-            "rlp": "^2.0.0",
-            "secp256k1": "^3.0.1"
+            "ethereum-cryptography": "^0.1.3",
+            "ethjs-util": "0.1.6",
+            "rlp": "^2.2.4"
+          }
+        },
+        "rlp": {
+          "version": "2.2.6",
+          "resolved": "https://registry.npmjs.org/rlp/-/rlp-2.2.6.tgz",
+          "integrity": "sha512-HAfAmL6SDYNWPUOJNrM500x4Thn4PZsEy5pijPh40U9WfNk0z15hUYzO9xVIMAdIHdFtD8CBDHd75Td1g36Mjg==",
+          "requires": {
+            "bn.js": "^4.11.1"
+          },
+          "dependencies": {
+            "bn.js": {
+              "version": "4.11.9",
+              "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.9.tgz",
+              "integrity": "sha512-E6QoYqCKZfgatHTdHzs1RRKP7ip4vvm+EyRUeE2RF0NblwVvb0p6jSVeNTOFxPn26QXN2o6SMfNxKp6kU8zQaw=="
+            }
           }
         }
       }
@@ -6030,6 +6089,82 @@
       "resolved": "https://registry.npmjs.org/ethereum-common/-/ethereum-common-0.0.18.tgz",
       "integrity": "sha1-L9w1dvIykDNYl26znaeDIT/5Uj8="
     },
+    "ethereum-cryptography": {
+      "version": "0.1.3",
+      "resolved": "https://registry.npmjs.org/ethereum-cryptography/-/ethereum-cryptography-0.1.3.tgz",
+      "integrity": "sha512-w8/4x1SGGzc+tO97TASLja6SLd3fRIK2tLVcV2Gx4IB21hE19atll5Cq9o3d0ZmAYC/8aw0ipieTSiekAea4SQ==",
+      "requires": {
+        "@types/pbkdf2": "^3.0.0",
+        "@types/secp256k1": "^4.0.1",
+        "blakejs": "^1.1.0",
+        "browserify-aes": "^1.2.0",
+        "bs58check": "^2.1.2",
+        "create-hash": "^1.2.0",
+        "create-hmac": "^1.1.7",
+        "hash.js": "^1.1.7",
+        "keccak": "^3.0.0",
+        "pbkdf2": "^3.0.17",
+        "randombytes": "^2.1.0",
+        "safe-buffer": "^5.1.2",
+        "scrypt-js": "^3.0.0",
+        "secp256k1": "^4.0.1",
+        "setimmediate": "^1.0.5"
+      },
+      "dependencies": {
+        "elliptic": {
+          "version": "6.5.3",
+          "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.3.tgz",
+          "integrity": "sha512-IMqzv5wNQf+E6aHeIqATs0tOLeOTwj1QKbRcS3jBbYkl5oLAserA8yJTT7/VyHUYG91PRmPyeQDObKLPpeS4dw==",
+          "requires": {
+            "bn.js": "^4.4.0",
+            "brorand": "^1.0.1",
+            "hash.js": "^1.0.0",
+            "hmac-drbg": "^1.0.0",
+            "inherits": "^2.0.1",
+            "minimalistic-assert": "^1.0.0",
+            "minimalistic-crypto-utils": "^1.0.0"
+          }
+        },
+        "hash.js": {
+          "version": "1.1.7",
+          "resolved": "https://registry.npmjs.org/hash.js/-/hash.js-1.1.7.tgz",
+          "integrity": "sha512-taOaskGt4z4SOANNseOviYDvjEJinIkRgmp7LbKP2YTTmVxWBl87s/uzK9r+44BclBSp2X7K1hqeNfz9JbBeXA==",
+          "requires": {
+            "inherits": "^2.0.3",
+            "minimalistic-assert": "^1.0.1"
+          }
+        },
+        "keccak": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/keccak/-/keccak-3.0.1.tgz",
+          "integrity": "sha512-epq90L9jlFWCW7+pQa6JOnKn2Xgl2mtI664seYR6MHskvI9agt7AnDqmAlp9TqU4/caMYbA08Hi5DMZAl5zdkA==",
+          "requires": {
+            "node-addon-api": "^2.0.0",
+            "node-gyp-build": "^4.2.0"
+          }
+        },
+        "scrypt-js": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/scrypt-js/-/scrypt-js-3.0.1.tgz",
+          "integrity": "sha512-cdwTTnqPu0Hyvf5in5asVdZocVDTNRmR7XEcJuIzMjJeSHybHl7vpB66AzwTaIg6CLSbtjcxc8fqcySfnTkccA=="
+        },
+        "secp256k1": {
+          "version": "4.0.2",
+          "resolved": "https://registry.npmjs.org/secp256k1/-/secp256k1-4.0.2.tgz",
+          "integrity": "sha512-UDar4sKvWAksIlfX3xIaQReADn+WFnHvbVujpcbr+9Sf/69odMwy2MUsz5CKLQgX9nsIyrjuxL2imVyoNHa3fg==",
+          "requires": {
+            "elliptic": "^6.5.2",
+            "node-addon-api": "^2.0.0",
+            "node-gyp-build": "^4.2.0"
+          }
+        },
+        "setimmediate": {
+          "version": "1.0.5",
+          "resolved": "https://registry.npmjs.org/setimmediate/-/setimmediate-1.0.5.tgz",
+          "integrity": "sha1-KQy7Iy4waULX1+qbg3Mqt4VvgoU="
+        }
+      }
+    },
     "ethereum-token-utils": {
       "version": "git+https://github.com/0xTracker/ethereum-token-utils.git#e9f2723a75f4fa4401a6b0cabd07c38dd0f08f48",
       "from": "git+https://github.com/0xTracker/ethereum-token-utils.git",
@@ -6203,15 +6338,15 @@
       }
     },
     "ethereumjs-blockchain": {
-      "version": "4.0.3",
-      "resolved": "https://registry.npmjs.org/ethereumjs-blockchain/-/ethereumjs-blockchain-4.0.3.tgz",
-      "integrity": "sha512-0nJWbyA+Gu0ZKZr/cywMtB/77aS/4lOVsIKbgUN2sFQYscXO5rPbUfrEe7G2Zhjp86/a0VqLllemDSTHvx3vZA==",
+      "version": "4.0.4",
+      "resolved": "https://registry.npmjs.org/ethereumjs-blockchain/-/ethereumjs-blockchain-4.0.4.tgz",
+      "integrity": "sha512-zCxaRMUOzzjvX78DTGiKjA+4h2/sF0OYL1QuPux0DHpyq8XiNoF5GYHtb++GUxVlMsMfZV7AVyzbtgcRdIcEPQ==",
       "requires": {
         "async": "^2.6.1",
         "ethashjs": "~0.0.7",
         "ethereumjs-block": "~2.2.2",
         "ethereumjs-common": "^1.5.0",
-        "ethereumjs-util": "~6.1.0",
+        "ethereumjs-util": "^6.1.0",
         "flow-stoplight": "^1.0.0",
         "level-mem": "^3.0.1",
         "lru-cache": "^5.1.1",
@@ -6219,6 +6354,28 @@
         "semaphore": "^1.1.0"
       },
       "dependencies": {
+        "@types/bn.js": {
+          "version": "4.11.6",
+          "resolved": "https://registry.npmjs.org/@types/bn.js/-/bn.js-4.11.6.tgz",
+          "integrity": "sha512-pqr857jrp2kPuO9uRjZ3PwnJTjoQy+fcdxvBTvHm6dkmEL9q+hDD/2j/0ELOBPtPnS8LjCX0gI9nbl8lVkadpg==",
+          "requires": {
+            "@types/node": "*"
+          }
+        },
+        "elliptic": {
+          "version": "6.5.3",
+          "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.3.tgz",
+          "integrity": "sha512-IMqzv5wNQf+E6aHeIqATs0tOLeOTwj1QKbRcS3jBbYkl5oLAserA8yJTT7/VyHUYG91PRmPyeQDObKLPpeS4dw==",
+          "requires": {
+            "bn.js": "^4.4.0",
+            "brorand": "^1.0.1",
+            "hash.js": "^1.0.0",
+            "hmac-drbg": "^1.0.0",
+            "inherits": "^2.0.1",
+            "minimalistic-assert": "^1.0.0",
+            "minimalistic-crypto-utils": "^1.0.0"
+          }
+        },
         "ethereumjs-block": {
           "version": "2.2.2",
           "resolved": "https://registry.npmjs.org/ethereumjs-block/-/ethereumjs-block-2.2.2.tgz",
@@ -6232,26 +6389,21 @@
           },
           "dependencies": {
             "ethereumjs-util": {
-              "version": "5.2.0",
-              "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.2.0.tgz",
-              "integrity": "sha512-CJAKdI0wgMbQFLlLRtZKGcy/L6pzVRgelIZqRqNbuVFM3K9VEnyfbcvz0ncWMRNCe4kaHWjwRYQcYMucmwsnWA==",
+              "version": "5.2.1",
+              "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.2.1.tgz",
+              "integrity": "sha512-v3kT+7zdyCm1HIqWlLNrHGqHGLpGYIhjeHxQjnDXjLT2FyGJDsd3LWMYUo7pAFRrk86CR3nUJfhC81CCoJNNGQ==",
               "requires": {
                 "bn.js": "^4.11.0",
                 "create-hash": "^1.1.2",
+                "elliptic": "^6.5.2",
+                "ethereum-cryptography": "^0.1.3",
                 "ethjs-util": "^0.1.3",
-                "keccak": "^1.0.2",
                 "rlp": "^2.0.0",
-                "safe-buffer": "^5.1.1",
-                "secp256k1": "^3.0.1"
+                "safe-buffer": "^5.1.1"
               }
             }
           }
         },
-        "ethereumjs-common": {
-          "version": "1.5.0",
-          "resolved": "https://registry.npmjs.org/ethereumjs-common/-/ethereumjs-common-1.5.0.tgz",
-          "integrity": "sha512-SZOjgK1356hIY7MRj3/ma5qtfr/4B5BL+G4rP/XSMYr2z1H5el4RX5GReYCKmQmYI/nSBmRnwrZ17IfHuG0viQ=="
-        },
         "ethereumjs-tx": {
           "version": "2.1.2",
           "resolved": "https://registry.npmjs.org/ethereumjs-tx/-/ethereumjs-tx-2.1.2.tgz",
@@ -6262,23 +6414,23 @@
           }
         },
         "ethereumjs-util": {
-          "version": "6.1.0",
-          "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-6.1.0.tgz",
-          "integrity": "sha512-URESKMFbDeJxnAxPppnk2fN6Y3BIatn9fwn76Lm8bQlt+s52TpG8dN9M66MLPuRAiAOIqL3dfwqWJf0sd0fL0Q==",
+          "version": "6.2.1",
+          "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-6.2.1.tgz",
+          "integrity": "sha512-W2Ktez4L01Vexijrm5EB6w7dg4n/TgpoYU4avuT5T3Vmnw/eCRtiBrJfQYS/DCSvDIOLn2k57GcHdeBcgVxAqw==",
           "requires": {
+            "@types/bn.js": "^4.11.3",
             "bn.js": "^4.11.0",
             "create-hash": "^1.1.2",
+            "elliptic": "^6.5.2",
+            "ethereum-cryptography": "^0.1.3",
             "ethjs-util": "0.1.6",
-            "keccak": "^1.0.2",
-            "rlp": "^2.0.0",
-            "safe-buffer": "^5.1.1",
-            "secp256k1": "^3.0.1"
+            "rlp": "^2.2.3"
           }
         },
         "rlp": {
-          "version": "2.2.4",
-          "resolved": "https://registry.npmjs.org/rlp/-/rlp-2.2.4.tgz",
-          "integrity": "sha512-fdq2yYCWpAQBhwkZv+Z8o/Z4sPmYm1CUq6P7n6lVTOdb949CnqA0sndXal5C1NleSVSZm6q5F3iEbauyVln/iw==",
+          "version": "2.2.6",
+          "resolved": "https://registry.npmjs.org/rlp/-/rlp-2.2.6.tgz",
+          "integrity": "sha512-HAfAmL6SDYNWPUOJNrM500x4Thn4PZsEy5pijPh40U9WfNk0z15hUYzO9xVIMAdIHdFtD8CBDHd75Td1g36Mjg==",
           "requires": {
             "bn.js": "^4.11.1"
           }
@@ -24044,15 +24196,6 @@
         "safe-buffer": "^5.1.0"
       }
     },
-    "keccakjs": {
-      "version": "0.2.3",
-      "resolved": "https://registry.npmjs.org/keccakjs/-/keccakjs-0.2.3.tgz",
-      "integrity": "sha512-BjLkNDcfaZ6l8HBG9tH0tpmDv3sS2mA7FNQxFHpCdzP3Gb2MVruXBSuoM66SnVxKJpAr5dKGdkHD+bDokt8fTg==",
-      "requires": {
-        "browserify-sha3": "^0.0.4",
-        "sha3": "^1.2.2"
-      }
-    },
     "keyv": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/keyv/-/keyv-4.0.1.tgz",
@@ -25331,6 +25474,11 @@
         "semver": "^5.4.1"
       }
     },
+    "node-addon-api": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/node-addon-api/-/node-addon-api-2.0.2.tgz",
+      "integrity": "sha512-Ntyt4AIXyaLIuMHF6IOoTakB3K+RWxwtsHNRxllEoA6vPwP9o4866g6YWDLUdnucilZhmkxiHwHr11gAENw+QA=="
+    },
     "node-fetch": {
       "version": "1.7.3",
       "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-1.7.3.tgz",
@@ -25340,6 +25488,11 @@
         "is-stream": "^1.0.1"
       }
     },
+    "node-gyp-build": {
+      "version": "4.2.3",
+      "resolved": "https://registry.npmjs.org/node-gyp-build/-/node-gyp-build-4.2.3.tgz",
+      "integrity": "sha512-MN6ZpzmfNCRM+3t57PTJHgHyw/h4OWnZ6mR8P5j/uZtqQr46RRuDE/P+g3n0YR/AiYXeWixZZzaip77gdICfRg=="
+    },
     "node-hid": {
       "version": "0.7.9",
       "resolved": "https://registry.npmjs.org/node-hid/-/node-hid-0.7.9.tgz",
@@ -26953,21 +27106,6 @@
         "safe-buffer": "^5.0.1"
       }
     },
-    "sha3": {
-      "version": "1.2.6",
-      "resolved": "https://registry.npmjs.org/sha3/-/sha3-1.2.6.tgz",
-      "integrity": "sha512-KgLGmJGrmNB4JWVsAV11Yk6KbvsAiygWJc7t5IebWva/0NukNrjJqhtKhzy3Eiv2AKuGvhZZt7dt1mDo7HkoiQ==",
-      "requires": {
-        "nan": "2.13.2"
-      },
-      "dependencies": {
-        "nan": {
-          "version": "2.13.2",
-          "resolved": "https://registry.npmjs.org/nan/-/nan-2.13.2.tgz",
-          "integrity": "sha512-TghvYc72wlMGMVMluVo9WRJc0mB8KxxF/gZ4YYFy7V2ZQX9l7rgbPg7vjS9mt6U5HXODVFVI2bOduCzwOMv/lw=="
-        }
-      }
-    },
     "shebang-command": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-1.2.0.tgz",
diff --git a/package.json b/package.json
index b368ccc17..eda187b79 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "timekeeper": "2.2.0"
   },
   "dependencies": {
-    "@0x/order-utils": "10.0.1",
+    "@0x/order-utils": "10.4.0",
     "@0x/subproviders": "6.1.0",
     "@0x/utils": "4.3.3",
     "@0x/web3-wrapper": "6.0.7",