diff --git a/package.json b/package.json
index ae44b39..2b7da54 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "react": "^16.13.1",
     "react-dom": "^16.13.1",
     "react-scripts": "3.4.1",
-    "typescript": "~3.9.7",
+    "typescript": "~4.3.4",
     "uuid": "^8.3.1"
   },
   "devDependencies": {
diff --git a/yarn.lock b/yarn.lock
index 78c13f5..3336826 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1239,6 +1239,16 @@
     "@types/istanbul-reports" "^1.1.1"
     "@types/yargs" "^13.0.0"
 
+"@jest/types@^25.5.0":
+  version "25.5.0"
+  resolved "https://registry.yarnpkg.com/@jest/types/-/types-25.5.0.tgz#4d6a4793f7b9599fc3680877b856a97dbccf2a9d"
+  integrity sha512-OXD0RgQ86Tu3MazKo8bnrkDRaDXXMGUqd+kTtLtK1Zb7CRzQcaSRPPPV37SvYTdevXEBVxe0HXylEjs8ibkmCw==
+  dependencies:
+    "@types/istanbul-lib-coverage" "^2.0.0"
+    "@types/istanbul-reports" "^1.1.1"
+    "@types/yargs" "^15.0.0"
+    chalk "^3.0.0"
+
 "@jest/types@^26.3.0":
   version "26.3.0"
   resolved "https://registry.yarnpkg.com/@jest/types/-/types-26.3.0.tgz#97627bf4bdb72c55346eef98e3b3f7ddc4941f71"
@@ -1249,6 +1259,7 @@
     "@types/node" "*"
     "@types/yargs" "^15.0.0"
     chalk "^4.0.0"
+
 "@jsdevtools/ono@^7.1.3":
   version "7.1.3"
   resolved "https://registry.yarnpkg.com/@jsdevtools/ono/-/ono-7.1.3.tgz#9df03bbd7c696a5c58885c34aa06da41c8543796"
@@ -1428,17 +1439,10 @@
     "@svgr/plugin-svgo" "^4.3.1"
     loader-utils "^1.2.3"
 
-"@testing-library/dom@^7.24.2":
-  version "7.24.2"
-  resolved "https://registry.yarnpkg.com/@testing-library/dom/-/dom-7.24.2.tgz#6d2b7dd21efbd5358b98c2777fc47c252f3ae55e"
-  integrity sha512-ERxcZSoHx0EcN4HfshySEWmEf5Kkmgi+J7O79yCJ3xggzVlBJ2w/QjJUC+EBkJJ2OeSw48i3IoePN4w8JlVUIA==
 "@szmarczak/http-timer@^1.1.2":
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/@szmarczak/http-timer/-/http-timer-1.1.2.tgz#b1665e2c461a2cd92f4c1bbf50d5454de0d4b421"
   integrity sha512-XIB2XbzHTN6ieIjfIMV9hlVcfPU26s2vafYWQcZHWXHOxiaRZYEDKEwdl129Zyg50+foYV2jCgtrqSA6qNuNSA==
-  dependencies:
-    defer-to-connect "^1.0.1"
-
   dependencies:
     "@babel/code-frame" "^7.10.4"
     "@babel/runtime" "^7.10.3"
@@ -1448,6 +1452,11 @@
     dom-accessibility-api "^0.5.1"
     pretty-format "^26.4.2"
 
+"@testing-library/dom@^7.24.2":
+  version "7.24.2"
+  resolved "https://registry.yarnpkg.com/@testing-library/dom/-/dom-7.24.2.tgz#6d2b7dd21efbd5358b98c2777fc47c252f3ae55e"
+  integrity sha512-ERxcZSoHx0EcN4HfshySEWmEf5Kkmgi+J7O79yCJ3xggzVlBJ2w/QjJUC+EBkJJ2OeSw48i3IoePN4w8JlVUIA==
+
 "@testing-library/jest-dom@^5.11.4":
   version "5.11.4"
   resolved "https://registry.yarnpkg.com/@testing-library/jest-dom/-/jest-dom-5.11.4.tgz#f325c600db352afb92995c2576022b35621ddc99"
@@ -1565,6 +1574,14 @@
   dependencies:
     "@types/istanbul-lib-coverage" "*"
 
+"@types/istanbul-reports@^1.1.1":
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/@types/istanbul-reports/-/istanbul-reports-1.1.2.tgz#e875cc689e47bce549ec81f3df5e6f6f11cfaeb2"
+  integrity sha512-P/W9yOX/3oPZSpaYOCQzGqgCQRXn0FFO/V8bWrCQs+wLmvVVxk6CRBXALEvNs9OHIatlnlFokfhuDo2ug01ciw==
+  dependencies:
+    "@types/istanbul-lib-coverage" "*"
+    "@types/istanbul-lib-report" "*"
+
 "@types/istanbul-reports@^3.0.0":
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/@types/istanbul-reports/-/istanbul-reports-3.0.0.tgz#508b13aa344fa4976234e75dddcc34925737d821"
@@ -4086,11 +4103,6 @@ defaults@^1.0.3:
   dependencies:
     clone "^1.0.2"
 
-defer-to-connect@^1.0.1:
-  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/defer-to-connect/-/defer-to-connect-1.1.3.tgz#331ae050c08dcf789f8c83a7b81f0ed94f4ac591"
-  integrity sha512-0ISdNousHvZT2EiFlZeZAHBUvSxmKswVCEf8hW7KWgG4a8MVEu/3Vb6uWYozkjylyCxe0JBIiRB1jV45S70WVQ==
-
 define-properties@^1.1.2, define-properties@^1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/define-properties/-/define-properties-1.1.3.tgz#cf88da6cbee26fe6db7094f61d870cbd84cee9f1"
@@ -12218,10 +12230,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@~3.9.7:
-  version "3.9.7"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.7.tgz#98d600a5ebdc38f40cb277522f12dc800e9e25fa"
-  integrity sha512-BLbiRkiBzAwsjut4x/dsibSTB6yWpwT5qWmC2OfuCg3GgVQCSgMs4vEctYPhsaGtd0AeuuHMkjZ2h2WG8MSzRw==
+typescript@~4.3.4:
+  version "4.3.4"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.3.4.tgz#3f85b986945bcf31071decdd96cf8bfa65f9dcbc"
+  integrity sha512-uauPG7XZn9F/mo+7MrsRjyvbxFpzemRjKEZXS4AK83oP2KKOJPvb+9cO/gmnv8arWZvhnjVOXz7B49m1l0e9Ew==
 
 unicode-canonical-property-names-ecmascript@^1.0.4:
   version "1.0.4"