diff --git a/packages/@uppy/companion/package.json b/packages/@uppy/companion/package.json
index 71a853a8d3..0d73a79acb 100644
--- a/packages/@uppy/companion/package.json
+++ b/packages/@uppy/companion/package.json
@@ -74,7 +74,7 @@
     "tus-js-client": "4.3.1",
     "validator": "13.15.35",
     "webdav": "5.10.0",
-    "ws": "8.20.1",
+    "ws": "8.21.0",
     "zod": "4.4.3"
   },
   "devDependencies": {
diff --git a/yarn.lock b/yarn.lock
index cdb4fe9f21..f2b29a8dc4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9175,7 +9175,7 @@ __metadata:
     validator: "npm:13.15.35"
     vitest: "npm:4.1.6"
     webdav: "npm:5.10.0"
-    ws: "npm:8.20.1"
+    ws: "npm:8.21.0"
     zod: "npm:4.4.3"
   bin:
     companion: ./dist/bin/companion.js
@@ -24551,9 +24551,9 @@ __metadata:
   languageName: node
   linkType: hard
 
-"ws@npm:8.20.1, ws@npm:^8.19.0":
-  version: 8.20.1
-  resolution: "ws@npm:8.20.1"
+"ws@npm:8.21.0":
+  version: 8.21.0
+  resolution: "ws@npm:8.21.0"
   peerDependencies:
     bufferutil: ^4.0.1
     utf-8-validate: ">=5.0.2"
@@ -24562,7 +24562,7 @@ __metadata:
       optional: true
     utf-8-validate:
       optional: true
-  checksum: 10/8c4d2b06dc65381b6bfab1f2e584275dabd30a99a5ce058b4dc76f3d03fad1921cef3a21d8f53127d30a808cfd1864aa2fe6890a5d43359f682457315baec873
+  checksum: 10/088411956432c8f876158409d5a285cb9ad1382f593391f51d3a599bd0a5b277f876609ebd00fc3596321c4a4c9064d6fffe1ebad960e8ea7fd9ae25324f35c2
   languageName: node
   linkType: hard
 
@@ -24596,6 +24596,21 @@ __metadata:
   languageName: node
   linkType: hard
 
+"ws@npm:^8.19.0":
+  version: 8.20.1
+  resolution: "ws@npm:8.20.1"
+  peerDependencies:
+    bufferutil: ^4.0.1
+    utf-8-validate: ">=5.0.2"
+  peerDependenciesMeta:
+    bufferutil:
+      optional: true
+    utf-8-validate:
+      optional: true
+  checksum: 10/8c4d2b06dc65381b6bfab1f2e584275dabd30a99a5ce058b4dc76f3d03fad1921cef3a21d8f53127d30a808cfd1864aa2fe6890a5d43359f682457315baec873
+  languageName: node
+  linkType: hard
+
 "ws@npm:~8.17.1":
   version: 8.17.1
   resolution: "ws@npm:8.17.1"