diff --git a/injected/package.json b/injected/package.json
index 12a80ad355..b4dd6b7aa5 100644
--- a/injected/package.json
+++ b/injected/package.json
@@ -42,7 +42,7 @@
     "@types/jasmine": "^5.1.8",
     "@types/node": "^24.0.3",
     "@typescript-eslint/eslint-plugin": "^8.38.0",
-    "fast-check": "^4.1.1",
+    "fast-check": "^4.2.0",
     "jasmine": "^5.9.0",
     "web-ext": "^8.9.0"
   }
diff --git a/package-lock.json b/package-lock.json
index 314c524454..73c505f421 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -52,7 +52,7 @@
         "@types/jasmine": "^5.1.8",
         "@types/node": "^24.0.3",
         "@typescript-eslint/eslint-plugin": "^8.38.0",
-        "fast-check": "^4.1.1",
+        "fast-check": "^4.2.0",
         "jasmine": "^5.9.0",
         "web-ext": "^8.9.0"
       }
@@ -5014,9 +5014,9 @@
       "license": "MIT"
     },
     "node_modules/fast-check": {
-      "version": "4.1.1",
-      "resolved": "https://registry.npmjs.org/fast-check/-/fast-check-4.1.1.tgz",
-      "integrity": "sha512-8+yQYeNYqBfWem0Nmm7BUnh27wm+qwGvI0xln60c8RPM5rVekxZf/Ildng2GNBfjaG6utIebFmVBPlNtZlBLxg==",
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/fast-check/-/fast-check-4.2.0.tgz",
+      "integrity": "sha512-buxrKEaSseOwFjt6K1REcGMeFOrb0wk3cXifeMAG8yahcE9kV20PjQn1OdzPGL6OBFTbYXfjleNBARf/aCfV1A==",
       "dev": true,
       "funding": [
         {
@@ -10910,7 +10910,7 @@
       "devDependencies": {
         "@duckduckgo/messaging": "*",
         "chokidar": "^4.0.3",
-        "fast-check": "^4.1.1",
+        "fast-check": "^4.2.0",
         "http-server": "^14.1.1",
         "web-resource-inliner": "^6.0.1"
       }
diff --git a/special-pages/package.json b/special-pages/package.json
index 6851cfd2c8..7a2db63a07 100644
--- a/special-pages/package.json
+++ b/special-pages/package.json
@@ -30,7 +30,7 @@
   "devDependencies": {
     "@duckduckgo/messaging": "*",
     "chokidar": "^4.0.3",
-    "fast-check": "^4.1.1",
+    "fast-check": "^4.2.0",
     "http-server": "^14.1.1",
     "web-resource-inliner": "^6.0.1"
   },