diff --git a/package-lock.json b/package-lock.json
index c55b2f380..c2fd77ad0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "1.0.0",
       "license": "MIT",
       "devDependencies": {
-        "@cloudflare/workers-types": "4.20260415.1",
+        "@cloudflare/workers-types": "4.20260418.1",
         "@types/jest": "30.0.0",
         "@types/service-worker-mock": "2.0.4",
         "@typescript-eslint/eslint-plugin": "8.58.2",
@@ -658,9 +658,9 @@
       }
     },
     "node_modules/@cloudflare/workers-types": {
-      "version": "4.20260415.1",
-      "resolved": "https://registry.npmjs.org/@cloudflare/workers-types/-/workers-types-4.20260415.1.tgz",
-      "integrity": "sha512-9sEq9cZzr4s075U/TfjvdSmiX+u2NMOAIcFcCfd24FDtPfR7Iw3SbuQxkcgtpx/Bvg0au9PmQ0ZJfBaIitG0gw==",
+      "version": "4.20260418.1",
+      "resolved": "https://registry.npmjs.org/@cloudflare/workers-types/-/workers-types-4.20260418.1.tgz",
+      "integrity": "sha512-bywXb2XmeSqrLCQYipcupLneqx015YhhNWz2v9b9iatpe8Cg551vP7ZuD5S2a6GfBka0dDnO70kIBiBvFglcrg==",
       "dev": true,
       "license": "MIT OR Apache-2.0"
     },
diff --git a/package.json b/package.json
index b08b3d39e..3b64c0e6f 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
     ]
   },
   "devDependencies": {
-    "@cloudflare/workers-types": "4.20260415.1",
+    "@cloudflare/workers-types": "4.20260418.1",
     "@types/jest": "30.0.0",
     "@types/service-worker-mock": "2.0.4",
     "@typescript-eslint/eslint-plugin": "8.58.2",