diff --git a/package-lock.json b/package-lock.json
index 2d0fa8f..8f89779 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,7 +13,7 @@
       },
       "devDependencies": {
         "@cloudflare/vitest-pool-workers": "^0.11.1",
-        "@cloudflare/workers-types": "^4.20251213.0",
+        "@cloudflare/workers-types": "^4.20251229.0",
         "eslint": "^9.39.2",
         "eslint-config-prettier": "^10.1.8",
         "eslint-plugin-jsdoc": "^61.5.0",
@@ -644,9 +644,9 @@
       }
     },
     "node_modules/@cloudflare/workers-types": {
-      "version": "4.20251221.0",
-      "resolved": "https://registry.npmjs.org/@cloudflare/workers-types/-/workers-types-4.20251221.0.tgz",
-      "integrity": "sha512-VVTEhY29TtwIwjBjpRrdT51Oqu0JlXijc5TiEKFCjwouUSn+5VhzoTSaz7UBjVOu4vfvcQmjqt/dzwBUR7c95w==",
+      "version": "4.20251229.0",
+      "resolved": "https://registry.npmjs.org/@cloudflare/workers-types/-/workers-types-4.20251229.0.tgz",
+      "integrity": "sha512-LgzxDZaT9bQhycQInf7S/fcZCQRTvWWQPE9xnEyedI+CXxWsXAD7hg84kvVyr+KUz+W9Oblzo75g6XZ3HdI5Yg==",
       "dev": true,
       "license": "MIT OR Apache-2.0"
     },
@@ -5004,6 +5004,7 @@
       "dev": true,
       "hasInstallScript": true,
       "license": "Apache-2.0",
+      "peer": true,
       "bin": {
         "workerd": "bin/workerd"
       },
diff --git a/package.json b/package.json
index f730fe9..c27f461 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   },
   "devDependencies": {
     "@cloudflare/vitest-pool-workers": "^0.11.1",
-    "@cloudflare/workers-types": "^4.20251213.0",
+    "@cloudflare/workers-types": "^4.20251229.0",
     "eslint": "^9.39.2",
     "eslint-config-prettier": "^10.1.8",
     "eslint-plugin-jsdoc": "^61.5.0",