diff --git a/package-lock.json b/package-lock.json
index 13e764d..bf9d3a7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,7 +8,7 @@
       "name": "nodejs-worker-api",
       "version": "1.0.0",
       "devDependencies": {
-        "@cloudflare/workers-types": "^4.20240208.0",
+        "@cloudflare/workers-types": "^4.20250321.0",
         "@codecov/vite-plugin": "^1.6.0",
         "@eslint/js": "^9.17.0",
         "@vitest/coverage-v8": "^2.1.8",
@@ -238,10 +238,11 @@
       }
     },
     "node_modules/@cloudflare/workers-types": {
-      "version": "4.20241224.0",
-      "resolved": "https://registry.npmjs.org/@cloudflare/workers-types/-/workers-types-4.20241224.0.tgz",
-      "integrity": "sha512-1ZmFc8qqM7S/HUGmLplc4P8n8DoMqiJmc47r9Lr7VbuaotoqCXVljz09w1V1mc4K3pbFPgvqSy4XYStZ08HrlQ==",
-      "dev": true
+      "version": "4.20250321.0",
+      "resolved": "https://registry.npmjs.org/@cloudflare/workers-types/-/workers-types-4.20250321.0.tgz",
+      "integrity": "sha512-jPwtZJC7tVFOwFazuwq96be8haTnY9qik8hJ+oLFi50d9LTWPPrnrNHC4OxZmJTEcPIAy0y1WFZHe8C/b7xFXQ==",
+      "dev": true,
+      "license": "MIT OR Apache-2.0"
     },
     "node_modules/@codecov/bundler-plugin-core": {
       "version": "1.6.0",
diff --git a/package.json b/package.json
index 23642ae..2112b65 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "lint": "eslint src/"
   },
   "devDependencies": {
-    "@cloudflare/workers-types": "^4.20240208.0",
+    "@cloudflare/workers-types": "^4.20250321.0",
     "@codecov/vite-plugin": "^1.6.0",
     "@eslint/js": "^9.17.0",
     "@vitest/coverage-v8": "^2.1.8",