diff --git a/mcp/package-lock.json b/mcp/package-lock.json
index 193fb392..cae08ae3 100644
--- a/mcp/package-lock.json
+++ b/mcp/package-lock.json
@@ -9,7 +9,7 @@
       "version": "0.1.0",
       "license": "MIT",
       "devDependencies": {
-        "@cloudflare/workers-types": "^5.20260911.1",
+        "@cloudflare/workers-types": "^5.20260918.1",
         "typescript": "^7.0.2",
         "wrangler": "^4.131.0",
         "yaml": "^2.6.0"
@@ -127,9 +127,9 @@
       }
     },
     "node_modules/@cloudflare/workers-types": {
-      "version": "5.20260911.1",
-      "resolved": "https://registry.npmjs.org/@cloudflare/workers-types/-/workers-types-5.20260911.1.tgz",
-      "integrity": "sha512-yiAvknjulcU85B3yB4aKOn9+l+garWP+AbHgsdCFckeRYDdhZ1rPULi64BDf52R3VTaKqxi47kF+o9ZbjsCt5g==",
+      "version": "5.20260918.1",
+      "resolved": "https://registry.npmjs.org/@cloudflare/workers-types/-/workers-types-5.20260918.1.tgz",
+      "integrity": "sha512-bUGc9gIdooYPi6lAUoB/eBXmy/ev9ok0XvDLzfJZQVCT8WCEQwv9f6smz6XeE83JzpX6ZSVi9CG1aDORnErYRQ==",
       "dev": true,
       "license": "MIT OR Apache-2.0"
     },
diff --git a/mcp/package.json b/mcp/package.json
index b9f4f6a9..ab36b93d 100644
--- a/mcp/package.json
+++ b/mcp/package.json
@@ -16,7 +16,7 @@
     "typecheck": "tsc --noEmit"
   },
   "devDependencies": {
-    "@cloudflare/workers-types": "^5.20260911.1",
+    "@cloudflare/workers-types": "^5.20260918.1",
     "typescript": "^7.0.2",
     "wrangler": "^4.131.0",
     "yaml": "^2.6.0"