diff --git a/mcp/package-lock.json b/mcp/package-lock.json
index 12d59993..007e6a05 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": "^5.20260719.1",
+        "@cloudflare/workers-types": "^5.20260727.1",
         "typescript": "^7.0.2",
         "wrangler": "^4.114.0",
         "yaml": "^2.6.0"
diff --git a/mcp/package.json b/mcp/package.json
index 1c0e4fed..516946e9 100644
--- a/mcp/package.json
+++ b/mcp/package.json
@@ -14,7 +14,7 @@
     "typecheck": "tsc --noEmit"
   },
   "devDependencies": {
-    "@cloudflare/workers-types": "^5.20260719.1",
+    "@cloudflare/workers-types": "^5.20260727.1",
     "typescript": "^7.0.2",
     "wrangler": "^4.114.0",
     "yaml": "^2.6.0"