diff --git a/package-lock.json b/package-lock.json
index c40baeaa2..c031a120a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1208,9 +1208,9 @@
       }
     },
     "node_modules/@cloudflare/workers-types": {
-      "version": "4.20251001.0",
-      "resolved": "https://registry.npmjs.org/@cloudflare/workers-types/-/workers-types-4.20251001.0.tgz",
-      "integrity": "sha512-MXseDjmqL1hIdQCqwHDMG8SE60W4FdwqLsofZjo/KtLH9zFcoQfZkCYyQrdfEJINiSoNJjrup7WR6KsqiFUSsg==",
+      "version": "4.20260501.1",
+      "resolved": "https://registry.npmjs.org/@cloudflare/workers-types/-/workers-types-4.20260501.1.tgz",
+      "integrity": "sha512-B/VX2w3my/sCqxKyWOX7SxUpFC1uD8Gh7I2zbI1d3zA8p7Tx03AFsnuEx8lYLmcd8yONAA93YsAZb1wAaLK83w==",
       "dev": true,
       "license": "MIT OR Apache-2.0"
     },
@@ -12851,7 +12851,7 @@
         "@connectrpc/connect-node": "2.1.1"
       },
       "devDependencies": {
-        "@cloudflare/workers-types": "^4.20250831.0",
+        "@cloudflare/workers-types": "^4.20260501.1",
         "@connectrpc/connect-conformance": "^2.1.1",
         "tsx": "^4.20.6",
         "wrangler": "^4.40.3"
diff --git a/packages/connect-cloudflare/package.json b/packages/connect-cloudflare/package.json
index 51ff2bce0..6719d801b 100644
--- a/packages/connect-cloudflare/package.json
+++ b/packages/connect-cloudflare/package.json
@@ -16,7 +16,7 @@
   },
   "devDependencies": {
     "wrangler": "^4.40.3",
-    "@cloudflare/workers-types": "^4.20250831.0",
+    "@cloudflare/workers-types": "^4.20260501.1",
     "tsx": "^4.20.6",
     "@connectrpc/connect-conformance": "^2.1.1"
   }