diff --git a/package.json b/package.json
index 190e4d1..a9a5fff 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
   "type": "module",
   "module": "./dist/index.mjs",
   "devDependencies": {
-    "@cloudflare/workers-types": "^4.20260329.1",
+    "@cloudflare/workers-types": "^4.20260511.1",
     "typescript": "^6.0.2"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index eeac98f..f13dec3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,10 +2,10 @@
 # yarn lockfile v1
 
 
-"@cloudflare/workers-types@^4.20260329.1":
-  version "4.20260329.1"
-  resolved "https://registry.yarnpkg.com/@cloudflare/workers-types/-/workers-types-4.20260329.1.tgz#e222c777814d0bf05be7ff22e9e41b1450d53083"
-  integrity sha512-LxBHrYYI/AZ6OCbUzRqRgg6Rt1qev2KxN2NNd3saye41AO2g52cYvHV+ohts5oPnrIUD7YRjbgN/J3NU7e7m5A==
+"@cloudflare/workers-types@^4.20260511.1":
+  version "4.20260511.1"
+  resolved "https://registry.yarnpkg.com/@cloudflare/workers-types/-/workers-types-4.20260511.1.tgz#964e5bbd0b41e08d19b3ef94199782efd6809345"
+  integrity sha512-FA+si7cOq9i/gtCHhIc0XJL0l1F/ApF+m00752Aj7WZFJrj3ZulT2T8/+rT3BabMT0QEnqFEGIqCgrmqhgEfMg==
 
 typescript@^6.0.2:
   version "6.0.2"