diff --git a/package.json b/package.json
index 190e4d1..e0c7dec 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": "^4.20260504.1",
     "typescript": "^6.0.2"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index eeac98f..8b4c28a 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@^4.20260504.1":
+  version "4.20260504.1"
+  resolved "https://registry.yarnpkg.com/@cloudflare/workers-types/-/workers-types-4.20260504.1.tgz#d27436f32e6d03aa6f349f9346c0e004cbabb2b8"
+  integrity sha512-x/7BzBXSGBQS0wHdaY0/1bcaRszkkhCjTc5maQvNSHu/pTVdBF2f/L41W8pRSJJSbLL80ynW7O923O7v3PaLtg==
 
 typescript@^6.0.2:
   version "6.0.2"