diff --git a/package.json b/package.json
index e5b41fb..ea5d2c3 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
 	},
 	"devDependencies": {
 		"@cloudflare/vitest-pool-workers": "^0.9.13",
-		"@cloudflare/workers-types": "^4.20250823.0",
+		"@cloudflare/workers-types": "^5.20260706.1",
 		"@eslint/eslintrc": "^3.3.1",
 		"@eslint/js": "^9.32.0",
 		"@types/node": "^24.3.0",
diff --git a/yarn.lock b/yarn.lock
index 6642eb1..daffe2c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -52,10 +52,10 @@
   resolved "https://registry.yarnpkg.com/@cloudflare/workerd-windows-64/-/workerd-windows-64-1.20251008.0.tgz#60abca6ebc53b1892b81e2e2f7081feb08b3413f"
   integrity sha512-Gm0RR+ehfNMsScn2pUcn3N9PDUpy7FyvV9ecHEyclKttvztyFOcmsF14bxEaSVv7iM4TxWEBn1rclmYHxDM4ow==
 
-"@cloudflare/workers-types@^4.20250823.0":
-  version "4.20250823.0"
-  resolved "https://registry.yarnpkg.com/@cloudflare/workers-types/-/workers-types-4.20250823.0.tgz#ccae233434acec0bcaaa2f73d27fd584d54bc7d0"
-  integrity sha512-z5pCggF3jG//h083+GEWCyQLW0A5GHq20akG+jN6ChyHQi/yZj1FcQcMhnvbBY4PiGq+SBiEj/LClG/lDPm+jg==
+"@cloudflare/workers-types@^5.20260706.1":
+  version "5.20260706.1"
+  resolved "https://registry.yarnpkg.com/@cloudflare/workers-types/-/workers-types-5.20260706.1.tgz#8ac29dc29c40c10d1a5d64698157c90d15ec120c"
+  integrity sha512-PdGrKyJMmKjrZs6xPN/LYN2zpKo9bgn8Iq3JLYho1/76t0HEfUYnssgUljqFxQYPzH4SZ8wsIThaGHmW5GZkLg==
 
 "@cspotcode/source-map-support@0.8.1":
   version "0.8.1"