diff --git a/mta-sts-worker/package-lock.json b/mta-sts-worker/package-lock.json
index ed79e3b..fdcfdeb 100644
--- a/mta-sts-worker/package-lock.json
+++ b/mta-sts-worker/package-lock.json
@@ -8,7 +8,7 @@
       "name": "mta-sts-cortech",
       "version": "1.0.0",
       "devDependencies": {
-        "@cloudflare/workers-types": "^4.20260511.1",
+        "@cloudflare/workers-types": "^4.20260521.1",
         "wrangler": "^4.92.0"
       }
     },
@@ -124,9 +124,9 @@
       }
     },
     "node_modules/@cloudflare/workers-types": {
-      "version": "4.20260516.1",
-      "resolved": "https://registry.npmjs.org/@cloudflare/workers-types/-/workers-types-4.20260516.1.tgz",
-      "integrity": "sha512-aPckyZSPQXhOo+nSIvGLtXVl9M2qmf2GwFZYmvut9z47F1XTjHYcaYpI9/BvxrI+Q5l99UtXZU4bmQtX10JG+w==",
+      "version": "4.20260521.1",
+      "resolved": "https://registry.npmjs.org/@cloudflare/workers-types/-/workers-types-4.20260521.1.tgz",
+      "integrity": "sha512-cerUUdckXWiNm0x0XEIomBkr58xja5hn/1F9wzzDfJTE96L98L/Ra0ToTxKfzsXLklPflOagce8Vhg0vx8Ytgw==",
       "dev": true,
       "license": "MIT OR Apache-2.0"
     },
diff --git a/mta-sts-worker/package.json b/mta-sts-worker/package.json
index 4b57fa2..4201956 100644
--- a/mta-sts-worker/package.json
+++ b/mta-sts-worker/package.json
@@ -8,7 +8,7 @@
     "deploy": "wrangler deploy"
   },
   "devDependencies": {
-    "@cloudflare/workers-types": "^4.20260511.1",
+    "@cloudflare/workers-types": "^4.20260521.1",
     "wrangler": "^4.92.0"
   }
 }