diff --git a/Smartes-Klassenzimmer-Backend/src/main.ts b/Smartes-Klassenzimmer-Backend/src/main.ts
index 0ce2f79..d197e06 100644
--- a/Smartes-Klassenzimmer-Backend/src/main.ts
+++ b/Smartes-Klassenzimmer-Backend/src/main.ts
@@ -14,7 +14,7 @@ async function bootstrap() {
       'http://127.0.0.1:5173',     // Vite Dev Server (Alternative)
       'http://localhost:5500',
       'http://127.0.0.1:5500',
-      'http://localhost:3000'
+      'http://localhost'
     ],
     credentials: true,
     methods: ['GET', 'POST', 'PUT', 'DELETE', 'PATCH', 'OPTIONS'],