diff --git a/backend/vercel.json b/backend/vercel.json
index 10a307c..efbb1da 100644
--- a/backend/vercel.json
+++ b/backend/vercel.json
@@ -13,20 +13,25 @@
   ],
   "headers": [
     {
-      "key": "Access-Control-Allow-Credentials",
-      "value": "true"
-    },
-    {
-      "key": "Access-Control-Allow-Origin",
-      "value": "*"
-    },
-    {
-      "key": "Access-Control-Allow-Methods",
-      "value": "GET,POST"
-    },
-    {
-      "key": "Access-Control-Allow-Headers",
-      "value": "X-CSRF-Token, X-Requested-With, Accept, Accept-Version, Content-Length, Content-MD5, Content-Type, Date, X-Api-Version"
+      "source": "/(.*)",
+      "headers": [
+        {
+          "key": "Access-Control-Allow-Credentials",
+          "value": "true"
+        },
+        {
+          "key": "Access-Control-Allow-Origin",
+          "value": "*"
+        },
+        {
+          "key": "Access-Control-Allow-Methods",
+          "value": "GET,POST"
+        },
+        {
+          "key": "Access-Control-Allow-Headers",
+          "value": "X-CSRF-Token, X-Requested-With, Accept, Accept-Version, Content-Length, Content-MD5, Content-Type, Date, X-Api-Version"
+        }
+      ]
     }
   ]
 }