diff --git a/vercel.json b/vercel.json
index 414cf69..1ef8102 100644
--- a/vercel.json
+++ b/vercel.json
@@ -15,9 +15,10 @@
             "source": "/api/:path*",
             "destination": "/api/:path*",
             "headers": [
+                { "key": "Access-Control-Allow-Credentials", "value": "true" },
                 { "key": "Access-Control-Allow-Origin", "value": "*" },
-                { "key": "Access-Control-Allow-Methods", "value": "GET,OPTIONS" },
-                { "key": "Access-Control-Allow-Headers", "value": "X-Requested-With,content-type" }
+                { "key": "Access-Control-Allow-Methods", "value": "GET,OPTIONS,PATCH,DELETE,POST,PUT" },
+                { "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" }
             ]
         }
     ]