diff --git a/frontend/next.config.js b/frontend/next.config.js
index 7236b14..e7c5b7f 100644
--- a/frontend/next.config.js
+++ b/frontend/next.config.js
@@ -23,7 +23,7 @@ module.exports = (phase, { defaultConfig }) => {
   const env = {
     RESTURL_BACKEND: (() => {
       if (isDev) return "http://localhost:9000/";
-      if (isProd) return "http://sef.today:9000/";
+      if (isProd) return "http://backend.sef.today:9000/";
       if (isStaging) return "http://localhost:11639/";
       return "RESTURL_BACKEND:not (isDev,isProd && !isStaging,isProd && isStaging)";
     })(),
diff --git a/frontend/utils/Cookies/config/config.json b/frontend/utils/Cookies/config/config.json
index 6ce8d4a..4d5339c 100644
--- a/frontend/utils/Cookies/config/config.json
+++ b/frontend/utils/Cookies/config/config.json
@@ -4,7 +4,7 @@
     "HTTP_ONLY": false
   },
   "production": {
-    "BACKEND_URL": "http://sef.today:9000/",
+    "BACKEND_URL": "http://backend.sef.today:9000/",
     "HTTP_ONLY": true
   }
 }