diff --git a/scripts/nginx.conf b/scripts/nginx.conf
index caf2d4f..fba4a25 100644
--- a/scripts/nginx.conf
+++ b/scripts/nginx.conf
@@ -34,7 +34,7 @@ http {
 
     # 代理 API 请求到后端容器
     location /admin-api/ {
-      proxy_pass http://127.0.0.1:48080;
+      proxy_pass http://alert-backend:48080;
       proxy_set_header Host $host;
       proxy_set_header X-Real-IP $remote_addr;
       proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;