diff --git a/Dockerfile b/Dockerfile
index d3e0651..1fa6a17 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -29,7 +29,7 @@ FROM nginx:1.26-alpine3.19 AS runner
 WORKDIR /app
 
 # envs 配置
-ENV APP_API_URL http://localhost:50000
+ENV APP_API_URL localhost:50000
 
 # nginx配置文件
 COPY nginx.conf /etc/nginx/conf.d/default.conf.template
diff --git a/nginx.conf b/nginx.conf
index 83676f0..30a1a63 100644
--- a/nginx.conf
+++ b/nginx.conf
@@ -1,3 +1,7 @@
+upstream payment_backend {
+    server $APP_API_URL;
+}
+
 server {
     listen       80;
     listen  [::]:80;
@@ -22,7 +26,7 @@ server {
     }
 
     location ^~/api {
-        proxy_pass $APP_API_URL;
+        proxy_pass http://payment_backend;
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;