diff --git a/config/nginx/proxy_lb.conf b/config/nginx/proxy_lb.conf
index a7be556..498b199 100644
--- a/config/nginx/proxy_lb.conf
+++ b/config/nginx/proxy_lb.conf
@@ -1,3 +1,7 @@
+upstream backend {
+    server app:3000;
+}
+
 server {
     listen 80;
 
@@ -15,7 +19,7 @@ server {
 
     # reverse proxy
     location / {
-        proxy_pass                         http://app:3000$request_uri;
+        proxy_pass                         http://backend$request_uri;
         proxy_set_header Host              $host;
         proxy_http_version                 1.1;