diff --git a/conf/nginx.conf b/conf/nginx.conf
index 30bfdb0..898b7f4 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -40,7 +40,7 @@ if ($unsafe) {
 }
 more_set_headers "Content-Security-Policy: default-src 'none'; child-src $childSrc; worker-src $workerSrc; media-src $mediaSrc; style-src $styleSrc; script-src $scriptSrc; connect-src $connectSrc; font-src $fontSrc; img-src $imgSrc; frame-src $frameSrc; frame-ancestors $frameAncestors";
 location ^~ /cryptpad_websocket {
-    proxy_pass http://localhost:3000;
+    proxy_pass http://127.0.0.1:__PORT__;
     proxy_set_header X-Real-IP $remote_addr;
     proxy_set_header Host $host;
     proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
@@ -56,7 +56,7 @@ location ^~ /customize/ {
     try_files /customize/$uri /customize.dist/$uri;
 }
 location ~ ^/api/.*$ {
-    proxy_pass http://localhost:3000;
+    proxy_pass http://127.0.0.1:__PORT__;
     proxy_set_header X-Real-IP $remote_addr;
     proxy_set_header Host $host;
     proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;