diff --git a/services/nginx/conf-prod.conf b/services/nginx/conf-prod.conf
index f56ae70879..ac7f22dcbb 100644
--- a/services/nginx/conf-prod.conf
+++ b/services/nginx/conf-prod.conf
@@ -37,7 +37,7 @@ http {
 		}
 
 		location ~ ^/mailer(?:/(.*))?$ {
-			proxy_pass http://127.0.0.1:3003/$1$is_args$args;
+			proxy_pass http://mailer:3003/$1$is_args$args;
 		}
 	}
 }
\ No newline at end of file