diff --git a/docker-compose.yml b/docker-compose.yml
index e208f73..5fff638 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -10,7 +10,7 @@ services:
       - ./:/app
       - '/app/node_modules'
     ports:
-      - 3040:3040
+      - ${MERMS_SOCKET_PORT}:5005
     environment:
       - PORT=${MERMS_SOCKET_PORT}
       - POSTGRE_URL=${MERMS_POSTGRE_URL}