diff --git a/core_composer/docker-compose.yml b/core_composer/docker-compose.yml
index 976cb63..3733b4c 100644
--- a/core_composer/docker-compose.yml
+++ b/core_composer/docker-compose.yml
@@ -6,7 +6,7 @@ services:
     env_file:
       - .env.core
     ports:
-      - "4500"
+      - "${APP_PORT:-4500}:5000"
     environment:
       - FLASK_APP=wsgi.py
       - FLASK_ENV=production