diff --git a/docker-compose.yml b/docker-compose.yml
index c214d94..1079808 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -12,7 +12,7 @@ services:
     volumes:
       - postgres_data:/var/lib/postgresql/data
     ports:
-      - "5432:5432"
+      - "${DB_PORT:-15433}:5432"
     healthcheck:
       test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER:-botuser}"]
       interval: 10s