diff --git a/docker-compose.yml b/docker-compose.yml
index 4382451795..6cd5f333a6 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -72,11 +72,14 @@ services:
       - POSTGRES_DB=${POSTGRES_DB:?error}
       - POSTGRES_PASSWORD=${POSTGRES_PASSWORD:?error}
       - POSTGRES_USER=${POSTGRES_USER:?error}
+      - PGPORT=${POSTGRES_PORT:-5432}
     networks:
       - "polis-net"
     volumes:
       - "backups:/backups"
       - "postgres:/var/lib/postgresql/data"
+    expose:
+      - ${POSTGRES_PORT:-5432}
 
   nginx-proxy:
     image: docker.io/compdem/polis-nginx-proxy:${TAG:-dev}