diff --git a/docker-compose.yml b/docker-compose.yml
index 16f97f2..2dc6648 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,12 +1,12 @@
-version: '3.8'
+version: '3.3'
 
 services:
   library-manager:
     build:
       context: .
       dockerfile: Dockerfile
-    ports:
-      - "3000:3000"
+    expose:
+      - "3000"
     environment:
       - NODE_ENV=production
       - GOOGLE_BOOKS_API_KEY=${GOOGLE_BOOKS_API_KEY}
@@ -22,7 +22,7 @@ services:
     labels:
       - "traefik.enable=true"
       - "traefik.http.routers.library-manager.entrypoints=https"
-      - "traefik.http.routers.library-manager.rule=Host(`library.ghost.tel`)"
+      - "traefik.http.routers.library-manager.rule=Host(`lib.ghost.tel`)"
       - "traefik.http.routers.library-manager.tls.certresolver=http"
     networks:
       - web