docker-compose.yml in jabber_admin-0.2.0 vs docker-compose.yml in jabber_admin-1.0.0

@@ -4,10 +4,10 @@
     image: hausgold/ejabberd:18.01
     network_mode: bridge
     ports: ["4560", "5222", "5269", "5280", "5443"]
 
   test:
-    image: ruby:2.3
+    image: ruby:2.5
     network_mode: bridge
     working_dir: /app
     volumes:
       - .:/app
     links: