Merge pull request #596 from torhoehn/feature/redis-update

compose/docker-compose.yml

@@ -53,7 +53,7 @@ services:
     extra_hosts: *appextrahosts
 
   redis:
-    image: redis:5.0-alpine
+    image: redis:6.0-alpine
     ports:
       - "6379:6379"
     extra_hosts: *appextrahosts