sample_app/config/mongoid.yml in slack-ruby-bot-server-0.4.0 vs sample_app/config/mongoid.yml in slack-ruby-bot-server-0.5.0

@@ -19,9 +19,9 @@
     use_utc: true
 
 production:
   clients:
     default:
-      uri: <%= ENV['MONGO_URL'] || ENV['MONGOHQ_URI'] || ENV['MONGOLAB_URI'] %>
+      uri: <%= ENV['MONGO_URL'] || ENV['MONGOHQ_URI'] || ENV['MONGOLAB_URI'] || ENV['MONGODB_URI'] %>
   options:
     raise_not_found_error: false
     use_utc: true