.travis.yml in sidekiq-status-2.0.2 vs .travis.yml in sidekiq-status-2.1.0

@@ -4,9 +4,10 @@
   - 2.7
   - 3.0
   - ruby-head
 gemfile:
   - gemfiles/sidekiq_5.x.gemfile
+  - gemfiles/sidekiq_6.1.gemfile
   - gemfiles/sidekiq_6.x.gemfile
 before_install:
   - gem update --system
   - gem update bundler
 services: redis