.travis.yml in sidekiq-status-0.5.4 vs .travis.yml in sidekiq-status-0.6.0

@@ -1,15 +1,16 @@
 language: ruby
 rvm:
   - 2.0
   - 2.1
   - 2.2
-  - jruby
   - rbx-2
 gemfile:
   - gemfiles/Gemfile.sidekiq-2
   - Gemfile
+before_install:
+  - gem update --system
+  - gem update bundler
 services: redis
 matrix:
   allow_failures:
-    - rvm: jruby
     - rvm: rbx-2