.travis.yml in log_tribe-0.2.8 vs .travis.yml in log_tribe-0.2.9

@@ -1,6 +1,6 @@
 language: ruby
 rvm:
   - 2.0.0
   - 2.1.6
-  - 2.2.3
+  - 2.2.4
 script: bundle exec rspec spec