.travis.yml in light_operations-1.2.3 vs .travis.yml in light_operations-1.2.5

@@ -1,5 +1,5 @@
 language: ruby
 script: bundle exec rake
 rvm:
-  - 2.1.4
-  - 2.2.0
+  - 2.2.5
+  - 2.4.1