.travis.yml in manageiq-api-client-0.3.2 vs .travis.yml in manageiq-api-client-0.3.3

@@ -1,9 +1,7 @@
 language: ruby
 rvm:
-  - 2.2.7
-  - 2.3.1
-  - 2.4.2
+  - 2.4.5
+  - 2.5.3
 sudo: false
 cache: bundler
-before_install: gem install bundler -v 1.12.5
 after_script: bundle exec codeclimate-test-reporter