.travis.yml in howitzer-2.0.3 vs .travis.yml in howitzer-2.1.0

- old
+ new

@@ -1,7 +1,7 @@ language: ruby before_install: - gem install bundler rvm: - - 2.2.7 - - 2.3.4 - - 2.4.1 + - 2.2.8 + - 2.3.5 + - 2.4.2