.travis.yml in lolcommits-sample_plugin-0.0.1 vs .travis.yml in lolcommits-sample_plugin-0.0.2

@@ -2,16 +2,17 @@
 language: ruby
 cache: bundler
 rvm:
  - 2.0.0
  - 2.1.10
- - 2.2.8
- - 2.3.5
- - 2.4.2
+ - 2.2.9
+ - 2.3.6
+ - 2.4.3
+ - 2.5.0
  - ruby-head
 
 before_install:
- - gem install bundler -v 1.13.7
+ - gem update --system
  - git --version
  - git config --global user.email "[e-mail]"
  - git config --global user.name "Lolcommits"
 
 matrix: