language: ruby
cache: bundler
sudo: false
rvm:
  - 2.2.4
  - 2.3.0
script:
  - bin/rake test
  - bin/rubocop -D

language: ruby
cache: bundler
sudo: false
rvm:
  - 2.2.5
  - 2.3.1
script:
  - bin/rake test
  - bin/rubocop -D

Bump CI server Ruby versions.
Bump CI server Ruby versions.