language: ruby
rvm:
  - 2.1.5
  - 2.2.0
  - 2.3.0
before_install:
  - gem update --system
  - gem install bundler

language: ruby
rvm:
  - 2.1.8
  - 2.2.4
  - 2.3.1
before_install:
  - gem update --system
  - gem install bundler

Use slightly new versions of Ruby.
Use slightly new versions of Ruby.
