language: ruby
before_install:
  - gem update bundler
rvm:
  - 2.0.0
  - 2.1.10
  - 2.2.7
  - 2.3.4
  - 2.4.1
  - jruby-9.1.9.0

language: ruby
before_install:
  - gem update --system # Need for Ruby 2.5.0. https://github.com/travis-ci/travis-ci/issues/8978
  - gem update bundler
rvm:
  - 2.0.0
  - 2.1.10
  - 2.2.9
  - 2.3.6
  - 2.4.3
  - 2.5.0
  - jruby-9.1.15.0

Update Ruby versions on Travis CI
Update Ruby versions on Travis CI
