language: ruby
rvm:
  - 2.2
  - 2.3
  - 2.4
  - 2.5
  - jruby-9.1.15.0

language: ruby
before_install:
  - gem update --system
rvm:
  - 2.2
  - 2.3
  - 2.4
  - 2.5
  - jruby-9.1.15.0

Fix CI for Ruby 2.5.0
Fix CI for Ruby 2.5.0

Reference travis-ci/travis-ci#8978
