language: ruby
sudo: false
cache: bundler
rvm:
  - 2.2.10
  - 2.3.7
  - 2.4.4
  - 2.5.1

language: ruby
sudo: false
cache: bundler
before_install:
  - gem update --system
  - gem install bundler
rvm:
  - 2.2.10
  - 2.3.7
  - 2.4.4
  - 2.5.1

Update rubygems to fix Travis failure.
Update rubygems to fix Travis failure.
