language: ruby

rvm:
  - 1.9.3
  - 2.0.0
  - 2.1
  - 2.2
  - 2.3
  - 2.4
  - 2.5
  - jruby

before_install:
  - gem install bundler

script:
  - rake spec

language: ruby

rvm:
  - 2.3
  - 2.4
  - 2.5
  - 2.6
  - 2.7
  - jruby

before_install:
  - gem install bundler

script:
  - rake spec

Fix CI: drop old Ruby versions and add new ones
Fix CI: drop old Ruby versions and add new ones

There is `gem install bundler`, and Bundler requires Ruby `>= 2.3`.
