rvm:
  - 1.9.3
  - 2.1.0
  - 2.2.0
sudo: false

rvm:
  - 1.9.3
  - 2.1.9
  - 2.2.5
  - 2.3.1
  - 2.4.0-preview1
sudo: false

Update the rubies we test against
(chore): Update the rubies we test against

Test against the latest patch version of each
