language: ruby
sudo: false
cache: bundler
rvm:
  - 2.6
  - 2.5
  - 2.4
  - 2.3
before_install: "gem update --system" # https://github.com/travis-ci/travis-ci/issues/8974

language: ruby
sudo: false
cache: bundler
rvm:
  - 2.6
  - 2.5
  - 2.4
  - 2.3

Remove `gem up --sys` from CI build
Remove `gem up --sys` from CI build
