message: MINOR: Don't downgrade yarn in Travis CI
diff: @@ -17,10 +17,7 @@ branches:
  env:
  - DETECT_CHROMEDRIVER_VERSION=true
  -# upgrade yarn to a more recent version
  before_install:
  - - curl -o- -L https://yarnpkg.com/install.sh | bash -s -- --version 1.13.0
  - - export PATH="$HOME/.yarn/bin:$PATH"
  - yarn global add codecov
  jobs:
  