message: Update Yarn version in CI.
diff: @@ -10,6 +10,9 @@ node_js:
  matrix:
  allow_failures:
  - node_js: node
  +before_install:
  + - curl -o- -L https://yarnpkg.com/install.sh | bash -s -- --version 1.3.2
  + - export PATH=$HOME/.yarn/bin:$PATH
  cache: yarn
  script: npm run build
  after_success:
  