message: Upgrade circle node version
diff: version: 2
  jobs:
  -
  playground-build:
  docker:
  - - image: circleci/node:8
  + - image: circleci/node:8.9
  steps:
  - checkout
  - run: yarn show-versions
  @@ -13,7 +12,7 @@ jobs:
  electron-build:
  macos:
  - xcode: "9.0"
  + xcode: '9.0'
  steps:
  - checkout
  - run: |
  