language: node_js
node_js:
    - "stable"
    - "8.6.0"
install:
    - npm install
script:
    - nvm use stable
    - npm test

language: node_js
node_js:
    - "stable"
    - "6.3.0"
install:
    - npm install
script:
    - nvm use stable
    - npm test

Revert "feat(ci): use latest Node and npm"
Revert "feat(ci): use latest Node and npm"

This reverts commit 63fedaab5e4249c0ca1d8c07f73f8b5388d98e6c.
