language: node_js
node_js:
  - "4.6"
  - "6.9"
  - "7.2"
services:
  - mongodb
cache:
  directories:
  - node_modules
git:
  depth: 3
after_script:
  - yarn report-coverage

language: node_js
node_js:
  - "4.7"
  - "6.9"
  - "7.5"
services:
  - mongodb
cache:
  directories:
  - node_modules
git:
  depth: 3
after_script:
  - yarn report-coverage

Update node versions in Travis config
Update node versions in Travis config
