Switch to a newer node.js to fix build issues

1 changed files with 1 additions and 1 deletions
--- a/.travis.yml
+++ b/.travis.yml
@ -1,7 +1,7 @@
 language: node_js
 sudo: false
 node_js:
-  - '7.0'
+  - '11.0'
 script:
  - npm run lint
  - npm run test