diff --git a/.travis.yml b/.travis.yml
index 36542f3c..c68d1063 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,6 @@
 language: node_js
 node_js:
-  - 7
+  - 6
 script:
   - npm run lint && npm run test
   - 'if [[ ${TRAVIS_PULL_REQUEST_BRANCH:-$TRAVIS_BRANCH} = "master" ]]; then npm install -g grunt npm@5.2 && grunt pre-build; fi'