diff --git a/.travis.yml b/.travis.yml
index e7f4764b..70cfdb4f 100755
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,7 +3,7 @@ dist: trusty
 sudo: false
 node_js:
   - "5.0.0"
-  - "4.0.0"
+  - "6.0.0"
 env:
   - NODE_ENV=travis TRAVIS=travis CXX=g++-4.8
 services: