diff --git a/.travis.yml b/.travis.yml
index b085a7bd..bdc47838 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,6 @@
 language: node_js
 node_js:
-  - 4
+  - 6
 env:
   - CXX=g++-4.8
 addons: