diff --git a/.travis.yml b/.travis.yml
index 49d3918..8bf678c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,6 +2,7 @@ sudo: false
 language: node_js
 node_js:
   - 'stable'
+  - '4'
   - '0.12'
   - '0.10'
 after_success: npm run coveralls