diff --git a/.travis.yml b/.travis.yml
index 35ff65fa..2f5cc246 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,6 +14,7 @@ node_js:
    - "0.12.0"
    - "0.11"
    - "0.10"
+   - "4"
 os:
   - linux
   - osx