diff --git a/.travis.yml b/.travis.yml
index 87da256..83ec3c2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,7 @@
 language: node_js
 
 node_js:
-  - "4"
+  - "6"
 
 after_success:
   - npm run semantic-release