diff --git a/.travis.yml b/.travis.yml
index 89058e6..c068b2d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,11 @@
-language: node_js
 sudo: false
+
+language: node_js
+
 node_js:
-    - "0.12"
+    - '0.12'
     - 4
+    - 6
+
 after_success:
     - npm run coveralls