diff --git a/.travis.yml b/.travis.yml
index 784e99e..e6c5885 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,6 @@
 language: node_js
 node_js:
-  - 0.10
-  - 0.12
+  - "0.10"
+  - "0.12"
+  - "4"
+  - "stable"