diff --git a/.travis.yml b/.travis.yml
index 9ccb608..5ce2562 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,4 +3,5 @@ language: node_js
 node_js:
   - "0.10"
   - "0.12"
-  - "iojs"
+  - 4
+  - 6