diff --git a/.travis.yml b/.travis.yml
index 1b3280a..f74b264 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,4 +3,6 @@ node_js:
   - "0.10"
   - "0.11"
   - "0.12"
-  
+  - "iojs-1"
+  - "iojs-2"
+  - "iojs-3"