diff --git a/.travis.yml b/.travis.yml
index 7a8faf5..279dbfa 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,4 +5,7 @@ node_js:
   - '0.10'
   - '0.11'
   - '0.12'
+  - 'iojs-v1.0.0'
+  - 'iojs-v1.4.0'
+  - 'iojs-v1.6.0'
   - 'iojs'