diff --git a/.travis.yml b/.travis.yml
index 7fcd20b..46857c4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,6 +8,8 @@ after_success:
   - npm run publish-coverage
 language: node_js
 node_js:
+  - iojs-v2
+  - iojs-v1
   - 0.12
   - 0.10
 services: