diff --git a/.travis.yml b/.travis.yml
index e6ab020..c4ca3ba 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,8 @@
 language: node_js
 node_js:
   - "node"
+  - "6"
+  - "4"
+  - "0.12"
   - "0.10.45"
 script: "npm run coverage"
\ No newline at end of file