diff --git a/.travis.yml b/.travis.yml
index 43c4476..f26d543 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,10 @@
 language: node_js
 node_js:
   - 4
+  - 5
+  - 6
+  - 7
+  - 8
 before_install:
   - npm install -g npm@2.x
 script: