diff --git a/.travis.yml b/.travis.yml
index 848bd3f..423d19a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,9 +1,9 @@
 language: node_js
 node_js:
   - node
+  - 9
   - 8
   - 7
-  - 6
 
 branches:
   only: