diff --git a/.travis.yml b/.travis.yml
index 444e6727b..bd44f7f66 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,6 +15,7 @@ node_js:
   - "4"
   - "6"
   - "8"
+  - "9"
 
 branches:
   only: