diff --git a/.travis.yml b/.travis.yml
index fe02b45..ab56017 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,8 @@
 language: node_js
 node_js:
   - 6
-  - 7
+  - 8
+  - 9
 script: npm run build
 sudo: false
 dist: trusty