diff --git a/.travis.yml b/.travis.yml
index 1a582c426..dd123f55e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,8 +1,8 @@
 language: node_js
 node_js:
   - stable
+  - 8
   - 6
-  - 4
 
 # Use containers.
 # http://docs.travis-ci.com/user/workers/container-based-infrastructure/