diff --git a/.travis.yml b/.travis.yml
old mode 100755
new mode 100644
index 8b97140..715d4c5
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,7 @@
 language: node_js
 node_js:
-  - "stable"
-  - "6"
+  - '6'
+  - '7'
+  - '8'
+  - stable
 after_success: npm run coveralls