diff --git a/.travis.yml b/.travis.yml
index ba4dedb..645175d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,4 +2,5 @@ language: node_js
 node_js:
   - "4"
   - "6"
-  - "node"
\ No newline at end of file
+  - "node"
+before_install: npm i -g npm@4