diff --git a/.travis.yml b/.travis.yml
index 67fac257..abd393e8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,5 @@
 language: node_js
+before_install: 'if [[ `npm -v` != 4* ]]; then npm i -g npm@4; fi'
 matrix:
   include:
     - os: osx