diff --git a/.travis.yml b/.travis.yml
index d15ed63..618e089 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,6 @@
-sudo: false
 language: node_js
+os:
+  - linux
 node_js:
   - "4"
   - "5.6.0"