diff --git a/.travis.yml b/.travis.yml
index e5222656..12250660 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,7 @@
 language: node_js
 services:
 - docker
+- ntp
 before_install: npm install -g npm@'>=2.13.5'
 script:
 - npm test