diff --git a/.travis.yml b/.travis.yml
index daf742b..60cb22d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,6 +6,9 @@ addons:
 before_script:
   - export DISPLAY=:99.0
   - sh -e /etc/init.d/xvfb start
+cache:
+  directories:
+    - node_modules
 script:
   - npm run lint
   - npm test