diff --git a/.travis.yml b/.travis.yml
index a73a848858..1c98e39b5c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,8 @@
 language: python
 sudo: false
+cache:
+  directories:
+    - node_modules
 env:
   - DISPLAY=:99.0