diff --git a/.travis.yml b/.travis.yml
index 8aeb46e..2235e79 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,3 +5,6 @@ node_js:
   - "iojs"
 after_success:
   - npm run test-cov
+cache:
+  directories:
+    - node_modules