diff --git a/.travis.yml b/.travis.yml
index ebf2f4a621..75419c455f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,4 +17,6 @@ script:
     - coverage run -m py.test tests
 after_success:
     - coveralls
-cache: pip
+cache:
+    directories:
+        - $HOME/.cache/pip