diff --git a/.travis.yml b/.travis.yml
index 40ac9a9f03268bd840d1b8a0f0218a5c430c83d2..0705baa1aca8b480b2a774076bd91fb9df401a53 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,7 +3,7 @@ cache:
   directories:
     - $HOME/third_party
     - $HOME/.ccache
-
+    - $HOME/.cache/pip
 sudo: required
 dist: trusty
 os: