diff --git a/circle.yml b/circle.yml
index b0553fc8..a2ec6207 100644
--- a/circle.yml
+++ b/circle.yml
@@ -10,6 +10,7 @@ machine:
 checkout:
     post:
         - git submodule update --init
+        - pip install -U pip setuptools virtualenv
 
 dependencies:
     pre: