1 files changed, 1 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini
index 2e4504f..b72f3ad 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,7 +4,7 @@ envlist = py27,py33,py34,py35,flake8,linters,docs
 
 [testenv]
 deps =
-    mock
+    mock>=2.0.0
     pytest
     coverage
 commands =