1 files changed, 1 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini
index bccb3b8..9a1b1aa 100644
--- a/tox.ini
+++ b/tox.ini
@@ -29,7 +29,7 @@ commands=
 deps=
     aiotest
     futures
-    mock
+    mock==1.0.1
     ordereddict
     unittest2