1 files changed, 4 insertions, 0 deletions
diff --git a/tox.ini b/tox.ini
index c61b64c6..0b46af64 100644
--- a/tox.ini
+++ b/tox.ini
@@ -10,6 +10,7 @@ skipsdist = True
 deps =
     unittest2
     ordereddict
+    mock==1.0.1
     -rrequirements.txt
 # Some tests expect specific ordering, so we set the hash
 # seed for Python 2.x until all tests are updated for Python 3.
@@ -20,6 +21,9 @@ setenv =
     PYTHONHASHSEED = 0
 
 [testenv:py27]
+deps =
+    mock==1.0.1
+    -rrequirements.txt
 # See comment above in py26 about hash seed.
 setenv =
     PYTHONHASHSEED = 0