diff --git a/test-requirements.txt b/test-requirements.txt
index ccedd812a..3460b59de 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -9,7 +9,8 @@ coverage>=3.6
 ddt>=0.7.0
 discover
 fixtures>=1.3.1
-mock>=1.0
+mock>=1.1;python_version!='2.6'
+mock==1.0.1;python_version=='2.6'
 mox3>=0.7.0
 PyMySQL>=0.6.2 # MIT License
 psycopg2