diff --git a/test-requirements.txt b/test-requirements.txt
index 76b01c6..ab5b681 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -18,7 +18,7 @@ oslotest>=1.7.0 # Apache-2.0
 
 
 # mocking framework
-mock>=1.1;python_version!='2.6'
+mock!=1.1.4,>=1.1;python_version!='2.6'
 mock==1.0.1;python_version=='2.6'
 
 # rootwrap daemon's client should be verified to run in eventlet