diff --git a/test-requirements.txt b/test-requirements.txt
index 4d7517d..1055742 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -4,7 +4,7 @@
 # Hacking already pins down pep8, pyflakes and flake8
 hacking<0.10,>=0.9.2
 coverage>=3.6
-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'
 discover
 oslotest>=1.7.0 # Apache-2.0