diff --git a/test-requirements.txt b/test-requirements.txt
index 3adb9927..6892a0eb 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -9,7 +9,7 @@ fixtures>=0.3.14
 python-subunit>=0.0.18
 testrepository>=0.0.18
 testscenarios>=0.4
-testtools>=0.9.36
+testtools>=0.9.36,!=1.2.0,!=1.4.0
 oslotest>=1.2.0  # Apache-2.0
 
 # when we can require tox>= 1.4, this can go into tox.ini: