diff --git a/test-requirements.txt b/test-requirements.txt
index 849459f167..4f7e9bcbe9 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -17,4 +17,4 @@ psycopg2
 sphinx>=1.1.2,!=1.2.0,!=1.3b1,<1.3
 testrepository>=0.0.18
 testscenarios>=0.4
-testtools>=0.9.36
+testtools>=0.9.36,!=1.2.0,!=1.4.0