diff --git a/test-requirements.txt b/test-requirements.txt
index 822014b..f281ce0 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -13,4 +13,4 @@ oslosphinx>=2.2.0  # Apache-2.0
 oslotest>=1.2.0  # Apache-2.0
 testrepository>=0.0.18
 testscenarios>=0.4
-testtools>=0.9.36,!=1.2.0,!=1.4.0
+testtools>=0.9.36,!=1.2.0