diff --git a/test-requirements.txt b/test-requirements.txt
index 5c5ab98cdc..7b1770bc67 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -16,7 +16,7 @@ oslotest>=1.10.0 # Apache-2.0
 reno!=2.3.1,>=1.8.0 # Apache-2.0
 PrettyTable<0.8,>=0.7.1 # BSD
 PyYAML>=3.10.0 # MIT
-python-barbicanclient!=4.5.0,>=4.0.0 # Apache-2.0
+python-barbicanclient!=4.5.0,!=4.5.1,>=4.0.0 # Apache-2.0
 python-ceilometerclient>=2.5.0 # Apache-2.0
 python-heatclient>=1.6.1 # Apache-2.0
 python-neutronclient>=6.3.0 # Apache-2.0