diff --git a/requirements.txt b/requirements.txt
index 3f869d5ad..effc22fec 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,7 +30,7 @@ osprofiler>=1.4.0 # Apache-2.0
 paramiko>=2.0 # LGPLv2.1+
 pbr!=2.1.0,>=2.0.0 # Apache-2.0
 pecan!=1.0.2,!=1.0.3,!=1.0.4,!=1.2,>=1.0.0 # BSD
-python-barbicanclient>=4.0.0 # Apache-2.0
+python-barbicanclient!=4.5.0,>=4.0.0 # Apache-2.0
 python-ceilometerclient>=2.5.0 # Apache-2.0
 python-cinderclient>=3.1.0 # Apache-2.0
 python-designateclient>=1.5.0 # Apache-2.0