diff --git a/test-requirements.txt b/test-requirements.txt
index 7a4430c066ae..f95e6937d3c8 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -10,7 +10,7 @@ mock>=2.0 # BSD
 mox3!=0.19.0,>=0.7.0 # Apache-2.0
 psycopg2>=2.5 # LGPL/ZPL
 PyMySQL>=0.7.6 # MIT License
-python-barbicanclient>=4.0.0 # Apache-2.0
+python-barbicanclient!=4.5.0,>=4.0.0 # Apache-2.0
 python-ironicclient>=1.14.0 # Apache-2.0
 python-subunit>=0.0.18 # Apache-2.0/BSD
 requests-mock>=1.1 # Apache-2.0