diff --git a/requirements.txt b/requirements.txt
index a06d8457..4e1a9337 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ pbr!=2.1.0,>=2.0.0 # Apache-2.0
 Paste # MIT
 falcon>=1.0.0 # Apache-2.0
 keystonemiddleware>=4.12.0 # Apache-2.0
-oslo.config>=4.0.0 # Apache-2.0
+oslo.config!=4.3.0,!=4.4.0,>=4.0.0 # Apache-2.0
 oslo.context>=2.14.0 # Apache-2.0
 oslo.middleware>=3.27.0 # Apache-2.0
 oslo.log>=3.22.0 # Apache-2.0