diff --git a/requirements.txt b/requirements.txt
index 06609217..fad9d628 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ amqp!=2.1.4,>=2.1.0 # BSD
 pbr!=2.1.0,>=2.0.0 # Apache-2.0
 Babel!=2.4.0,>=2.3.4 # BSD
 six>=1.9.0 # MIT
-oslo.config>=3.22.0 # Apache-2.0
+oslo.config!=4.3.0,!=4.4.0,>=4.0.0 # Apache-2.0
 oslo.log>=3.22.0 # Apache-2.0
 oslo.serialization>=1.10.0 # Apache-2.0
 oslo.utils>=3.20.0 # Apache-2.0