diff --git a/requirements.txt b/requirements.txt
index 65e449120..c284838af 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@
 
 pbr!=2.1.0,>=2.0.0 # Apache-2.0
 cliff>=2.6.0 # 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.utils>=3.20.0 # Apache-2.0
 oslo.log>=3.22.0 # Apache-2.0
 six>=1.9.0 # MIT