diff --git a/requirements.txt b/requirements.txt
index 98397024..c2e9f8c4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@
 pbr!=2.1.0,>=2.0.0 # Apache-2.0
 os-brick>=1.13.1 # Apache-2.0
 os-vif>=1.4.0 # 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.concurrency>=3.8.0 # Apache-2.0
 oslo.utils>=3.20.0 # Apache-2.0
 oslo.i18n!=3.15.2,>=2.1.0 # Apache-2.0