diff --git a/requirements.txt b/requirements.txt
index 055546b8b..2e88bca65 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ eventlet!=0.18.3,!=0.20.1,<0.21.0,>=0.18.2 # MIT
 iso8601>=0.1.11 # MIT
 netaddr!=0.7.16,>=0.7.13 # BSD
 netifaces>=0.10.4 # MIT
-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.log>=3.22.0 # Apache-2.0
 oslo.serialization>=1.10.0 # Apache-2.0