diff --git a/requirements.txt b/requirements.txt
index faa251456..6b003b718 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ pbr>=1.6 # Apache-2.0
 
 SQLAlchemy<1.1.0,>=1.0.10 # MIT
 debtcollector>=1.2.0 # Apache-2.0
-oslo.config>=3.14.0 # Apache-2.0
+oslo.config!=3.18.0,>=3.14.0 # Apache-2.0
 oslo.context>=2.9.0 # Apache-2.0
 oslo.db!=4.13.1,!=4.13.2,>=4.10.0 # Apache-2.0
 oslo.i18n>=2.1.0 # Apache-2.0