diff --git a/requirements.txt b/requirements.txt
index 6967bf6..f919bfc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ pbr>=1.6 # Apache-2.0
 Babel>=2.3.4 # BSD
 
 alembic>=0.8.4 # MIT
-oslo.config>=3.14.0 # Apache-2.0
+oslo.config!=3.18.0,>=3.14.0 # Apache-2.0
 oslo.db!=4.13.1,!=4.13.2,>=4.10.0 # Apache-2.0
 oslo.versionedobjects>=1.13.0 # Apache-2.0
 oslo.i18n>=2.1.0 # Apache-2.0