diff --git a/requirements.txt b/requirements.txt
index 2ee5ed9863..50bff9e4af 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ WebOb>=1.6.0 # MIT
 sqlalchemy-migrate>=0.9.6 # Apache-2.0
 httplib2>=0.7.5 # MIT
 pycrypto>=2.6 # Public Domain
-oslo.config>=3.14.0 # Apache-2.0
+oslo.config!=3.18.0,>=3.14.0 # Apache-2.0
 oslo.concurrency>=3.8.0 # Apache-2.0
 oslo.context>=2.9.0 # Apache-2.0
 oslo.utils>=3.17.0 # Apache-2.0
diff --git a/test-requirements.txt b/test-requirements.txt
index cf29ec3255..8a9381889c 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -35,4 +35,4 @@ python-swiftclient>=2.2.0 # Apache-2.0
 # Documentation
 os-api-ref>=1.0.0 # Apache-2.0
 oslosphinx>=4.7.0 # Apache-2.0
-reno>=1.8.0 # Apache2
+reno>=1.8.0 # Apache-2.0