diff --git a/test-requirements.txt b/test-requirements.txt
index d4b2a109..f0f16ed8 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -24,7 +24,7 @@ oslosphinx>=4.7.0 # Apache-2.0
 mock>=2.0 # BSD
 
 # used for oslotest cross-testing scripts
-oslo.config>=3.14.0 # Apache-2.0
+oslo.config!=3.18.0,>=3.14.0 # Apache-2.0
 
 # Bandit security code scanner
 bandit>=1.1.0 # Apache-2.0