diff --git a/requirements.txt b/requirements.txt
index 0238db57..978ea63e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@
 pbr>=1.6 # Apache-2.0
 iso8601>=0.1.11 # MIT
 lxml>=2.3 # BSD
-oslo.config>=3.14.0 # Apache-2.0
+oslo.config!=3.18.0,>=3.14.0 # Apache-2.0
 sphinx!=1.3b1,<1.4,>=1.2.1 # BSD
 demjson # GLGPLv3+
 PyYAML>=3.10.0 # MIT