diff --git a/requirements.txt b/requirements.txt
index ade88c27a8..b72eeb60a8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -23,7 +23,7 @@ oslo.db>=2.4.1 # Apache-2.0
 oslo.i18n>=1.5.0 # Apache-2.0
 oslo.log>=1.8.0 # Apache-2.0
 oslo.messaging!=1.17.0,!=1.17.1,>=1.16.0 # Apache-2.0
-oslo.middleware>=2.4.0 # Apache-2.0
+oslo.middleware!=2.6.0,>=2.4.0 # Apache-2.0
 oslo.rootwrap>=2.0.0 # Apache-2.0
 oslo.serialization>=1.4.0 # Apache-2.0
 oslo.utils>=2.0.0 # Apache-2.0