diff --git a/requirements.txt b/requirements.txt
index 4da3c4fcd..b5248eaaf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,6 +21,7 @@ oslo.db>=11.0.0 # Apache-2.0
 oslo.i18n>=3.15.3 # Apache-2.0
 oslo.log>=4.6.1 # Apache-2.0
 oslo.messaging>=12.5.0 # Apache-2.0
+oslo.middleware>=3.31.0 # Apache-2.0
 oslo.reports>=2.2.0 # Apache-2.0
 oslo.serialization>=4.2.0 # Apache-2.0
 oslo.upgradecheck>=1.3.0 # Apache-2.0