diff --git a/requirements.txt b/requirements.txt
index d0a9b379b..9afb84be8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ debtcollector>=1.2.0 # Apache-2.0
 eventlet!=0.18.3,>=0.18.2 # MIT
 greenlet>=0.3.2 # MIT
 keystoneauth1>=2.16.0 # Apache-2.0
-keystonemiddleware!=4.5.0,>=4.2.0 # Apache-2.0
+keystonemiddleware>=4.12.0 # Apache-2.0
 lxml>=2.3 # BSD
 netaddr!=0.7.16,>=0.7.13 # BSD
 oslo.cache>=1.5.0 # Apache-2.0