diff --git a/oslo.middleware b/oslo.middleware
index 52de67f789..a9f4f3fe91 160000
--- a/oslo.middleware
+++ b/oslo.middleware
@@ -1 +1 @@
-Subproject commit 52de67f7891678b75af8f50ce2d5f664170e92af
+Subproject commit a9f4f3fe91672655db5246b50d502c78333f5793