diff --git a/keystone b/keystone
index 3bcd8968e9..081c64c295 160000
--- a/keystone
+++ b/keystone
@@ -1 +1 @@
-Subproject commit 3bcd8968e97a8efd8f9788a8840dd008c490cea1
+Subproject commit 081c64c2952ccfe8ae4d3566381dd7d38211cf54