diff --git a/keystone b/keystone
index 9fdbbcddc8..a7ba534f3d 160000
--- a/keystone
+++ b/keystone
@@ -1 +1 @@
-Subproject commit 9fdbbcddc8ddff7cf7eef7164e35a20fa3c75edb
+Subproject commit a7ba534f3d61d04e835fb3c578d9eee43de87d78