diff --git a/lib/sch b/lib/sch
index 029c200..ff86c96 160000
--- a/lib/sch
+++ b/lib/sch
@@ -1 +1 @@
-Subproject commit 029c2006fd51370699d9f3427f5c60cb1d12e5a1
+Subproject commit ff86c963ec7fdc7be720968fc1414465149ad3a9