diff --git a/zto b/zto
index e5d1243..c6949aa 160000
--- a/zto
+++ b/zto
@@ -1 +1 @@
-Subproject commit e5d1243dd225526b044d36b15dd28a74c49a8816
+Subproject commit c6949aad2ddacf36f191bbda58450ae57d9c59c3