diff --git a/proto b/proto
index 6d355041b..a4e6869fc 160000
--- a/proto
+++ b/proto
@@ -1 +1 @@
-Subproject commit 6d355041bb0a30d3fdb3f15a0c03963ec3fe2bf3
+Subproject commit a4e6869fc563a9e07aaace5bf68bd060a23a5b51