diff --git a/proto b/proto
index d192833e5..6a66f8b1f 160000
--- a/proto
+++ b/proto
@@ -1 +1 @@
-Subproject commit d192833e5c43d7e388fa4605c41b0ef5ca459731
+Subproject commit 6a66f8b1f81815e62279ff66dea908112583e6ab