diff --git a/proto b/proto
index c52c8ef99..638783bad 160000
--- a/proto
+++ b/proto
@@ -1 +1 @@
-Subproject commit c52c8ef99ead88a5edb73891b33247c54d37cb28
+Subproject commit 638783bad47d683a5bd67f8f53091c8905e4402d