diff --git a/protocol b/protocol
index 81bc050..1b1d848 160000
--- a/protocol
+++ b/protocol
@@ -1 +1 @@
-Subproject commit 81bc050da46d9dc64d02d86f211b7c9e81989110
+Subproject commit 1b1d8481014eededceb8bc21a638260ed50c8250