diff --git a/protocol b/protocol
index 57115bf5..552f80e3 160000
--- a/protocol
+++ b/protocol
@@ -1 +1 @@
-Subproject commit 57115bf5a9e2e3f1b8429a9bc81ec10b74591b68
+Subproject commit 552f80e3940c06f17e2c27aa612e97925d251d45