diff --git a/zrpc/src/lib.rs b/zrpc/src/lib.rs
index 7e32da83c56c4531002a9a662092ab0caa093d2b..ccaf50135003576fd98c43cf26aff4e5202e7621 100644
--- a/zrpc/src/lib.rs
+++ b/zrpc/src/lib.rs
@@ -5,4 +5,4 @@ pub mod proto;
 pub use conn::Connection;
 pub use peer::*;
 
-pub const PROTOCOL_VERSION: u32 = 0;
+pub const PROTOCOL_VERSION: u32 = 1;