diff --git a/src/main.rs b/src/main.rs
index 3c3f315..6513567 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -4,7 +4,7 @@ mod log;
 mod serve;
 mod utils;
 
-pub const PROTOCOL_VERSION: &str = "1.6.11";
+pub const PROTOCOL_VERSION: &str = "1.7.3";
 
 fn main() {
     log::init_log_with_cli();