diff --git a/README.md b/README.md
index a2ab220..46ea310 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,5 @@
 # Go-MC
-![Version](https://img.shields.io/badge/Minecraft-1.16.5-blue.svg)
-![Protocol](https://img.shields.io/badge/Protocol-754-blue.svg)
+![Version](https://img.shields.io/badge/Minecraft-1.17-blue.svg)
 [![Go Reference](https://pkg.go.dev/badge/github.com/Tnze/go-mc.svg)](https://pkg.go.dev/github.com/Tnze/go-mc)
 [![Go Report Card](https://goreportcard.com/badge/github.com/Tnze/go-mc)](https://goreportcard.com/report/github.com/Tnze/go-mc)
 [![Build Status](https://travis-ci.org/Tnze/go-mc.svg?branch=master)](https://travis-ci.org/Tnze/go-mc)
diff --git a/bot/mcbot.go b/bot/mcbot.go
index b750af7..ca3d9b9 100644
--- a/bot/mcbot.go
+++ b/bot/mcbot.go
@@ -17,7 +17,7 @@ import (
 )
 
 // ProtocolVersion , the protocol version number of minecraft net protocol
-const ProtocolVersion = 754
+const ProtocolVersion = 755
 const DefaultPort = 25565
 
 // JoinServer connect a Minecraft server for playing the game.