diff --git a/README.md b/README.md
index 906c707..095a7ff 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
   <br>
   <small><i>LOGO designed by <a href="https://xio.ng" target="_blank">熊大</a> .</i></small>
   <br><br>
-<img src="https://img.shields.io/github/workflow/status/naiba/nezha/Dashboard%20image?label=Dash%20v0.12.11&logo=github&style=for-the-badge">&nbsp;<img src="https://img.shields.io/github/v/release/naiba/nezha?color=brightgreen&label=Agent&style=for-the-badge&logo=github">&nbsp;<img src="https://img.shields.io/github/workflow/status/naiba/nezha/Agent%20release?label=Agent%20CI&logo=github&style=for-the-badge">&nbsp;<img src="https://img.shields.io/badge/Installer-v0.8.1-brightgreen?style=for-the-badge&logo=linux">
+<img src="https://img.shields.io/github/workflow/status/naiba/nezha/Dashboard%20image?label=Dash%20v0.12.12&logo=github&style=for-the-badge">&nbsp;<img src="https://img.shields.io/github/v/release/naiba/nezha?color=brightgreen&label=Agent&style=for-the-badge&logo=github">&nbsp;<img src="https://img.shields.io/github/workflow/status/naiba/nezha/Agent%20release?label=Agent%20CI&logo=github&style=for-the-badge">&nbsp;<img src="https://img.shields.io/badge/Installer-v0.8.1-brightgreen?style=for-the-badge&logo=linux">
   <br>
   <br>
   <p>:trollface: <b>哪吒监控</b> 一站式轻监控轻运维系统。支持系统状态、HTTP(SSL 证书变更、即将到期、到期)、TCP、Ping 监控报警，计划任务和在线终端。</p>
diff --git a/cmd/dashboard/controller/common_page.go b/cmd/dashboard/controller/common_page.go
index e318bf4..c79150e 100644
--- a/cmd/dashboard/controller/common_page.go
+++ b/cmd/dashboard/controller/common_page.go
@@ -140,14 +140,16 @@ func (cp *commonPage) ws(c *gin.Context) {
 		return
 	}
 	defer conn.Close()
+	var servers []*model.Server
 	count := 0
 	for {
 		singleton.SortedServerLock.RLock()
+		servers = singleton.SortedServerList
+		singleton.SortedServerLock.RUnlock()
 		err = conn.WriteJSON(Data{
 			Now:     time.Now().Unix() * 1000,
-			Servers: singleton.SortedServerList,
+			Servers: servers,
 		})
-		singleton.SortedServerLock.RUnlock()
 		if err != nil {
 			break
 		}
diff --git a/service/singleton/singleton.go b/service/singleton/singleton.go
index beaedca..14a9654 100644
--- a/service/singleton/singleton.go
+++ b/service/singleton/singleton.go
@@ -14,7 +14,7 @@ import (
 	pb "github.com/naiba/nezha/proto"
 )
 
-var Version = "v0.12.11" // ！！记得修改 README 中的 badge 版本！！
+var Version = "v0.12.12" // ！！记得修改 README 中的 badge 版本！！
 
 var (
 	Conf  *model.Config