diff --git a/src/apk/app.apk b/src/apk/app.apk
index 0d6cf66..9a41e30 100644
Binary files a/src/apk/app.apk and b/src/apk/app.apk differ
diff --git a/src/app.controller.ts b/src/app.controller.ts
index f455539..65def05 100644
--- a/src/app.controller.ts
+++ b/src/app.controller.ts
@@ -518,6 +518,9 @@ export class AppController {
     if (!node_other_visitor) {
       throw new BadRequestException("数据不存在")
     }
+    if (node_other_visitor.end_time) {
+      throw new BadRequestException("重复签退")
+    }
     node_other_visitor.end_time = new Date();
     const result = await this.nodeOtherVisitorRepository.save(node_other_visitor);
     return result;
@@ -591,7 +594,7 @@ export class AppController {
     @Req() req: any,
   ): Promise<any> {
     return {
-      "versionName":"1.1.5",
+      "versionName":"1.2.0",
       "apkUrl":`http://${process.env.LOCAL_IP}/app.apk`,
       "forceUpdate": false,
       "whatsNew": "新版本更新"