diff --git a/gateway_config.py b/gateway_config.py
index dcad180..b15f1eb 100644
--- a/gateway_config.py
+++ b/gateway_config.py
@@ -144,7 +144,7 @@ class GatewayConfigTool(QMainWindow):
         self.refresh_ports()
 
     def init_ui(self):
-        self.setWindowTitle("网关配置工具(窄带版 V1.2.0)")
+        self.setWindowTitle("网关配置工具(窄带版 V1.2.1)")
         self.setWindowIcon(QIcon(resource_path("物联网网关.png")))
         self.setMinimumSize(940, 640)
         self.resize(1000, 700)