Update app.py

app.py

@@ -748,7 +748,7 @@ def _get_args():
                         action='store_true',
                         default=False,
                         help='Automatically launch the interface in a new tab on the default browser.')
-    parser.add_argument('--server-port', type=int, default=8905, help='Demo server port.')
+    parser.add_argument('--server-port', type=int, default=7860, help='Demo server port.')
     parser.add_argument('--server-name', type=str, default='0.0.0.0', help='Demo server name.')
     parser.add_argument('--ui-language', type=str, choices=['en', 'zh'], default='zh',
                         help='Display language for the UI.')