diff --git a/tools/tdgpt/taosanalytics/app.py b/tools/tdgpt/taosanalytics/app.py
index 682bce012c..7be41489e7 100644
--- a/tools/tdgpt/taosanalytics/app.py
+++ b/tools/tdgpt/taosanalytics/app.py
@@ -160,4 +160,4 @@ def handle_forecast_req():
 
 
 if __name__ == '__main__':
-    app.run()
+    app.run(port=6090)