diff --git a/run.py b/run.py
index 3c5055b..53f02a2 100644
--- a/run.py
+++ b/run.py
@@ -149,7 +149,7 @@ def run_ts_predict():
             resp.headers["Content-Disposition"] = "attachment; filename*=utf-8''{}".format(file_name)
             resp.headers["Content-type"] = "application/x-xlsx"
         else:
-            resp = make_response(resp_info)
+            resp = make_response(json.dumps(resp_info))
         resp.status_code = 200
         return resp