diff --git a/czsc/utils/__init__.py b/czsc/utils/__init__.py
index 5d96e7e39..4d93a3000 100644
--- a/czsc/utils/__init__.py
+++ b/czsc/utils/__init__.py
@@ -1,5 +1,6 @@
 # coding: utf-8
 import os
+import pandas as pd
 from typing import List, Union
 
 from . import qywx