diff --git a/requirements.txt b/requirements.txt
index b0ed76f..bb77424 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,6 +27,7 @@ tqdm>=4.65.0
 # ==================== 时间处理 ====================
 python-dateutil>=2.8.0
 schedule>=1.2.0
+pandas_market_calendars>=5.0.0
 
 # ==================== 金融数据 ====================
 tushare>=1.2.0