diff --git a/bi/vas_yoy_flow.py b/bi/vas_yoy_flow.py
index 8fe7b56..2a3ae99 100644
--- a/bi/vas_yoy_flow.py
+++ b/bi/vas_yoy_flow.py
@@ -46,7 +46,7 @@ class S:
         sql_q = "select * from vas_day_flow where pdate='{}'".format(get_time_str_by_ts(t))
         rows = self.mysql_db_bi.query(sql_q)
         if len(rows) > 0:
-            sql_u = "update set vas_day_flow set flow=%s where pdate=%s"
+            sql_u = "update vas_day_flow set flow=%s where pdate=%s"
             return self.mysql_db_bi.exec(sql_u, (flow, formatted_dt))
         else:
             sql_i = "insert into vas_day_flow (pdate, flow) values (%s,%s)"