diff --git a/unipay/payfee.py b/unipay/payfee.py
index d73ad46..9c34869 100644
--- a/unipay/payfee.py
+++ b/unipay/payfee.py
@@ -43,6 +43,7 @@ async def get_pay_feerate(sor, channelid):
 	async with db.sqlorContext(dbname) as sor:
 		return await sor_get_pay_feerate(sor, channelid)
 	return None
+
 async def sor_get_pay_feerate(sor, channelid):
 	env = ServerEnv()
 	dbname = env.get_module_dbname('unipay')
@@ -58,8 +59,12 @@ where
 	and b.expired_date >= ${biz_date}$
 	and a.id = ${channelid}$
 """
-	recs = await sor.sqlExe(sql, {'channelid': channelid,
-						'biz_date': biz_date})
+	ns = {
+		'channelid': channelid,
+		'biz_date': biz_date
+	}
+	recs = await sor.sqlExe(sql, ns.copy())
+	debug(f'{recs=},{ns=}, {sql=}')
 	if len(recs) > 0:
 		return recs[0]
 	return None