diff --git a/dbpool.go b/dbpool.go
index 3c5718c..10462d7 100644
--- a/dbpool.go
+++ b/dbpool.go
@@ -184,8 +184,8 @@ func (this *dbPool) OrmSelectOne(
 func (this *dbPool) Update(
 	dataSource string,
 	tblName string,
-	fieldsKv [][]string,
 	whereKv [][]string,
+	fieldsKv [][]string,
 	cb ExecResultCb) {
 	params := []string{}
 	sql := "UPDATE `" + tblName + "` SET " + this.joinUpdateFields(fieldsKv, &params) +
@@ -228,7 +228,7 @@ func (this *dbPool) Upsert(
 				return
 			}
 			if ds.Next() {
-				this.Update(dataSource, tblName, updateKv, whereKv, cb)
+				this.Update(dataSource, tblName, whereKv, updateKv, cb)
 			} else {
 				this.Insert(dataSource, tblName, insertKv, cb)
 			}