diff --git a/schema/dataset_blocks_member.go b/schema/dataset_blocks_member.go
index 0a76ee9..d619be0 100644
--- a/schema/dataset_blocks_member.go
+++ b/schema/dataset_blocks_member.go
@@ -1,10 +1,8 @@
 package schema
 
-import "gorm.io/gorm"
-
 // DatasetBlocksMember 板块成分股。
 type DatasetBlocksMember struct {
-	gorm.Model
+	ID     uint    `gorm:"primarykey"`
 	TiCode string  `gorm:"type:varchar(50);not null;default:'';comment:板块代码;index" json:"ti_code"`
 	TsCode string  `gorm:"type:varchar(50);not null;default:'';comment:股票代码;index" json:"ts_code"`
 	Weight float64 `gorm:"type:float;not null;default:0;comment:权重" json:"weight"`