diff --git a/model/user.go b/model/user.go
index 360afc3..3e727a0 100644
--- a/model/user.go
+++ b/model/user.go
@@ -26,7 +26,7 @@ type User struct {
 	Quota            int            `json:"quota" gorm:"type:int;default:0"`
 	UsedQuota        int            `json:"used_quota" gorm:"type:int;default:0;column:used_quota"` // used quota
 	RequestCount     int            `json:"request_count" gorm:"type:int;default:0;"`               // request number
-	Group            string         `json:"group" gorm:"type:varchar(32);default:'default'"`
+	Group            string         `json:"group" gorm:"type:varchar(64);default:'default'"`
 	AffCode          string         `json:"aff_code" gorm:"type:varchar(32);column:aff_code;uniqueIndex"`
 	AffCount         int            `json:"aff_count" gorm:"type:int;default:0;column:aff_count"`
 	AffQuota         int            `json:"aff_quota" gorm:"type:int;default:0;column:aff_quota"`           // 邀请剩余额度