diff --git a/dao/im.go b/dao/im.go
index 180d907..50bbb68 100644
--- a/dao/im.go
+++ b/dao/im.go
@@ -9,9 +9,9 @@ import (
 
 type Session struct {
 	gorm.Model
-	UserID  int    `gorm:"column:user_id"` //只能由用户创建
-	Name    string `gorm:"column:name"`
-	Context []int  `gorm:"column:context;type:json"` //会话上下文
+	UserID  int             `gorm:"column:user_id"` //只能由用户创建
+	Name    string          `gorm:"column:name"`
+	Context json.RawMessage `gorm:"column:context;type:json"` //会话上下文
 }
 
 type Message struct {