diff --git a/models/user.go b/models/user.go
index d9c2c94..cfbab23 100644
--- a/models/user.go
+++ b/models/user.go
@@ -6,13 +6,13 @@ import (
 )
 
 type User struct {
-	ID        uint   `gorm:"primaryKey" json:"id"`
-	Username  string `gorm:"uniqueIndex;not null" json:"username"`
-	Email     string `gorm:"uniqueIndex;" json:"email"`
-	Phone     string `gorm:"uniqueIndex;" json:"phone"`
-	Password  string `gorm:"not null" json:"-"`
-	CreatedAt int64  `json:"created_at"`
-	UpdatedAt int64  `json:"updated_at"`
+	ID        uint    `gorm:"primaryKey" json:"id"`
+	Username  string  `gorm:"uniqueIndex;not null" json:"username"`
+	Email     *string `gorm:"uniqueIndex;" json:"email"`
+	Phone     *string `gorm:"uniqueIndex;" json:"phone"`
+	Password  string  `gorm:"not null" json:"-"`
+	CreatedAt int64   `json:"created_at"`
+	UpdatedAt int64   `json:"updated_at"`
 }
 
 // HashPassword 密码加密