diff --git a/src/main/java/me/zhyd/oauth/model/AuthToken.java b/src/main/java/me/zhyd/oauth/model/AuthToken.java
index 5ae5fbd6ea2682a3f3029838cb31e887b6645703..582993545e369157b926d87e85e4fdbe9331cf7d 100644
--- a/src/main/java/me/zhyd/oauth/model/AuthToken.java
+++ b/src/main/java/me/zhyd/oauth/model/AuthToken.java
@@ -3,6 +3,7 @@ package me.zhyd.oauth.model;
 import lombok.Builder;
 import lombok.Getter;
 import lombok.Setter;
+import java.io.Serializable;
 
 /**
  * 授权所需的token
@@ -13,7 +14,7 @@ import lombok.Setter;
 @Getter
 @Setter
 @Builder
-public class AuthToken {
+public class AuthToken implements Serializable {
     private String accessToken;
     private int expireIn;
     private String refreshToken;