From 11442f9a13bc433aee1ee23b95e2195bf15952bc Mon Sep 17 00:00:00 2001
From: Chengmo <cmchengmo@163.com>
Date: Sun, 7 Jun 2020 16:04:20 +0800
Subject: [PATCH] Update rec_background.md

fix link of rec doc
---
 doc/rec_background.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/doc/rec_background.md b/doc/rec_background.md
index b6cf8b1c..94186aff 100644
--- a/doc/rec_background.md
+++ b/doc/rec_background.md
@@ -3,7 +3,7 @@
 
 本文代码目录在[book/recommender_system](https://github.com/PaddlePaddle/book/tree/develop/05.recommender_system),初次使用请您参考[Book文档使用说明](https://github.com/PaddlePaddle/book/blob/develop/README.cn.md#运行这本书)。
 
-更多教程及背景知识可以查阅[深度学习实践应用：个性化推荐](https://www.paddlepaddle.org.cn/tutorials/projectdetail/443958)
+更多教程及背景知识可以查阅[深度学习实践应用：个性化推荐](https://www.paddlepaddle.org.cn/tutorials/projectdetail/460300)
 
 ## 背景介绍
 
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