diff --git a/README.md b/README.md
index 793388f..36e69a7 100644
--- a/README.md
+++ b/README.md
@@ -759,7 +759,7 @@
 * [Scipy 讲义](https://github.com/cloga/scipy-lecture-notes_cn)
 * [Python 学习笔记 基础篇](http://www.kuqin.com/docs/pythonbasic.html) :worried:
 * [Python 学习笔记 模块篇](http://www.kuqin.com/docs/pythonmodule.html) :worried:
-* [Python 标准库 中文版](http://old.sebug.net/paper/books/python/%E3%80%8APython%E6%A0%87%E5%87%86%E5%BA%93%E3%80%8B%E4%B8%AD%E6%96%87%E7%89%88.pdf)
+* [Python 标准库 中文版](https://docs.python.org/zh-cn/3/library/index.html)
 * [Python进阶](https://www.gitbook.com/book/eastlakeside/interpy-zh/details) :worried:
 * [Python 核心编程 第二版](https://wizardforcel.gitbooks.io/core-python-2e/content/) CPyUG译 :worried:
 * [Python最佳实践指南](http://pythonguidecn.readthedocs.io/zh/latest/)