diff --git a/study/kernel/00-DESCRIPTION/LinuxChangeLog.md b/study/kernel/00-DESCRIPTION/LinuxChangeLog.md
index 43724c8..42465ad 100644
--- a/study/kernel/00-DESCRIPTION/LinuxChangeLog.md
+++ b/study/kernel/00-DESCRIPTION/LinuxChangeLog.md
@@ -1459,7 +1459,7 @@ SLAB 作为一个相对独立的子模块, 一直有自己完善的调试支持,
 **引用：**
 
 <div id="ref-anchor-1"></div>
-[1] [Single UNIX Specification](https://link.zhihu.com/?target=https%3A//en.wikipedia.org/wiki/Single_UNIX_Specification%23Non-registered_Unix-like_systems)
+[1] [Single UNIX Specification](https://en.wikipedia.org/wiki/Single_UNIX_Specification%23Non-registered_Unix-like_systems)
 
 [2] [POSIX 关于调度规范的文档](http://nicolas.navet.eu/publi/SlidesPosixKoblenz.pdf)