diff --git a/README.md b/README.md
index 08476d7c72335aeb12d392e21828a629e12bb782..5afb81a4ed583b87a87d95030b7fdf6a46952cc4 100644
--- a/README.md
+++ b/README.md
@@ -174,7 +174,7 @@ RT-Thread Studio ：可以在 Studio 中下载源码包并创建 rt-thread 工
 
 [动态模块](/rt-thread-version/rt-thread-standard/programming-manual/dlmodule/dlmodule)
 
-[POSIX 接口](/rt-thread-version/rt-thread-standard/programming-manual/posix/posix)
+[POSIX 接口](/rt-thread-version/rt-thread-standard/programming-manual/libc/posix/introduction)
 
 [电源管理](/rt-thread-version/rt-thread-standard/programming-manual/pm/pm)