diff --git a/docs/README.md b/docs/README.md
index 0a062b5..f2428fc 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -245,7 +245,7 @@ CodeEdit | CodeEdit
 [JSDoc](http://www.css88.com/doc/jsdoc/index.html) | JS生成文档
 [regexr](http://www.regexr.com/) | 正则匹配
 [pxtoem](http://pxtoem.com/) | px转em
-[Unicode字符百科](https://unicode-table.com/cn/#control-character) | 查询各种unicode字符
+[Unicode字符百科](https://symbl.cc/cn/unicode-table/#control-character) | 查询各种unicode字符