diff --git a/README.md b/README.md
index 2682367b1..357661ede 100644
--- a/README.md
+++ b/README.md
@@ -90,7 +90,7 @@ Cloud services require a paid subscription.
 * [bazzar](https://github.com/siyuan-note/bazaar): Community marketplace
 * [dejavu](https://github.com/siyuan-note/dejavu): Data repo
 * [riff](https://github.com/siyuan-note/riff): Spaced repetition system
-* [petal](https://github.com/siyuan-note/petal): Plugin system
+* [petal](https://github.com/siyuan-note/petal): Plugin API
 * [chrome](https://github.com/siyuan-note/siyuan-chrome): Chrome extension
 * [lute](https://github.com/88250/lute): A structured editor engine that supports Go and JavaScript
 * [ios](https://github.com/siyuan-note/siyuan-ios): iOS APP
diff --git a/README_zh_CN.md b/README_zh_CN.md
index 38476b063..ba09112cd 100644
--- a/README_zh_CN.md
+++ b/README_zh_CN.md
@@ -90,7 +90,7 @@
 * [bazzar](https://github.com/siyuan-note/bazaar)：社区集市
 * [dejavu](https://github.com/siyuan-note/dejavu)：数据仓库
 * [riff](https://github.com/siyuan-note/riff)：间隔重复系统
-* [petal](https://github.com/siyuan-note/petal)：插件系统
+* [petal](https://github.com/siyuan-note/petal)：插件 API
 * [chrome](https://github.com/siyuan-note/siyuan-chrome)：Chrome 扩展
 * [lute](https://github.com/88250/lute)：结构化的编辑器引擎，支持 Go 和 JavaScript
 * [ios](https://github.com/siyuan-note/siyuan-ios): iOS APP