diff --git a/README.md b/README.md
index e27b764..0b15572 100644
--- a/README.md
+++ b/README.md
@@ -24,8 +24,11 @@
 
 ```bash
 $ npm install @koa/cors --save
+$ yarn add @koa/cors
 ```
 
+
+
 ## Quick start
 
 Enable cors with default options: