diff --git a/packages/firefish-js/README.md b/packages/firefish-js/README.md
index 3405a7659..8a298e229 100644
--- a/packages/firefish-js/README.md
+++ b/packages/firefish-js/README.md
@@ -2,7 +2,7 @@
 
 ## Firefish SDK for Node.js, Bun, and browsers
 
-<img alt="npm" src="https://img.shields.io/npm/dm/firefish-js?logo=npm&color=%23CB0000">
+![npm badge](https://img.shields.io/npm/dm/firefish-js?logo=npm&color=%23CB0000)
 
 Fork of [misskey-js](https://www.npmjs.com/package/misskey-js)