diff --git a/README.md b/README.md
index 17718c7..6847b28 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ A lightweight comments widget built on GitHub issues. Use GitHub issues for blog
 * [Open source](https://github.com/utterance). 🙌
 * No tracking, no ads, always free. 📡🚫
 * No lock-in. All data stored in GitHub issues. 🔓
-* Styled with [Primer](http://primercss.io/), the css toolkit that powers GitHub. 💅
+* Styled with [Primer](http://primer.style), the css toolkit that powers GitHub. 💅
 * Dark theme. 🌘
 * Lightweight. Vanilla TypeScript. No font downloads, JavaScript frameworks or polyfills for evergreen browsers. 🐦🌲