diff --git a/src/header.html b/src/header.html
index 1e40246..bab4b1c 100644
--- a/src/header.html
+++ b/src/header.html
@@ -1,7 +1,7 @@
 <header>
     <nav>
         <a href="/" id="logo">unixtime.app</a>
-        <a href="https://www.v01.io/categories/unixtime.app/" target="_blank">About</a><a href="https://github.com/klausbreyer/unixtime.app" target="_blank">Contribute</a>
+        <a href="https://www.v01.io/posts/2022-unixtimestamp-workflow/" target="_blank">About</a><a href="https://github.com/klausbreyer/unixtime.app" target="_blank">Contribute</a>
         <p>&copy;<a href="https://v01.io" target="_blank">Klaus Breyer</a></p>
     </nav>
     <a href="https://your-url" class="github-corner" aria-label="View source on GitHub"><svg width="70" height="70" viewBox="0 0 250 250" style="fill:#FD6C6C; color:#fff; position: absolute; top: 0; border: 0; right: 0;" aria-hidden="true">