diff --git a/public/about.php b/public/about.php
index 90ee816..127f81d 100644
--- a/public/about.php
+++ b/public/about.php
@@ -129,7 +129,7 @@
 	<p>engineering</p>
 	<p>photography</p>
 	<p>videography</p>
-	<p>ISO&nbsp;8601</p>
+	<p>RFC&nbsp;3339</p>
 	<p>digital archiving</p>
 </div>
 <script type="module"><?= VV::js("public/assets/js/pages/about") ?></script>