diff --git a/sitemap.xml b/sitemap.xml
index edebc53f2c..f52b8e1f3e 100644
--- a/sitemap.xml
+++ b/sitemap.xml
@@ -15454,7 +15454,7 @@
 </url>
 <url>
     <loc>https://www.ioccc.org/Makefile</loc>
-    <lastmod>2025-01-18T02:21:14+00:00</lastmod>
+    <lastmod>2025-01-23T20:42:14+00:00</lastmod>
 </url>
 <url>
     <loc>https://www.ioccc.org/news.html</loc>