diff --git a/src/sitemap.njk b/src/sitemap.njk
index 9390e5e..388eee6 100644
--- a/src/sitemap.njk
+++ b/src/sitemap.njk
@@ -6,7 +6,7 @@ eleventyExcludeFromCollections: true
 <urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
     {% for page in collections.all %}
         <url>
-            <loc>{{ site.url }}{{ page.url | url }}</loc>
+            <loc>https://seasarorg.github.io{{ site.url }}{{ page.url | url }}</loc>
             <lastmod>{{ page.date.toISOString() }}</lastmod>
         </url>
     {% endfor %}