diff --git a/robots.txt b/robots.txt
index 78264fd4c..531486a8b 100644
--- a/robots.txt
+++ b/robots.txt
@@ -3,4 +3,4 @@
 
 User-agent: *
 Allow: /
-Sitemap: https://yangsijun528.github.io/_site/sitemap.xml
\ No newline at end of file
+Sitemap: {{ site.url }}/sitemap.xml
\ No newline at end of file