diff --git a/sitemap.txt b/sitemap.txt
index 29cc1ad..260f03f 100644
--- a/sitemap.txt
+++ b/sitemap.txt
@@ -1,4 +1,5 @@
 https://10years.ocf.tw/bioerosion.html
 https://10years.ocf.tw/booth-recruit.html
 https://10years.ocf.tw/index.html
+https://10years.ocf.tw/objects.html
 https://10years.ocf.tw/press-release.html