diff --git a/app/views/sitemap/index.xml.haml b/app/views/sitemap/index.xml.haml
index 3c07cc6ebc..f961b75899 100644
--- a/app/views/sitemap/index.xml.haml
+++ b/app/views/sitemap/index.xml.haml
@@ -14,5 +14,4 @@
   - for group in @groups
     %url
       %loc= group_url(group)
-      %lastmod= enterprise.updated_at.strftime('%Y-%m-%d')
       %changefreq yearly