diff --git a/Configuration/TypoScript/Setup/RssFeed.typoscript b/Configuration/TypoScript/Setup/RssFeed.typoscript
index b02001c..06e5d2f 100644
--- a/Configuration/TypoScript/Setup/RssFeed.typoscript
+++ b/Configuration/TypoScript/Setup/RssFeed.typoscript
@@ -11,7 +11,7 @@ plugin.tx_seo {
                     provider = TYPO3\CMS\Seo\XmlSitemap\RecordsXmlSitemapDataProvider
                     config {
                         table = pages
-                        sortField = tstamp
+                        sortField = lastUpdated
                         lastModifiedField = tstamp
                         additionalWhere = AND (no_index = 0 OR no_follow = 0)
                         pid = 2