diff --git a/www/install/step_upgrade/step3.php b/www/install/step_upgrade/step3.php
index 41ce1722983..3209732757c 100644
--- a/www/install/step_upgrade/step3.php
+++ b/www/install/step_upgrade/step3.php
@@ -76,7 +76,7 @@
 
 $majors = preg_match('/^(\d+\.\d+)/', $next, $matches);
 
-$releaseNoteLink = "https://documentation.centreon.com/" . $matches[1] . '/en/releases/centreon-core.md';
+$releaseNoteLink = "https://documentation.centreon.com/" . $matches[1] . '/en/releases/centreon-core.html';
 
 $title = _('Release notes');