diff --git a/htdocs/admin/system/about.php b/htdocs/admin/system/about.php
index 64f8fba72ad..3cfc18accc9 100644
--- a/htdocs/admin/system/about.php
+++ b/htdocs/admin/system/about.php
@@ -86,31 +86,31 @@ print '</li>';
 if (preg_match('/^fr_/i', $langs->getDefaultLang()))
 {
 	print '<li>';
-	print '<a target="_blank" href="http://www.dolibarr.fr/" rel="external">'.$langs->trans("OfficialWebSiteLocal", $langs->transnoentitiesnoconv("France")).'</a>';
+	print '<a target="_blank" href="https://www.dolibarr.fr/" rel="external">'.$langs->trans("OfficialWebSiteLocal", $langs->transnoentitiesnoconv("France")).'</a>';
 	print '</li>';
 }
 if (preg_match('/^el_/i', $langs->getDefaultLang()))
 {
 	print '<li>';
-	print '<a target="_blank" href="http://www.dolibarr.gr/" rel="external">'.$langs->trans("OfficialWebSiteLocal", $langs->transnoentitiesnoconv("Greece")).'</a>';
+	print '<a target="_blank" href="https://www.dolibarr.gr/" rel="external">'.$langs->trans("OfficialWebSiteLocal", $langs->transnoentitiesnoconv("Greece")).'</a>';
 	print '</li>';
 }
 if (preg_match('/^es_/i', $langs->getDefaultLang()))
 {
 	print '<li>';
-	print '<a target="_blank" href="http://www.dolibarr.es/" rel="external">'.$langs->trans("OfficialWebSiteLocal", $langs->transnoentitiesnoconv("Spain")).'</a>';
+	print '<a target="_blank" href="https://www.dolibarr.es/" rel="external">'.$langs->trans("OfficialWebSiteLocal", $langs->transnoentitiesnoconv("Spain")).'</a>';
 	print '</li>';
 }
 if (preg_match('/^it_/i', $langs->getDefaultLang()))
 {
 	print '<li>';
-	print '<a target="_blank" href="http://www.dolibarr.it/" rel="external">'.$langs->trans("OfficialWebSiteLocal", $langs->transnoentitiesnoconv("Italy")).'</a>';
+	print '<a target="_blank" href="https://www.dolibarr.it/" rel="external">'.$langs->trans("OfficialWebSiteLocal", $langs->transnoentitiesnoconv("Italy")).'</a>';
 	print '</li>';
 }
 if (preg_match('/^de_/i', $langs->getDefaultLang()))
 {
 	print '<li>';
-	print '<a target="_blank" href="http://www.dolibarr.de/" rel="external">'.$langs->trans("OfficialWebSiteLocal", $langs->transnoentitiesnoconv("Germany")).'</a>';
+	print '<a target="_blank" href="https://www.dolibarr.de/" rel="external">'.$langs->trans("OfficialWebSiteLocal", $langs->transnoentitiesnoconv("Germany")).'</a>';
 	print '</li>';
 }
 print '<li>';