diff --git a/SemanticResultFormats.utils.php b/SemanticResultFormats.utils.php
index 5328a639..e63f6d57 100644
--- a/SemanticResultFormats.utils.php
+++ b/SemanticResultFormats.utils.php
@@ -1,5 +1,7 @@
 <?php
 
+use MediaWiki\Html\Html;
+
 /**
  * Common libray of independent functions that are shared among different printers
  * @license GPL-2.0-or-later
diff --git a/formats/calendar/EventCalendar.php b/formats/calendar/EventCalendar.php
index 65390fe8..0f42a3ae 100644
--- a/formats/calendar/EventCalendar.php
+++ b/formats/calendar/EventCalendar.php
@@ -2,7 +2,7 @@
 
 namespace SRF;
 
-use Html;
+use MediaWiki\Html\Html;
 use SMW\Query\QueryResult;
 use SMW\Query\ResultPrinters\ResultPrinter;