diff --git a/extension.json b/extension.json
index c6a5703..0e5ccbd 100644
--- a/extension.json
+++ b/extension.json
@@ -7,7 +7,7 @@
 	"description": "Displays a user's real name everywhere",
 	"license-name": "BSD-2-Clause",
 	"requires": {
-		"MediaWiki": ">= 1.39.0"
+		"MediaWiki": ">= 1.43.0"
 	},
 	"config": {
 		"RealnamesLinkStyle": "paren-reverse",
diff --git a/src/Realnames.php b/src/Realnames.php
index 1d3fdcd..b1b3e79 100644
--- a/src/Realnames.php
+++ b/src/Realnames.php
@@ -26,18 +26,18 @@
 	ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
-use Config;
-use Language;
+use MediaWiki\Config\Config;
+use MediaWiki\Language\Language;
+use MediaWiki\Output\OutputPage;
+use MediaWiki\User\User;
 use MediaWiki\User\UserFactory;
-use OutputPage;
 use Skin;
-use User;
 
 /**
  * >= 0.1
  */
 class Realnames implements
-	\MediaWiki\Hook\BeforePageDisplayHook,
+	\MediaWiki\Output\Hook\BeforePageDisplayHook,
 	\MediaWiki\Hook\SkinTemplateNavigation__UniversalHook
 {