diff --git a/extension.json b/extension.json
index 1092bf1..7d79bb1 100644
--- a/extension.json
+++ b/extension.json
@@ -7,7 +7,7 @@
 	],
 	"license-name": "GPL-3.0-only",
 	"requires": {
-		"MediaWiki": ">= 1.35.0"
+		"MediaWiki": ">= 1.40.0"
 	},
 	"url": "https://www.mediawiki.org/wiki/Extension:Create_Page",
 	"descriptionmsg": "cp-desc",
diff --git a/includes/CreatePageHooks.php b/includes/CreatePageHooks.php
index 10a4574..8036402 100644
--- a/includes/CreatePageHooks.php
+++ b/includes/CreatePageHooks.php
@@ -1,5 +1,6 @@
 <?php
 
+use MediaWiki\Html\Html;
 use MediaWiki\MediaWikiServices;
 
 class CreatePageHooks {
diff --git a/includes/specials/SpecialCreatePageRedirect.php b/includes/specials/SpecialCreatePageRedirect.php
index 175a716..1c45618 100644
--- a/includes/specials/SpecialCreatePageRedirect.php
+++ b/includes/specials/SpecialCreatePageRedirect.php
@@ -1,4 +1,7 @@
 <?php
+
+use MediaWiki\Title\Title;
+
 /**
  * This file is part of the MediaWiki extension CreatePage.
  *