diff --git a/.phpcs.xml b/.phpcs.xml
index eddb6dc8..5d334a8b 100644
--- a/.phpcs.xml
+++ b/.phpcs.xml
@@ -1,6 +1,8 @@
 <?xml version="1.0"?>
 <ruleset>
-	<rule ref="./vendor/mediawiki/mediawiki-codesniffer/MediaWiki" />
+	<rule ref="./vendor/mediawiki/mediawiki-codesniffer/MediaWiki">
+		<exclude name="MediaWiki.Usage.NullableType.ExplicitNullableTypes" />
+	</rule>
 	<file>.</file>
 	<arg name="extensions" value="php" />
 	<arg name="encoding" value="UTF-8" />
diff --git a/composer.json b/composer.json
index 453608a8..a1edd38a 100644
--- a/composer.json
+++ b/composer.json
@@ -1,6 +1,6 @@
 {
 	"require-dev": {
-		"mediawiki/mediawiki-codesniffer": "44.0.0",
+		"mediawiki/mediawiki-codesniffer": "45.0.0",
 		"mediawiki/mediawiki-phan-config": "0.14.0",
 		"mediawiki/minus-x": "1.1.3",
 		"php-parallel-lint/php-console-highlighter": "1.0.0",