diff --git a/.phpcs.xml b/.phpcs.xml
index 77c6d677d..9fa770ba5 100644
--- a/.phpcs.xml
+++ b/.phpcs.xml
@@ -1,7 +1,6 @@
 <?xml version="1.0"?>
 <ruleset>
-	<rule ref="./vendor/mediawiki/mediawiki-codesniffer/MediaWiki">
-	</rule>
+	<rule ref="./vendor/mediawiki/mediawiki-codesniffer/MediaWiki" />
 	<rule ref="Generic.Files.LineLength">
 		<exclude-pattern>AbuseFilter\.alias\.php</exclude-pattern>
 		<exclude-pattern>AbuseFilterParserTest\.php</exclude-pattern>
diff --git a/composer.json b/composer.json
index f0388a28c..ae5e34eee 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,7 @@
 	},
 	"require-dev": {
 		"jakub-onderka/php-parallel-lint": "1.0.0",
-		"mediawiki/mediawiki-codesniffer": "22.0.0",
+		"mediawiki/mediawiki-codesniffer": "23.0.0",
 		"jakub-onderka/php-console-highlighter": "0.3.2",
 		"mediawiki/minus-x": "0.3.2",
 		"mediawiki/mediawiki-phan-config": "0.3.0"