diff --git a/composer.json b/composer.json
index bb054d0a..021a14cb 100644
--- a/composer.json
+++ b/composer.json
@@ -2,7 +2,7 @@
 	"require-dev": {
 		"jakub-onderka/php-parallel-lint": "0.9.2",
 		"jakub-onderka/php-console-highlighter": "0.3.2",
-		"mediawiki/mediawiki-codesniffer": "0.11.0"
+		"mediawiki/mediawiki-codesniffer": "0.12.0"
 	},
 	"scripts": {
 		"fix": "phpcbf",
diff --git a/phpcs.xml b/phpcs.xml
index ed56aa99..733a51be 100644
--- a/phpcs.xml
+++ b/phpcs.xml
@@ -3,6 +3,8 @@
 	<rule ref="./vendor/mediawiki/mediawiki-codesniffer/MediaWiki">
 		<exclude name="MediaWiki.Commenting.FunctionComment.MissingDocumentationPublic" />
 		<exclude name="MediaWiki.Commenting.FunctionComment.MissingParamComment" />
+		<exclude name="MediaWiki.Files.ClassMatchesFilename.NotMatch" />
+		<exclude name="MediaWiki.Files.OneClassPerFile.MultipleFound" />
 		<exclude name="Squiz.Classes.ValidClassName.NotCamelCaps"/>
 		<exclude name="MediaWiki.WhiteSpace.SpaceBeforeSingleLineComment.NewLineComment"/>
 	</rule>