diff --git a/composer.json b/composer.json
index 213dc55..474ce2f 100644
--- a/composer.json
+++ b/composer.json
@@ -21,7 +21,7 @@
 	},
 	"require-dev": {
 		"php-parallel-lint/php-parallel-lint": "1.3.2",
-		"mediawiki/mediawiki-codesniffer": "39.0.0",
+		"mediawiki/mediawiki-codesniffer": "42.0.0",
 		"php-parallel-lint/php-console-highlighter": "1.0.0",
 		"mediawiki/minus-x": "1.1.1"
 	},