diff --git a/composer.json b/composer.json
index a94a2849..4fdd4dbd 100644
--- a/composer.json
+++ b/composer.json
@@ -26,7 +26,7 @@
 	},
 	"require-dev": {
 		"jakub-onderka/php-parallel-lint": "0.9.2",
-		"mediawiki/mediawiki-codesniffer": "14.1.0",
+		"mediawiki/mediawiki-codesniffer": "15.0.0",
 		"jakub-onderka/php-console-highlighter": "0.3.2",
 		"mediawiki/minus-x": "0.2.1"
 	},