diff --git a/composer.json b/composer.json
index 6cf52f382..89cde4774 100644
--- a/composer.json
+++ b/composer.json
@@ -33,7 +33,7 @@
 		"installer-name": "Vector"
 	},
 	"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",