diff --git a/composer.json b/composer.json
index 711f28d..3a7576b 100644
--- a/composer.json
+++ b/composer.json
@@ -3,7 +3,7 @@
 	"description": "",
 	"license": "LGPL-3.0-only",
 	"require-dev": {
-		"mediawiki/mediawiki-codesniffer": "42.0.0",
+		"mediawiki/mediawiki-codesniffer": "43.0.0",
 		"mediawiki/mediawiki-phan-config": "0.14.0",
 		"mediawiki/minus-x": "1.1.1",
 		"php-parallel-lint/php-console-highlighter": "1.0.0",
@@ -21,5 +21,12 @@
 		],
 		"phan": "phan -d . --long-progress-bar",
 		"phpcs": "phpcs -sp --cache"
+	},
+	"config": {
+		"prepend-autoloader": false,
+		"optimize-autoloader": true,
+		"allow-plugins": {
+			"dealerdirect/phpcodesniffer-composer-installer": true
+		}
 	}
 }