diff --git a/composer.json b/composer.json
index b264a6d..868e669 100644
--- a/composer.json
+++ b/composer.json
@@ -1,45 +1,45 @@
 {
 	"name": "wikimedia/timestamp",
 	"description": "Creation, parsing, and conversion of timestamps",
 	"license": "GPL-2.0-or-later",
 	"homepage": "https://www.mediawiki.org/wiki/Timestamp",
 	"authors": [
 		{
 			"name": "Tyler Romeo",
 			"email": "tylerromeo@gmail.com"
 		}
 	],
 	"autoload": {
 		"files": [
 			"src/defines.php"
 		],
 		"psr-4": {
 			"Wikimedia\\Timestamp\\": "src/"
 		}
 	},
 	"require": {
 		"php": ">=7.2.9"
 	},
 	"require-dev": {
-		"mediawiki/mediawiki-codesniffer": "34.0.0",
-		"mediawiki/minus-x": "1.1.0",
-		"ockcyp/covers-validator": "1.3.1",
+		"mediawiki/mediawiki-codesniffer": "35.0.0",
+		"mediawiki/minus-x": "1.1.1",
+		"ockcyp/covers-validator": "1.3.3",
 		"php-parallel-lint/php-console-highlighter": "0.5.0",
 		"php-parallel-lint/php-parallel-lint": "1.2.0",
 		"phpunit/phpunit": "^8.5"
 	},
 	"scripts": {
 		"test": [
 			"parallel-lint . --exclude vendor",
 			"phpunit",
 			"covers-validator",
 			"phpcs -sp",
 			"minus-x check ."
 		],
 		"cover": "phpunit --coverage-html coverage",
 		"fix": [
 			"minus-x fix .",
 			"phpcbf"
 		]
 	}
 }