diff --git a/package.json b/package.json
index 88593fb926..1ef71b103f 100644
--- a/package.json
+++ b/package.json
@@ -7,19 +7,19 @@
 		"doc": "docs"
 	},
 	"eslintConfig": {
+		"extends": "xo",
 		"ignorePatterns": [
 			"phpBB/adm/style/admin.js",
 			"phpBB/adm/style/ajax.js",
 			"phpBB/adm/style/permissions.js",
-			"phpBB/adm/style/timezone.js",
 			"phpBB/adm/style/tooltip.js",
 			"phpBB/assets/javascript/core.js",
 			"phpBB/assets/javascript/editor.js",
 			"phpBB/assets/javascript/installer.js",
 			"phpBB/assets/javascript/plupload.js",
-			"phpBB/assets/javascript/*.min.js",
 			"phpBB/styles/prosilver/template/ajax.js",
 			"phpBB/styles/prosilver/template/forum_fn.js",
+			"phpBB/**/*.min.js",
 			"phpBB/phpbb/**/*.js",
 			"phpBB/tests/**/*.js"
 		],
@@ -32,10 +32,6 @@
 				"error",
 				"always-multiline"
 			],
-			"max-params": [
-				"error",
-				6
-			],
 			"block-spacing": "error",
 			"array-bracket-spacing": [
 				"error",
@@ -100,13 +96,15 @@
 		"autoprefixer": "^10.2.5",
 		"cssnano": "^5.0.2",
 		"eslint": "^7.27.0",
+		"eslint-config-xo": "^0.36.0",
 		"gulp": "^4.0.2",
-		"gulp-concat-css": "^3.1.0",
+		"gulp-concat-css": "^1.2.0",
 		"gulp-postcss": "^9.0.0",
 		"gulp-rename": "^2.0.0",
+		"gulp-sourcemaps": "^2.6.5",
 		"postcss": "^8.2.15",
 		"postcss-sorting": "^6.0.0",
-		"stylelint": "^13.13.1",
-		"stylelint-order": "^4.1.0"
+		"stylelint": "^9.2.0",
+		"stylelint-order": "^0.8.1"
 	}
 }