diff --git a/Gruntfile.js b/Gruntfile.js
index 71d014b..11d2243 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -22,9 +22,6 @@ module.exports = function ( grunt ) {
 			]
 		},
 		stylelint: {
-			options: {
-				syntax: 'css'
-			},
 			src: [
 				'**/*.css',
 				'!node_modules/**'
diff --git a/package.json b/package.json
index dfaabc7..96e6930 100644
--- a/package.json
+++ b/package.json
@@ -30,9 +30,9 @@
 		"grunt": "1.4",
 		"grunt-contrib-qunit": "4.0.0",
 		"grunt-eslint": "23.0.0",
-		"grunt-stylelint": "0.16.0",
-		"stylelint": "13.13.1",
-		"stylelint-config-wikimedia": "0.10.3"
+		"grunt-stylelint": "0.17.0",
+		"stylelint": "14.3.0",
+		"stylelint-config-wikimedia": "0.11.1"
 	},
 	"repository": {
 		"type": "git",