diff --git a/package.json b/package.json
index e55f216..698cac3 100644
--- a/package.json
+++ b/package.json
@@ -46,7 +46,7 @@
 		"object"
 	],
 	"devDependencies": {
-		"@sindresorhus/is": "^0.5.0",
+		"@sindresorhus/is": "^0.6.0",
 		"@types/node": "^8.0.31",
 		"ava": "*",
 		"awesome-typescript-loader": "^3.2.3",
@@ -57,7 +57,7 @@
 		"lodash.isequal": "^4.5.0",
 		"nyc": "^11.2.1",
 		"tslint": "^5.8.0",
-		"tslint-xo": "^0.2.0",
+		"tslint-xo": "^0.3.0",
 		"typescript": "^2.6.1",
 		"vali-date": "^1.0.0",
 		"webpack": "^3.8.1"
diff --git a/webpack.config.js b/webpack.config.js
index 151f114..69fc618 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -6,6 +6,7 @@ const BannerWebpackPlugin = require('banner-webpack-plugin');
 module.exports = {
 	entry: './source/index.ts',
 	target: 'node',
+	node: false, // Disables polyfill Node.js globals
 	devtool: 'source-map',
 	output: {
 		filename: 'dist/index.js',
@@ -20,7 +21,7 @@ module.exports = {
 		// For CommonJS default export support
 		new BannerWebpackPlugin({
 			chunks: {
-				'main': {
+				main: {
 					afterContent: `module.exports = ow.default;\nmodule.exports.default = ow.default;\n//# sourceMappingURL=index.js.map`,
 					removeAfter: '//# sourceMappingURL=index.js.map'
 				}