diff --git a/bin/index.js b/bin/index.js
index 4c43781..900ae54 100755
--- a/bin/index.js
+++ b/bin/index.js
@@ -1,13 +1,18 @@
 #!/usr/bin/env node
 
-const fs = require('fs');
-const { program } = require('commander');
-const path = require('path');
-const pkg = require('../package.json');
+import fs from 'fs';
+import { program } from 'commander';
+import { SassStyleTemplate } from '../lib/index.js';
+import path from 'path';
+import { fileURLToPath } from 'url';
 
-const SassStyleTemplate = require('../lib/index.js');
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
 
-const customTemplate = path.resolve('.sass-template.tmpl');
+const pkgPath = path.resolve(__dirname, '../package.json');
+const customTemplate = path.resolve(__dirname, '../.sass-template.tmpl');
+
+const pkg = JSON.parse(fs.readFileSync(pkgPath, 'utf8'));
 
 program
   .version(pkg.version, '-v, --version', 'show version number')
@@ -25,6 +30,6 @@ const template = fs.existsSync(customTemplate)
   ? fs.readFileSync(customTemplate, 'utf8')
   : undefined;
 
-const config = Object.assign({}, program.opts(), { template: template });
+const config = Object.assign({}, program.opts(), { template });
 
 new SassStyleTemplate(config);
diff --git a/lib/index.js b/lib/index.js
index be3517c..4252757 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -1,11 +1,14 @@
-const fs = require('fs');
-const glob = require('glob');
-const sass = require('sass');
-const path = require('path');
-const chokidar = require('chokidar');
-const mkdirp = require('mkdirp');
-const autoprefixer = require('autoprefixer');
-const postcss = require('postcss');
+import fs from 'fs';
+import path from 'path';
+import { globSync } from 'tinyglobby';
+import chokidar from 'chokidar';
+import { fileURLToPath } from 'url';
+import * as sass from 'sass';
+import autoprefixer from 'autoprefixer';
+import postcss from 'postcss';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.join(__filename, '../..');
 
 const color = {
   reset: '\x1b[0m',
@@ -17,7 +20,7 @@ const color = {
 
 const delimTemplate = /<%\s*content\s*%>/;
 
-class SassStyleTemplate {
+export class SassStyleTemplate {
   constructor({
     markerStart = 'const styles = css`',
     markerEnd = '`;',
@@ -27,7 +30,7 @@ class SassStyleTemplate {
     jsFile = 'js',
     destination = undefined,
     template = fs.readFileSync(
-      `${__dirname}/../tpls/sass-template.tmpl`,
+      path.join(__dirname, 'tpls/sass-template.tmpl'),
       'utf8'
     ),
   } = {}) {
@@ -41,7 +44,8 @@ class SassStyleTemplate {
       destination,
       template,
     };
-    this.globFiles = glob.sync(`{${this.options.customGlob},}`);
+
+    this.globFiles = globSync(this.options.customGlob.split(','));
 
     this.init();
   }
@@ -64,16 +68,16 @@ class SassStyleTemplate {
     return this._fileInfo;
   }
 
-  set fileInfo(fileInfo = {}) {
-    this._fileInfo = fileInfo;
+  set fileInfo(fileInfo) {
+    this._fileInfo = fileInfo || {};
   }
 
   get globFiles() {
     return this._globFiles;
   }
 
-  set globFiles(files = []) {
-    this._globFiles = files;
+  set globFiles(files) {
+    this._globFiles = files || [];
   }
 
   cleanDestinationPath() {
@@ -87,8 +91,7 @@ class SassStyleTemplate {
     if (lastCharacter === path.sep) {
       strFinal = strFinal.slice(0, strFinal.length - 1);
     }
-    mkdirp.sync(strFinal);
-
+    fs.mkdirSync(strFinal, { recursive: true });
     return `${path.resolve(strFinal)}`;
   }
 
@@ -156,6 +159,7 @@ class SassStyleTemplate {
   }
 
   watchSass(glob) {
+    console.log(`Watching ${glob}`);
     const watcher = chokidar.watch(glob, { ignoreInitial: true });
 
     watcher.on('change', () => {
@@ -194,7 +198,7 @@ class SassStyleTemplate {
   }
 
   updateGlob() {
-    this.globFiles = glob.sync(`{${this.options.customGlob}}`);
+    this.globFiles = globSync(this.options.customGlob.split(','));
   }
 
   globSassFile(cb) {
@@ -204,9 +208,7 @@ class SassStyleTemplate {
   }
 
   init() {
-    this.watchSass(this.options.customGlob.split(','));
+    this.watchSass(this.globFiles);
     this.globSassFile(this.renderStylesTemplate);
   }
 }
-
-module.exports = SassStyleTemplate;
diff --git a/package.json b/package.json
index 0a6ee68..a39e809 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@blockquote/sass-style-template",
-  "version": "3.0.5",
+  "version": "4.0.0-rc.1",
   "description": "SASS and LitElement for creating Web Components",
   "keywords": [
     "LitElement",
@@ -19,6 +19,7 @@
     "url": "https://github.com/oscarmarina/sass-style-template"
   },
   "main": "./lib/index.js",
+  "type": "module",
   "bin": {
     "sass-style-template": "./bin/index.js"
   },
@@ -28,10 +29,9 @@
   },
   "dependencies": {
     "autoprefixer": "^10.4.20",
-    "chokidar": "^3.6.0",
+    "chokidar": "^4.0.1",
     "commander": "^12.1.0",
-    "glob": "^11.0.0",
-    "mkdirp": "^3.0.1",
+    "tinyglobby": "^0.2.10",
     "postcss": "^8.4.47",
     "sass": "^1.80.6"
   },