diff --git a/gruntfile.js b/gruntfile.js
deleted file mode 100644
index acf34b67..00000000
--- a/gruntfile.js
+++ /dev/null
@@ -1,189 +0,0 @@
-const sass = require('node-sass');
-
-module.exports = grunt => {
-
-	require('load-grunt-tasks')(grunt);
-
-	let port = grunt.option('port') || 8000;
-	let root = grunt.option('root') || '.';
-
-	if (!Array.isArray(root)) root = [root];
-
-	// Project configuration
-	grunt.initConfig({
-		pkg: grunt.file.readJSON('package.json'),
-		meta: {
-			banner:
-				'/*!\n' +
-				' * reveal.js <%= pkg.version %> (<%= grunt.template.today("yyyy-mm-dd, HH:MM") %>)\n' +
-				' * http://revealjs.com\n' +
-				' * MIT licensed\n' +
-				' *\n' +
-				' * Copyright (C) 2020 Hakim El Hattab, http://hakim.se\n' +
-				' */'
-		},
-
-		qunit: {
-			files: [ 'test/*.html' ]
-		},
-
-		uglify: {
-			options: {
-				banner: '<%= meta.banner %>\n',
-				ie8: true
-			},
-			build: {
-				src: 'js/reveal.js',
-				dest: 'js/reveal.min.js'
-			}
-		},
-
-		sass: {
-			options: {
-				implementation: sass,
-				sourceMap: false
-			},
-			core: {
-				src: 'css/reveal.scss',
-				dest: 'css/reveal.css'
-			},
-			themes: {
-				expand: true,
-				cwd: 'css/theme/source',
-				src: ['*.sass', '*.scss'],
-				dest: 'css/theme',
-				ext: '.css'
-			}
-		},
-
-		autoprefixer: {
-			core: {
-				src: 'css/reveal.css'
-			}
-		},
-
-		cssmin: {
-			options: {
-				compatibility: 'ie9'
-			},
-			compress: {
-				src: 'css/reveal.css',
-				dest: 'css/reveal.min.css'
-			}
-		},
-
-		jshint: {
-			options: {
-				curly: false,
-				eqeqeq: true,
-				immed: true,
-				esnext: true,
-				latedef: 'nofunc',
-				newcap: true,
-				noarg: true,
-				sub: true,
-				undef: true,
-				eqnull: true,
-				browser: true,
-				expr: true,
-				loopfunc: true,
-				globals: {
-					head: false,
-					module: false,
-					console: false,
-					unescape: false,
-					define: false,
-					exports: false,
-					require: false
-				}
-			},
-			files: [ 'gruntfile.js', 'js/reveal.js' ]
-		},
-
-		connect: {
-			server: {
-				options: {
-					port: port,
-					base: root,
-					livereload: true,
-					open: true,
-					useAvailablePort: true
-				}
-			}
-		},
-
-		zip: {
-			bundle: {
-				src: [
-					'index.html',
-					'css/**',
-					'js/**',
-					'lib/**',
-					'images/**',
-					'plugin/**',
-					'**.md'
-				],
-				dest: 'reveal-js-presentation.zip'
-			}
-		},
-
-		watch: {
-			js: {
-				files: [ 'gruntfile.js', 'js/reveal.js' ],
-				tasks: 'js'
-			},
-			theme: {
-				files: [
-					'css/theme/source/*.sass',
-					'css/theme/source/*.scss',
-					'css/theme/template/*.sass',
-					'css/theme/template/*.scss'
-				],
-				tasks: 'css-themes'
-			},
-			css: {
-				files: [ 'css/reveal.scss' ],
-				tasks: 'css-core'
-			},
-			test: {
-				files: [ 'test/*.html' ],
-				tasks: 'test'
-			},
-			html: {
-				files: root.map(path => path + '/*.html')
-			},
-			markdown: {
-				files: root.map(path => path + '/*.md')
-			},
-			options: {
-				livereload: true
-			}
-		}
-
-	});
-
-	// Default task
-	grunt.registerTask( 'default', [ 'css', 'js' ] );
-
-	// JS task
-	grunt.registerTask( 'js', [ 'jshint', 'uglify', 'qunit' ] );
-
-	// Theme CSS
-	grunt.registerTask( 'css-themes', [ 'sass:themes' ] );
-
-	// Core framework CSS
-	grunt.registerTask( 'css-core', [ 'sass:core', 'autoprefixer', 'cssmin' ] );
-
-	// All CSS
-	grunt.registerTask( 'css', [ 'sass', 'autoprefixer', 'cssmin' ] );
-
-	// Package presentation to archive
-	grunt.registerTask( 'package', [ 'default', 'zip' ] );
-
-	// Serve presentation locally
-	grunt.registerTask( 'serve', [ 'connect', 'watch' ] );
-
-	// Run tests
-	grunt.registerTask( 'test', [ 'jshint', 'qunit' ] );
-
-};