diff --git a/Gruntfile.coffee b/Gruntfile.coffee
deleted file mode 100644
index e01d66d..0000000
--- a/Gruntfile.coffee
+++ /dev/null
@@ -1,38 +0,0 @@
-module.exports = (grunt) ->
-  grunt.initConfig
-    pkg: grunt.file.readJSON('package.json')
-
-    coffee:
-      glob_to_multiple:
-        expand: true
-        cwd: 'src'
-        src: ['*.coffee']
-        dest: 'lib'
-        ext: '.js'
-
-    coffeelint:
-      options:
-        no_empty_param_list:
-          level: 'error'
-        max_line_length:
-          level: 'ignore'
-
-      src: ['src/*.coffee']
-      test: ['spec/*.coffee']
-
-    shell:
-      test:
-        command: 'node node_modules/jasmine-focused/bin/jasmine-focused --captureExceptions --coffee spec'
-        options:
-          stdout: true
-          stderr: true
-          failOnError: true
-
-  grunt.loadNpmTasks('grunt-contrib-coffee')
-  grunt.loadNpmTasks('grunt-shell')
-  grunt.loadNpmTasks('grunt-coffeelint')
-
-  grunt.registerTask 'clean', -> require('fs-plus').removeSync('lib')
-  grunt.registerTask('lint', ['coffeelint:src', 'coffeelint:test'])
-  grunt.registerTask('default', ['coffeelint', 'coffee'])
-  grunt.registerTask('test', ['default', 'coffeelint:test', 'shell:test'])
diff --git a/package.json b/package.json
index 24cb667..8d3068f 100644
--- a/package.json
+++ b/package.json
@@ -4,8 +4,11 @@
   "description": "Less compile cache",
   "main": "./lib/less-cache",
   "scripts": {
-    "prepublish": "grunt clean lint coffee",
-    "test": "grunt test"
+    "clean": "shx rm -rf lib",
+    "test": "jasmine-focused --captureExceptions --coffee spec",
+    "coffee": "npm run clean && shx cp -r src lib && coffee -c -M -o lib lib && shx rm -rf lib/*.coffee",
+    "build": "npm run coffee",
+    "prepare": "npm run build"
   },
   "repository": {
     "type": "git",
@@ -33,14 +36,12 @@
     "walkdir": "0.0.11"
   },
   "devDependencies": {
+    "coffeescript": "^1.12.7",
     "fstream": "^1.0.10",
-    "grunt": "^1.0.1",
-    "grunt-cli": "^1.2.0",
-    "grunt-coffeelint": "0.0.16",
-    "grunt-contrib-coffee": "^1.0.0",
-    "grunt-shell": "^1.3.0",
-    "jasmine-focused": "1.x",
+    "jasmine-focused": "^1",
     "temp": "^0.8.3",
-    "tmp": "0.0.28"
+    "tmp": "0.0.28",
+    "shx": "^0.3.2",
+    "cross-env": "^7.0.2"
   }
 }