diff --git a/.travis.yml b/.travis.yml
index c94c268..d00185a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,5 +2,5 @@ language: node_js
 node_js:
   - 0.8
 before_script:
-  - "npm install -g grunt"
+  - "npm install -g grunt-cli"
   - "npm install"
diff --git a/Gruntfile.js b/Gruntfile.js
new file mode 100644
index 0000000..d3274cf
--- /dev/null
+++ b/Gruntfile.js
@@ -0,0 +1,64 @@
+module.exports = function (grunt) {
+  require('matchdep').filterDev('grunt-*').forEach(grunt.loadNpmTasks);
+
+  grunt.initConfig({
+    coffee: {
+      lib: {
+        options: { bare: false },
+        files: {
+          'morris.js': ['build/morris.coffee']
+        }
+      },
+      spec: {
+        options: { bare: true },
+        files: {
+          'build/spec.js': ['build/spec.coffee']
+        }
+      },
+    },
+    concat: {
+      'build/morris.coffee': [
+        'lib/morris.coffee',
+        'lib/morris.grid.coffee',
+        'lib/morris.hover.coffee',
+        'lib/morris.line.coffee',
+        'lib/morris.area.coffee',
+        'lib/morris.bar.coffee',
+        'lib/morris.donut.coffee'
+      ],
+      'build/spec.coffee': ['spec/support/**/*.coffee', 'spec/lib/**/*.coffee']
+    },
+    less: {
+      all: {
+        src: 'less/*.less',
+        dest: 'morris.css',
+        options: {
+          compress: true
+        }
+      }
+    },
+    uglify: {
+      build: {
+        files: {
+          'morris.min.js': 'morris.js'
+        }
+      }
+    },
+    mocha: {
+      index: ['spec/specs.html'],
+      options: {run: true}
+    },
+    watch: {
+      all: {
+        files: ['lib/**/*.coffee', 'spec/lib/**/*.coffee', 'spec/support/**/*.coffee', 'less/**/*.less'],
+        tasks: 'default'
+      },
+      dev: {
+        files:  'lib/*.coffee' ,
+        tasks: ['concat:build/morris.coffee', 'coffee:lib']
+      }
+    },
+  });
+
+  grunt.registerTask('default', ['concat', 'coffee', 'less', 'uglify', 'mocha']);
+};
\ No newline at end of file
diff --git a/grunt.js b/grunt.js
deleted file mode 100644
index f2a73b6..0000000
--- a/grunt.js
+++ /dev/null
@@ -1,56 +0,0 @@
-module.exports = function (grunt) {
-  grunt.initConfig({
-    coffee: {
-      lib: {
-        src: ['build/morris.coffee'],
-        dest: '.',
-        options: { bare: false }
-      },
-      spec: {
-        src: ['build/spec.coffee'],
-        dest: 'build',
-        options: { bare: true }
-      }
-    },
-    concat: {
-      'build/morris.coffee': [
-        'lib/morris.coffee',
-        'lib/morris.grid.coffee',
-        'lib/morris.hover.coffee',
-        'lib/morris.line.coffee',
-        'lib/morris.area.coffee',
-        'lib/morris.bar.coffee',
-        'lib/morris.donut.coffee'
-      ],
-      'build/spec.coffee': ['spec/support/**/*.coffee', 'spec/lib/**/*.coffee']
-    },
-    less: {
-      all: {
-        src: 'less/*.less',
-        dest: 'morris.css',
-        options: {
-          compress: true
-        }
-      }
-    },
-    min: {
-      'morris.min.js': 'morris.js'
-    },
-    mocha: {
-      spec: {
-        src: 'spec/specs.html',
-        run: true
-      }
-    },
-    watch: {
-      files: ['lib/**/*.coffee', 'spec/lib/**/*.coffee', 'spec/support/**/*.coffee', 'less/**/*.less'],
-      tasks: 'default'
-    }
-  });
-
-  grunt.loadNpmTasks('grunt-coffee');
-  grunt.loadNpmTasks('grunt-mocha');
-  grunt.loadNpmTasks('grunt-contrib-less');
-
-  grunt.registerTask('default', 'concat coffee less min mocha');
-};
diff --git a/package.json b/package.json
index 7948066..cfad052 100644
--- a/package.json
+++ b/package.json
@@ -15,12 +15,19 @@
     "url": "https://github.com/oesmith/morris.js/issues"
   },
   "devDependencies": {
-    "grunt-coffee": "~> 0.0.6",
-    "grunt-mocha": "~> 0.1.7",
-    "grunt-contrib-less": "~> 0.3.2",
-    "grunt": "~> 0.3.17"
+    "matchdep": "~0.1.2",
+    "grunt": "~0.4.1",
+    "grunt-mocha": "~0.4.1",
+    "grunt-contrib-concat": "~0.3.0",
+    "grunt-contrib-coffee": "~0.7.0",
+    "grunt-contrib-uglify": "~0.2.4",
+    "grunt-contrib-less": "~0.7.0",
+    "grunt-contrib-watch": "~0.5.3"
   },
   "scripts": {
-    "test": "./node_modules/.bin/grunt coffee mocha"
+    "test": "grunt coffee mocha"
+  },
+  "engines": {
+    "node": ">=0.8 <0.11"
   }
 }