diff --git a/package.json b/package.json
index b0b5c98d6..aa46a6f92 100644
--- a/package.json
+++ b/package.json
@@ -25,8 +25,10 @@
     "mocha": "3.2.0",
     "mocha-lcov-reporter": "1.2.0",
     "nyc": "10.0.0",
-    "rollup": "0.39.0",
+    "rollup": "^0.41.4",
     "rollup-plugin-babel": "2.7.1",
+    "rollup-plugin-commonjs": "^7.0.0",
+    "rollup-plugin-node-resolve": "^2.0.0",
     "rollup-plugin-replace": "1.1.1",
     "uglify-js": "2.7.5"
   },
diff --git a/rollup.config.es6.js b/rollup.config.es6.js
index 64ac3149d..74de513ca 100644
--- a/rollup.config.es6.js
+++ b/rollup.config.es6.js
@@ -6,6 +6,7 @@ import commonjs from 'rollup-plugin-commonjs'
 
 export default {
   entry: 'src/jsts.js',
+  format: 'es',
   exports: 'named',
   plugins: [
     replace({