diff --git a/index.js b/index.js
index a19319a..479ba95 100644
--- a/index.js
+++ b/index.js
@@ -1,4 +1,4 @@
-var assert = require('nanoassert')
+import assert from 'nanoassert'
 
 var placeholder = {
   cancel: noop,
@@ -11,9 +11,7 @@ var placeholder = {
   }
 }
 
-module.exports = animate
-
-function animate (keyframes, timingProperties) {
+export default function animate (keyframes, timingProperties) {
   assert.equal(typeof keyframes, 'object', 'nanoanimation: keyframes should be an array or an object')
   assert.ok(typeof timingProperties === 'object' || typeof timingProperties === 'number', 'nanoanimation: timingProperties should be type object or number')
 
diff --git a/package.json b/package.json
index 2989151..d4652d8 100644
--- a/package.json
+++ b/package.json
@@ -3,9 +3,15 @@
   "description": "Safety wrapper around the Web Animation API",
   "repository": "choojs/nanoanimation",
   "version": "2.1.0",
+  "source": "index.js",
+  "main": "dist/nanoanimation.js",
+  "module": "dist/nanoanimation.mjs",
   "scripts": {
     "deps": "dependency-check . && dependency-check . --extra --no-dev",
     "start": "node .",
+    "build": "microbundle -o dist -f cjs,es",
+    "prepublishOnly": "npm run build",
+    "pretest": "npm run build",
     "test": "standard && npm run deps"
   },
   "dependencies": {
@@ -13,6 +19,7 @@
   },
   "devDependencies": {
     "dependency-check": "^2.9.1",
+    "microbundle": "^0.6.0",
     "standard": "^10.0.3",
     "tape": "^4.8.0"
   },