diff --git a/packages/jss-preset-default/package.json b/packages/jss-preset-default/package.json
index b9513c524..92aa4c270 100644
--- a/packages/jss-preset-default/package.json
+++ b/packages/jss-preset-default/package.json
@@ -6,6 +6,7 @@
   "homepage": "https://cssinjs.org/jss-preset-default",
   "main": "dist/jss-preset-default.cjs.js",
   "module": "dist/jss-preset-default.esm.js",
+  "unpkg": "dist/jss-preset-default.bundle.js",
   "typings": "./src/index.d.ts",
   "author": {
     "name": "Oleg Slobodskoi",
diff --git a/packages/jss/package.json b/packages/jss/package.json
index 25fc2178f..8eff25179 100644
--- a/packages/jss/package.json
+++ b/packages/jss/package.json
@@ -6,6 +6,7 @@
   "homepage": "https://cssinjs.org/",
   "main": "dist/jss.cjs.js",
   "module": "dist/jss.esm.js",
+  "unpkg": "dist/jss.bundle.js",
   "typings": "./src/index.d.ts",
   "author": {
     "name": "Oleg Slobodskoi",
diff --git a/rollup.config.js b/rollup.config.js
index d9dd86001..3d0fac8d8 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -135,5 +135,22 @@ export default [
       replace({'process.env.VERSION': JSON.stringify(pkg.version)}),
       sizeSnapshot(snapshotOptions)
     ]
+  },
+
+  {
+    input,
+    output: {file: pkg.unpkg, format: 'esm'},
+    plugins: [
+      nodeResolve(),
+      babel(getBabelOptions({useESModules: true})),
+      commonjs(commonjsOptions),
+      nodeGlobals({process: false}),
+      replace({
+        'process.env.VERSION': JSON.stringify(pkg.version)
+      })
+      // sizeSnapshot barfs with
+      // [!] (size-snapshot plugin) Error: Error transforming bundle with 'size-snapshot' plugin: ModuleNotFoundError: Module not found: Error: Can't resolve 'jss/node_modules/rollup-plugin-size-snapshot/node_modules/webpack/buildin/harmony-module.js' in '/'
+      // sizeSnapshot(snapshotOptions),
+    ]
   }
 ]