diff --git a/package.json b/package.json
index ce840facbc..2ce6da688c 100644
--- a/package.json
+++ b/package.json
@@ -71,7 +71,7 @@
     "test:types": "tsc --noEmit",
     "test:lint": "eslint .",
     "test:spec": "vitest run",
-    "patch-d-ts": "node -e \"var {entries}=require('./rollup.config.js');require('shelljs').find('dist/**/*.d.ts').forEach(f=>{entries.forEach(({find,replacement})=>require('shelljs').sed('-i',new RegExp(' from \\''+find.source.slice(0,-1)+'\\';$'),' from \\''+replacement+'\\';',f));require('shelljs').sed('-i',/ from '(\\.[^']+)\\.ts';$/,' from \\'\\$1\\';',f)})\"",
+    "patch-d-ts": "node --input-type=module -e \"import { entries } from './rollup.config.mjs'; import shelljs from 'shelljs'; const { find, sed } = shelljs; find('dist/**/*.d.ts').forEach(f => { entries.forEach(({ find, replacement }) => sed('-i', new RegExp(' from \\'' + find.source.slice(0, -1) + '\\';$'), ' from \\'' + replacement + '\\';', f)); sed('-i', / from '(\\.[^']+)\\.ts';$/, ' from \\'\\$1\\';', f); });\"",
     "copy": "shx cp -r dist/src/* dist/esm && shx cp -r dist/src/* dist && shx rm -rf dist/src && shx rm -rf dist/{src,tests} && shx cp package.json readme.md LICENSE dist && json -I -f dist/package.json -e \"this.private=false; this.devDependencies=undefined; this.optionalDependencies=undefined; this.scripts=undefined; this.prettier=undefined;\"",
     "patch-old-ts": "shx touch dist/ts_version_4.5_and_above_is_required.d.ts",
     "patch-esm-ts": "node -e \"require('shelljs').find('dist/esm/**/*.d.ts').forEach(f=>{var f2=f.replace(/\\.ts$/,'.mts');require('fs').renameSync(f,f2);require('shelljs').sed('-i',/ from '(\\.[^']+)';$/,' from \\'\\$1.mjs\\';',f2);require('shelljs').sed('-i',/^declare module '(\\.[^']+)'/,'declare module \\'\\$1.mjs\\'',f2)})\""
diff --git a/rollup.config.js b/rollup.config.mjs
similarity index 81%
rename from rollup.config.js
rename to rollup.config.mjs
index acbb0946bf..6b7296eec8 100644
--- a/rollup.config.js
+++ b/rollup.config.mjs
@@ -1,14 +1,14 @@
-/* eslint-disable no-undef */
-const path = require('path')
-const alias = require('@rollup/plugin-alias')
-const resolve = require('@rollup/plugin-node-resolve')
-const replace = require('@rollup/plugin-replace')
-const typescript = require('@rollup/plugin-typescript')
-const { default: esbuild } = require('rollup-plugin-esbuild')
+/*global process*/
+import path from 'path'
+import alias from '@rollup/plugin-alias'
+import resolve from '@rollup/plugin-node-resolve'
+import replace from '@rollup/plugin-replace'
+import typescript from '@rollup/plugin-typescript'
+import esbuild from 'rollup-plugin-esbuild'
 
 const extensions = ['.js', '.ts', '.tsx']
 const { root } = path.parse(process.cwd())
-const entries = [
+export const entries = [
   { find: /.*\/vanilla\/shallow\.ts$/, replacement: 'zustand/vanilla/shallow' },
   { find: /.*\/react\/shallow\.ts$/, replacement: 'zustand/react/shallow' },
   { find: /.*\/vanilla\.ts$/, replacement: 'zustand/vanilla' },
@@ -50,7 +50,9 @@ function createESMConfig(input, output) {
     output: { file: output, format: 'esm' },
     external,
     plugins: [
-      alias({ entries: entries.filter((e) => !e.find.test(input)) }),
+      alias({
+        entries: entries.filter((entry) => !entry.find.test(input)),
+      }),
       resolve({ extensions }),
       replace({
         ...(output.endsWith('.js')
@@ -78,7 +80,9 @@ function createCommonJSConfig(input, output) {
     output: { file: output, format: 'cjs' },
     external,
     plugins: [
-      alias({ entries: entries.filter((e) => !e.find.test(input)) }),
+      alias({
+        entries: entries.filter((entry) => !entry.find.test(input)),
+      }),
       resolve({ extensions }),
       replace({
         'import.meta.env?.MODE': 'process.env.NODE_ENV',
@@ -90,7 +94,7 @@ function createCommonJSConfig(input, output) {
   }
 }
 
-module.exports = function (args) {
+export default function (args) {
   let c = Object.keys(args).find((key) => key.startsWith('config-'))
   if (c) {
     c = c.slice('config-'.length).replace(/_/g, '/')
@@ -103,5 +107,3 @@ module.exports = function (args) {
     createESMConfig(`src/${c}.ts`, `dist/esm/${c}.mjs`),
   ]
 }
-
-module.exports.entries = []