diff --git a/README.md b/README.md
index 74db733..381d6a0 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@ npm i import-without-cache
 ## Usage
 
 ```ts
-import { init, isSupported } from 'import-without-cache'
+import { clearCJSCache, init, isSupported } from 'import-without-cache'
 
 if (!isSupported) {
   throw new Error('import-without-cache is not supported in this environment.')
@@ -29,17 +29,21 @@ if (!isSupported) {
 const deregister = init()
 
 const mod = await import('some-module', { with: { cache: 'no' } })
+
+clearCJSCache() // Optional: clear CommonJS cache if needed
+
 // or
 const mod2 = await import(`no-cache://some-module`)
 
+expect(mod).not.toBe(mod2) // Different instances
+
 deregister() // Optional: deregister the hooks when no longer needed
 ```
 
 ## Known Limitations
 
 - Support Node.js since v22.15.0, and doesn't support Deno or Bun.
-- Only supports ESM modules.
-  - CommonJS cache can be cleared by `delete require.cache[require.resolve('module-name')]`.
+- Only supports ESM modules by default. CommonJS cache can be cleared by `clearCJSCache`.
 - `require(esm)` is not supported.
 
 ## Sponsors
diff --git a/src/index.ts b/src/index.ts
index 4e7eeb4..adc3877 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -53,6 +53,12 @@ export function init(): () => void {
   })
 }
 
+export function clearCJSCache(): void {
+  for (const key of Object.keys(require.cache)) {
+    delete require.cache[key]
+  }
+}
+
 function getParentUUID(parentURL: string | undefined) {
   if (!parentURL) return
   return new URL(parentURL).searchParams.get('no-cache') ?? undefined
diff --git a/tests/index.test.js b/tests/index.test.js
index f26ad24..53f61d4 100644
--- a/tests/index.test.js
+++ b/tests/index.test.js
@@ -1,17 +1,8 @@
 // @ts-check
 
 import assert from 'node:assert'
-import { createRequire } from 'node:module'
 import { test } from 'node:test'
-import { init } from '../dist/index.mjs'
-
-const require = createRequire(import.meta.url)
-
-function clearCJSCache() {
-  for (const key of Object.keys(require.cache)) {
-    delete require.cache[key]
-  }
-}
+import { clearCJSCache, init } from '../dist/index.mjs'
 
 test('import attributes', async () => {
   const deregister = init()