diff --git a/package.json b/package.json
index 441f3150..3097738d 100644
--- a/package.json
+++ b/package.json
@@ -96,7 +96,7 @@
     "tsimp": "^2.0.11",
     "tsm": "^2.3.0",
     "tsx": "^4.15.7",
-    "typescript": "5.5",
+    "typescript": "~5.9.3",
     "vite": "^7.0.0",
     "vitest": "^4.0.6"
   },
@@ -108,7 +108,14 @@
       "**/*.test.ts"
     ],
     "transform": {
-      "^.+\\.(ts|tsx)$": "ts-jest"
+      "^.+\\.(ts|tsx)$": [
+        "ts-jest",
+        {
+          "tsconfig": {
+            "esModuleInterop": true
+          }
+        }
+      ]
     }
   },
   "publishConfig": {
diff --git a/test/typescript-common/index.ts b/test/typescript-common/index.ts
index c8044cb6..f003330b 100644
--- a/test/typescript-common/index.ts
+++ b/test/typescript-common/index.ts
@@ -1,40 +1,33 @@
-'use script'
+'use strict'
 
-const { test: t } = require('node:test')
+const { test: testRunner } = require('node:test')
+const assert = require('node:assert/strict')
 const fastify = require('fastify')
-
 const basicApp = require('./basic/app.ts')
 
-t.plan(5)
-
-const app = fastify()
-
-app.register(basicApp)
+testRunner('integration test with fastify autoload', async (t: any) => {
+  const app = fastify()
+  app.register(basicApp)
 
-app.ready(async function (err) {
-  t.error(err)
+  await app.ready()
 
-  await app
-    .inject({
+  await t.test('should return javascript data', async () => {
+    const res = await app.inject({
       url: '/javascript',
     })
-    .then(function (res: any) {
-      t.equal(res.statusCode, 200)
-      t.same(JSON.parse(res.payload), { script: 'java' })
-    })
-    .catch((err) => {
-      t.error(err)
-    })
 
-  await app
-    .inject({
+    assert.strictEqual(res.statusCode, 200)
+    assert.deepStrictEqual(res.json(), { script: 'java' })
+  })
+
+  await t.test('should return typescript data', async () => {
+    const res = await app.inject({
       url: '/typescript',
     })
-    .then(function (res: any) {
-      t.equal(res.statusCode, 200)
-      t.same(JSON.parse(res.payload), { script: 'type' })
-    })
-    .catch((err) => {
-      t.error(err)
-    })
+
+    assert.strictEqual(res.statusCode, 200)
+    assert.deepStrictEqual(res.json(), { script: 'type' })
+  })
+
+  await app.close()
 })
diff --git a/test/typescript-jest/integration/instance.ts b/test/typescript-jest/integration/instance.ts
index 079340b4..1ae0d73c 100644
--- a/test/typescript-jest/integration/instance.ts
+++ b/test/typescript-jest/integration/instance.ts
@@ -7,7 +7,9 @@ app.register(basicApp)
 app.listen({
   port: Math.floor(Math.random() * 3000 + 3000)
 }, function (err) {
-  if (err) process.stderr.write('failed')
+  if (err) {
+    process.stderr.write('failed')
+  }
   process.stdout.write('success')
   app.close()
 })
diff --git a/test/typescript-jest/integration/integration.test.ts b/test/typescript-jest/integration/integration.test.ts
index 8bda51d5..7d1bc72f 100644
--- a/test/typescript-jest/integration/integration.test.ts
+++ b/test/typescript-jest/integration/integration.test.ts
@@ -1,11 +1,35 @@
 import { exec } from 'node:child_process'
+import { join } from 'node:path'
 
 describe('integration test', function () {
+  const isWindows = process.platform === 'win32'
+
   test.concurrent.each(['ts-node', 'ts-node-dev'])(
     'integration with %s',
     async function (instance) {
       await new Promise(function (resolve) {
-        const child = exec(`${instance} "${process.cwd()}/test/typescript-jest/integration/instance.ts"`)
+        const compilerOpts = JSON.stringify({
+          module: 'commonjs',
+          moduleResolution: 'node',
+          esModuleInterop: true
+        })
+
+        const optionsArg = isWindows
+          ? `"${compilerOpts.replace(/"/g, '\\"')}"`
+          : `'${compilerOpts}'`
+
+        const filePath = join(
+          process.cwd(),
+          'test',
+          'typescript-jest',
+          'integration',
+          'instance.ts'
+        )
+
+        const child = exec(
+          `npx ${instance} --compiler-options ${optionsArg} "${filePath}"`
+        )
+
         let stderr = ''
         child.stderr?.on('data', function (b) {
           stderr = stderr + b.toString()
@@ -14,6 +38,7 @@ describe('integration test', function () {
         child.stdout?.on('data', function (b) {
           stdout = stdout + b.toString()
         })
+
         child.once('close', function () {
           expect(stderr.includes('failed')).toStrictEqual(false)
           expect(stdout.includes('success')).toStrictEqual(true)
@@ -21,6 +46,6 @@ describe('integration test', function () {
         })
       })
     },
-    30000
+    isWindows ? 60000 : 30000
   )
 })
diff --git a/types/index.test-d.ts b/types/index.test-d.ts
index 80b05847..2843cb65 100644
--- a/types/index.test-d.ts
+++ b/types/index.test-d.ts
@@ -1,9 +1,11 @@
 import fastify, { FastifyInstance, FastifyPluginCallback } from 'fastify'
 import { expectType } from 'tsd'
+// eslint-disable-next-line import-x/no-duplicates
 import * as fastifyAutoloadStar from '..'
 import fastifyAutoloadDefault, { AutoloadPluginOptions, fastifyAutoload as fastifyAutoloadNamed } from '..'
 
-import fastifyAutoloadCjsImport = require('..')
+// eslint-disable-next-line import-x/no-duplicates
+import * as fastifyAutoloadCjsImport from '..'
 const fastifyAutoloadCjs = require('..')
 
 const app: FastifyInstance = fastify()