diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index c1870cf..441975c 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -10,12 +10,10 @@ jobs:
       fail-fast: false
       matrix:
         node-version:
-          - 14
-          - 12
-          - 10
+          - 16
     steps:
       - uses: actions/checkout@v2
-      - uses: actions/setup-node@v1
+      - uses: actions/setup-node@v2
         with:
           node-version: ${{ matrix.node-version }}
       - run: npm install
diff --git a/index.d.ts b/index.d.ts
index df018a4..1906916 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -8,8 +8,8 @@ By default, the name of the current operating system is returned.
 
 @example
 ```
-import * as os fron 'os';
-import osName = require('os-name');
+import os from 'node:os';
+import osName from 'os-name';
 
 // On a macOS Sierra system
 
@@ -29,7 +29,5 @@ osName('win32', '6.3.9600');
 //=> 'Windows 8.1'
 ```
 */
-declare function osName(): string;
-declare function osName(platform: NodeJS.Platform, release: string): string;
-
-export = osName;
+export default function osName(): string;
+export default function osName(platform: NodeJS.Platform, release: string): string;
diff --git a/index.js b/index.js
index 6e25f86..ec4a55f 100644
--- a/index.js
+++ b/index.js
@@ -1,9 +1,8 @@
-'use strict';
-const os = require('os');
-const macosRelease = require('macos-release');
-const winRelease = require('windows-release');
+import os from 'node:os';
+import macosRelease from 'macos-release';
+import windowsRelease from 'windows-release';
 
-const osName = (platform, release) => {
+export default function osName(platform, release) {
 	if (!platform && release) {
 		throw new Error('You can\'t specify a `release` without specifying `platform`');
 	}
@@ -40,11 +39,9 @@ const osName = (platform, release) => {
 			release = os.release();
 		}
 
-		id = release ? winRelease(release) : '';
+		id = release ? windowsRelease(release) : '';
 		return 'Windows' + (id ? ' ' + id : '');
 	}
 
 	return platform;
-};
-
-module.exports = osName;
+}
diff --git a/index.test-d.ts b/index.test-d.ts
index dfa1e71..5973384 100644
--- a/index.test-d.ts
+++ b/index.test-d.ts
@@ -1,9 +1,9 @@
+import os from 'node:os';
 import {expectType} from 'tsd';
-import * as os from 'os';
-import osName = require('.');
+import osName from './index.js';
 
 expectType<string>(osName());
-expectType<string>(osName(os.platform(), os.release()));
+expectType<string>(osName(os.platform(), os.release())); // eslint-disable-line @typescript-eslint/no-unsafe-member-access
 expectType<string>(osName('darwin', '14.0.0'));
 expectType<string>(osName('linux', '3.13.0-24-generic'));
 expectType<string>(osName('win32', '6.3.9600'));
diff --git a/package.json b/package.json
index d68b29a..50a1086 100644
--- a/package.json
+++ b/package.json
@@ -10,8 +10,10 @@
 		"email": "sindresorhus@gmail.com",
 		"url": "https://sindresorhus.com"
 	},
+	"type": "module",
+	"exports": "./index.js",
 	"engines": {
-		"node": ">=10"
+		"node": "^12.20.0 || ^14.13.1 || >=16.0.0"
 	},
 	"scripts": {
 		"test": "xo && ava && tsd"
@@ -34,13 +36,13 @@
 		"linux"
 	],
 	"dependencies": {
-		"macos-release": "^2.5.0",
-		"windows-release": "^4.0.0"
+		"macos-release": "^3.0.0",
+		"windows-release": "^5.0.0"
 	},
 	"devDependencies": {
-		"@types/node": "^14.6.2",
-		"ava": "^2.4.0",
-		"tsd": "^0.13.1",
-		"xo": "^0.33.0"
+		"@types/node": "^16.6.0",
+		"ava": "^3.15.0",
+		"tsd": "^0.17.0",
+		"xo": "^0.44.0"
 	}
 }
diff --git a/readme.md b/readme.md
index 4aabe9d..965c532 100644
--- a/readme.md
+++ b/readme.md
@@ -14,8 +14,8 @@ $ npm install os-name
 ## Usage
 
 ```js
-const os = require('os');
-const osName = require('os-name');
+import os from 'node:os';
+import osName from 'os-name';
 
 // On a macOS Sierra system
 
diff --git a/test.js b/test.js
index 87fcada..21981d1 100644
--- a/test.js
+++ b/test.js
@@ -1,6 +1,6 @@
-import os from 'os';
+import os from 'node:os';
 import test from 'ava';
-import osName from '.';
+import osName from './index.js';
 
 test('main', t => {
 	t.true(osName().length > 0);