diff --git a/signer.js b/signer.js
index 38bad49..a19ceb0 100644
--- a/signer.js
+++ b/signer.js
@@ -6,7 +6,7 @@
 // The MIT License
 // Copyright (c) 2012–2022 LearnBoost <tj@learnboost.com> and other contributors;
 
-const crypto = require('crypto')
+const crypto = require('node:crypto')
 
 const base64PaddingRE = /=/g
 
diff --git a/test/cookie.test.js b/test/cookie.test.js
index 6b08813..767302a 100644
--- a/test/cookie.test.js
+++ b/test/cookie.test.js
@@ -1,7 +1,6 @@
 'use strict'
 
-const tap = require('tap')
-const test = tap.test
+const { test } = require('tap')
 const Fastify = require('fastify')
 const sinon = require('sinon')
 const { sign, unsign } = require('../signer')
diff --git a/test/signer.test.js b/test/signer.test.js
index 9b96faa..1ac7224 100644
--- a/test/signer.test.js
+++ b/test/signer.test.js
@@ -2,7 +2,7 @@
 
 const { test } = require('tap')
 const sinon = require('sinon')
-const crypto = require('crypto')
+const crypto = require('node:crypto')
 const { Signer, sign, unsign } = require('../signer')
 
 test('default', t => {