diff --git a/ci/remove-deps-4-old-node.js b/ci/remove-deps-4-old-node.js
index 4cf9deefe..e8ff6f617 100644
--- a/ci/remove-deps-4-old-node.js
+++ b/ci/remove-deps-4-old-node.js
@@ -1,5 +1,5 @@
-const fs = require('fs');
-const path = require('path');
+const fs = require('node:fs');
+const path = require('node:path');
 const package = require('../package.json');
 
 const UNSUPPORT_DEPS_4_OLD = new Set([
diff --git a/package.json b/package.json
index 4631c72b3..84aff4b96 100644
--- a/package.json
+++ b/package.json
@@ -27,27 +27,27 @@
     "formidable": "^2.1.2",
     "methods": "^1.1.2",
     "mime": "2.6.0",
-    "qs": "^6.11.0",
-    "semver": "^7.3.8"
+    "qs": "^6.11.2",
+    "semver": "^7.5.4"
   },
   "devDependencies": {
-    "@babel/cli": "^7.20.7",
-    "@babel/core": "^7.20.12",
-    "@babel/plugin-transform-runtime": "^7.19.6",
-    "@babel/preset-env": "^7.20.2",
-    "@babel/runtime": "^7.20.13",
+    "@babel/cli": "^7.22.10",
+    "@babel/core": "^7.22.10",
+    "@babel/plugin-transform-runtime": "^7.22.10",
+    "@babel/preset-env": "^7.22.10",
+    "@babel/runtime": "^7.22.10",
     "@commitlint/cli": "17",
     "@commitlint/config-conventional": "17",
-    "Base64": "^1.1.0",
+    "Base64": "^1.2.0",
     "babelify": "^10.0.0",
     "basic-auth-connect": "^1.0.0",
-    "body-parser": "^1.20.1",
+    "body-parser": "^1.20.2",
     "browserify": "^17.0.0",
     "cookie-parser": "^1.4.6",
     "cross-env": "^7.0.3",
-    "eslint": "^8.32.0",
+    "eslint": "^8.47.0",
     "eslint-config-xo-lass": "2",
-    "eslint-plugin-compat": "4.0.2",
+    "eslint-plugin-compat": "4.1.4",
     "eslint-plugin-node": "^11.1.0",
     "express": "^4.18.2",
     "express-session": "^1.17.3",
@@ -65,7 +65,7 @@
     "should": "^13.2.3",
     "should-http": "^0.1.1",
     "tinyify": "3.0.0",
-    "xo": "^0.53.1",
+    "xo": "^0.56.0",
     "zuul": "^3.12.0"
   },
   "engines": {
diff --git a/src/client.js b/src/client.js
index 9260bcbea..b632bf626 100644
--- a/src/client.js
+++ b/src/client.js
@@ -75,7 +75,9 @@ request.getXHR = () => {
  * @api private
  */
 
-const trim = ''.trim ? (s) => s.trim() : (s) => s.replace(/(^\s*|\s*$)/g, '');
+const trim = ''.trim
+  ? (s) => s.trim()
+  : (s) => s.replaceAll(/(^\s*|\s*$)/g, '');
 
 /**
  * Serialize the given `obj`.
@@ -310,7 +312,7 @@ function Response(request_) {
   this.text =
     (this.req.method !== 'HEAD' &&
       (this.xhr.responseType === '' || this.xhr.responseType === 'text')) ||
-    typeof this.xhr.responseType === 'undefined'
+    this.xhr.responseType === undefined
       ? this.xhr.responseText
       : null;
   this.statusText = this.req.xhr.statusText;
@@ -423,7 +425,7 @@ function Request(method, url) {
       if (self.xhr) {
         // ie9 doesn't have 'response' property
         error.rawResponse =
-          typeof self.xhr.responseType === 'undefined'
+          self.xhr.responseType === undefined
             ? self.xhr.responseText
             : self.xhr.response;
         // issue #876: return the http status code if the response parsing fails
@@ -867,7 +869,7 @@ Request.prototype._end = function () {
 
   // IE11 xhr.send(undefined) sends 'undefined' string as POST payload (instead of nothing)
   // We need null here if data is undefined
-  xhr.send(typeof data === 'undefined' ? null : data);
+  xhr.send(data === undefined ? null : data);
 };
 
 request.agent = () => new Agent();
diff --git a/src/node/agent.js b/src/node/agent.js
index 0761dc689..67556a507 100644
--- a/src/node/agent.js
+++ b/src/node/agent.js
@@ -3,7 +3,7 @@
  */
 
 // eslint-disable-next-line node/no-deprecated-api
-const { parse } = require('url');
+const { parse } = require('node:url');
 const { CookieJar } = require('cookiejar');
 const { CookieAccessInfo } = require('cookiejar');
 const methods = require('methods');
@@ -66,7 +66,7 @@ Agent.prototype = Object.create(AgentBase.prototype);
 Agent.prototype._saveCookies = function (res) {
   const cookies = res.headers['set-cookie'];
   if (cookies) {
-    const url = parse(res.request?.url || '')
+    const url = parse(res.request?.url || '');
     this.jar.setCookies(cookies, url.hostname, url.pathname);
   }
 };
diff --git a/src/node/http2wrapper.js b/src/node/http2wrapper.js
index 4141692c7..d742390f9 100644
--- a/src/node/http2wrapper.js
+++ b/src/node/http2wrapper.js
@@ -1,14 +1,14 @@
-const Stream = require('stream');
-const net = require('net');
-const tls = require('tls');
+const Stream = require('node:stream');
+const net = require('node:net');
+const tls = require('node:tls');
 // eslint-disable-next-line node/no-deprecated-api
-const { parse } = require('url');
-const process = require('process');
+const { parse } = require('node:url');
+const process = require('node:process');
 const semverGte = require('semver/functions/gte');
 
 let http2;
 
-if (semverGte(process.version, 'v10.10.0')) http2 = require('http2');
+if (semverGte(process.version, 'v10.10.0')) http2 = require('node:http2');
 else
   throw new Error('superagent: this version of Node.js does not support http2');
 
@@ -70,15 +70,20 @@ class Request extends Stream {
 
   createUnixConnection(authority, options) {
     switch (this.protocol) {
-      case 'http:':
+      case 'http:': {
         return net.connect(options.socketPath);
-      case 'https:':
+      }
+
+      case 'https:': {
         options.ALPNProtocols = ['h2'];
         options.servername = this.host;
         options.allowHalfOpen = true;
         return tls.connect(options.socketPath, options);
-      default:
+      }
+
+      default: {
         throw new Error('Unsupported protocol', this.protocol);
+      }
     }
   }
 
@@ -129,11 +134,14 @@ class Request extends Stream {
       let value = headers[key];
       key = key.toLowerCase();
       switch (key) {
-        case HTTP2_HEADER_SET_COOKIE:
+        case HTTP2_HEADER_SET_COOKIE: {
           value = Array.isArray(value) ? value : [value];
           break;
-        default:
+        }
+
+        default: {
           break;
+        }
       }
 
       http2Headers[key] = value;
@@ -149,14 +157,17 @@ class Request extends Stream {
       let value = headers[key];
       key = key.toLowerCase();
       switch (key) {
-        case HTTP2_HEADER_HOST:
+        case HTTP2_HEADER_HOST: {
           key = HTTP2_HEADER_AUTHORITY;
           value = /^http:\/\/|^https:\/\//.test(value)
             ? parse(value).host
             : value;
           break;
-        default:
+        }
+
+        default: {
           break;
+        }
       }
 
       http2Headers[key] = value;
diff --git a/src/node/index.js b/src/node/index.js
index e6dc73cc9..4cc23b379 100644
--- a/src/node/index.js
+++ b/src/node/index.js
@@ -3,13 +3,13 @@
  */
 
 // eslint-disable-next-line node/no-deprecated-api
-const { parse, format, resolve } = require('url');
-const Stream = require('stream');
-const https = require('https');
-const http = require('http');
-const fs = require('fs');
-const zlib = require('zlib');
-const util = require('util');
+const { parse, format, resolve } = require('node:url');
+const Stream = require('node:stream');
+const https = require('node:https');
+const http = require('node:http');
+const fs = require('node:fs');
+const zlib = require('node:zlib');
+const util = require('node:util');
 const qs = require('qs');
 const mime = require('mime');
 let methods = require('methods');
@@ -19,7 +19,6 @@ const debug = require('debug')('superagent');
 const CookieJar = require('cookiejar');
 const semverGte = require('semver/functions/gte');
 const safeStringify = require('fast-safe-stringify');
-
 const utils = require('../utils');
 const RequestBase = require('../request-base');
 const { unzip } = require('./unzip');
@@ -469,7 +468,6 @@ Request.prototype._pipeContinue = function (stream, options) {
       res.pipe(stream, options);
       res.once('end', () => this.emit('end'));
     }
-
   });
   return stream;
 };
@@ -719,7 +717,7 @@ Request.prototype.request = function () {
   // See https://github.com/ladjs/superagent/issues/1367
   if (queryStringBackticks) {
     let i = 0;
-    url.query = url.query.replace(/%60/g, () => queryStringBackticks[i++]);
+    url.query = url.query.replaceAll('%60', () => queryStringBackticks[i++]);
     url.search = `?${url.query}`;
     url.path = url.pathname + url.search;
   }
@@ -731,7 +729,7 @@ Request.prototype.request = function () {
 
     // get the socket, path
     const unixParts = url.path.match(/^([^/]+)(.+)$/);
-    options.socketPath = unixParts[1].replace(/%2F/g, '/');
+    options.socketPath = unixParts[1].replaceAll('%2F', '/');
     url.path = unixParts[2];
   }
 
diff --git a/src/node/response.js b/src/node/response.js
index af1abc0bd..5c5fbd447 100644
--- a/src/node/response.js
+++ b/src/node/response.js
@@ -2,8 +2,8 @@
  * Module dependencies.
  */
 
-const util = require('util');
-const Stream = require('stream');
+const util = require('node:util');
+const Stream = require('node:stream');
 const ResponseBase = require('../response-base');
 const { mixin } = require('../utils');
 
@@ -51,11 +51,11 @@ function Response(request) {
 // https://github.com/nodejs/node/pull/39520#issuecomment-889697136
 Object.defineProperty(Response.prototype, 'body', {
   get() {
-    return this._body !== undefined
-      ? this._body
-      : this.res.body !== undefined
-      ? this.res.body
-      : {};
+    return this._body === undefined
+      ? this.res.body === undefined
+        ? {}
+        : this.res.body
+      : this._body;
   },
   set(value) {
     this._body = value;
diff --git a/src/node/unzip.js b/src/node/unzip.js
index 46182f4da..232a3eb00 100644
--- a/src/node/unzip.js
+++ b/src/node/unzip.js
@@ -2,9 +2,9 @@
  * Module dependencies.
  */
 
-const { StringDecoder } = require('string_decoder');
-const Stream = require('stream');
-const zlib = require('zlib');
+const { StringDecoder } = require('node:string_decoder');
+const Stream = require('node:stream');
+const zlib = require('node:zlib');
 
 /**
  * Buffers response data events and re-emits when they're unzipped.
diff --git a/src/request-base.js b/src/request-base.js
index cd6020bbf..8bf544900 100644
--- a/src/request-base.js
+++ b/src/request-base.js
@@ -112,17 +112,24 @@ RequestBase.prototype.timeout = function (options) {
   for (const option in options) {
     if (hasOwn(options, option)) {
       switch (option) {
-        case 'deadline':
+        case 'deadline': {
           this._timeout = options.deadline;
           break;
-        case 'response':
+        }
+
+        case 'response': {
           this._responseTimeout = options.response;
           break;
-        case 'upload':
+        }
+
+        case 'upload': {
           this._uploadTimeout = options.upload;
           break;
-        default:
+        }
+
+        default: {
           console.warn('Unknown timeout option', option);
+        }
       }
     }
   }
@@ -513,20 +520,26 @@ RequestBase.prototype.abort = function () {
 
 RequestBase.prototype._auth = function (user, pass, options, base64Encoder) {
   switch (options.type) {
-    case 'basic':
+    case 'basic': {
       this.set('Authorization', `Basic ${base64Encoder(`${user}:${pass}`)}`);
       break;
+    }
 
-    case 'auto':
+    case 'auto': {
       this.username = user;
       this.password = pass;
       break;
+    }
 
-    case 'bearer': // usage would be .auth(accessToken, { type: 'bearer' })
+    case 'bearer': {
+      // usage would be .auth(accessToken, { type: 'bearer' })
       this.set('Authorization', `Bearer ${user}`);
       break;
-    default:
+    }
+
+    default: {
       break;
+    }
   }
 
   return this;
@@ -662,11 +675,12 @@ RequestBase.prototype.send = function (data) {
   // merge
   if (isObject_ && isObject(this._data)) {
     for (const key in data) {
-      if (typeof data[key] == "bigint") throw new Error("Cannot serialize BigInt value to json");
+      if (typeof data[key] === 'bigint')
+        throw new Error('Cannot serialize BigInt value to json');
       if (hasOwn(data, key)) this._data[key] = data[key];
     }
-  }
-  else if (typeof data === 'bigint') throw new Error("Cannot send value of type BigInt");
+  } else if (typeof data === 'bigint')
+    throw new Error('Cannot send value of type BigInt');
   else if (typeof data === 'string') {
     // default to x-www-form-urlencoded
     if (!type) this.type('form');
@@ -720,7 +734,7 @@ RequestBase.prototype.send = function (data) {
 
 RequestBase.prototype.sortQuery = function (sort) {
   // _sort default to true but otherwise can be a function or boolean
-  this._sort = typeof sort === 'undefined' ? true : sort;
+  this._sort = sort === undefined ? true : sort;
   return this;
 };
 
diff --git a/test/agent-base.js b/test/agent-base.js
index 592f996e8..b493daf91 100644
--- a/test/agent-base.js
+++ b/test/agent-base.js
@@ -1,6 +1,5 @@
-const assert = require('assert');
+const assert = require('node:assert');
 const getSetup = require('./support/setup');
-
 const request = require('./support/client');
 
 describe('Agent', () => {
diff --git a/test/basic.js b/test/basic.js
index ab6b5703a..3fbe4b450 100644
--- a/test/basic.js
+++ b/test/basic.js
@@ -1,6 +1,5 @@
-const assert = require('assert');
+const assert = require('node:assert');
 const getSetup = require('./support/setup');
-
 const request = require('./support/client');
 
 describe('request', function () {
diff --git a/test/client/request.js b/test/client/request.js
index 3263bddb7..290041a3a 100644
--- a/test/client/request.js
+++ b/test/client/request.js
@@ -1,4 +1,4 @@
-const assert = require('assert');
+const assert = require('node:assert');
 const request = require('../support/client');
 
 describe('request', function () {
diff --git a/test/client/serialize.js b/test/client/serialize.js
index fe4ec91d8..c3970fabf 100644
--- a/test/client/serialize.js
+++ b/test/client/serialize.js
@@ -1,5 +1,4 @@
-const assert = require('assert');
-
+const assert = require('node:assert');
 const request = require('../support/client');
 
 function serialize(object, res) {
diff --git a/test/client/xdomain.js b/test/client/xdomain.js
index 477338aa9..2eccc0abe 100644
--- a/test/client/xdomain.js
+++ b/test/client/xdomain.js
@@ -1,4 +1,4 @@
-const assert = require('assert');
+const assert = require('node:assert');
 const request = require('../support/client');
 
 describe('xdomain', function () {
diff --git a/test/content-type.js b/test/content-type.js
index 097b93850..c16587919 100644
--- a/test/content-type.js
+++ b/test/content-type.js
@@ -1,6 +1,5 @@
-const assert = require('assert');
+const assert = require('node:assert');
 const getSetup = require('./support/setup');
-
 const request = require('./support/client');
 
 describe('req.set("Content-Type", contentType)', function () {
diff --git a/test/form.js b/test/form.js
index 6c9fc5f2b..b83031fc4 100644
--- a/test/form.js
+++ b/test/form.js
@@ -1,6 +1,5 @@
-const assert = require('assert');
+const assert = require('node:assert');
 const should = require('should');
-
 const getSetup = require('./support/setup');
 const request = require('./support/client');
 
diff --git a/test/json.js b/test/json.js
index 3d10d7b4b..7ad6450f6 100644
--- a/test/json.js
+++ b/test/json.js
@@ -2,7 +2,7 @@ const getSetup = require('./support/setup');
 
 const doesntWorkInHttp2 = !process.env.HTTP2_TEST;
 
-const assert = require('assert');
+const assert = require('node:assert');
 const request = require('./support/client');
 
 describe('req.send(Object) as "json"', function () {
@@ -99,7 +99,7 @@ describe('req.send(Object) as "json"', function () {
           try {
             res.should.be.json();
             res.text.should.equal('{"tobi":"ferret"}');
-            ({ tobi: 'ferret' }.should.eql(res.body));
+            ({ tobi: 'ferret' }).should.eql(res.body);
             done();
           } catch (err) {
             done(err);
@@ -114,34 +114,30 @@ describe('req.send(Object) as "json"', function () {
       .send({ name: 'vendor' })
       .end((error, res) => {
         res.text.should.equal('{"name":"vendor"}');
-        ({ name: 'vendor' }.should.eql(res.body));
+        ({ name: 'vendor' }).should.eql(res.body);
         done();
       });
   });
 
   it('should error for BigInt object', (done) => {
     try {
-      request
-        .post(`${uri}/echo`)
-        .type('json')
-        .send({number: 1n})
-        throw new Error('Should have thrown error for object with BigInt')
-    } catch (error) {
-      assert.strictEqual(error.message, 'Cannot serialize BigInt value to json');
+      request.post(`${uri}/echo`).type('json').send({ number: 1n });
+      throw new Error('Should have thrown error for object with BigInt');
+    } catch (err) {
+      assert.strictEqual(err.message, 'Cannot serialize BigInt value to json');
     }
+
     done();
   });
 
   it('should error for BigInt primitive', (done) => {
     try {
-      request
-        .post(`${uri}/echo`)
-        .type('json')
-        .send(1n)
-        throw new Error('Should have thrown error for BigInt primitive')
-    } catch (error) {
-      assert.strictEqual(error.message, 'Cannot send value of type BigInt');
+      request.post(`${uri}/echo`).type('json').send(1n);
+      throw new Error('Should have thrown error for BigInt primitive');
+    } catch (err) {
+      assert.strictEqual(err.message, 'Cannot send value of type BigInt');
     }
+
     done();
   });
 
@@ -154,7 +150,7 @@ describe('req.send(Object) as "json"', function () {
         .end((error, res) => {
           res.should.be.json();
           res.text.should.equal('{"name":"tobi","age":1}');
-          ({ name: 'tobi', age: 1 }.should.eql(res.body));
+          ({ name: 'tobi', age: 1 }).should.eql(res.body);
           done();
         });
     });
diff --git a/test/node/agency.js b/test/node/agency.js
index dbe8fa958..85127de05 100644
--- a/test/node/agency.js
+++ b/test/node/agency.js
@@ -2,19 +2,19 @@
 
 require('should-http');
 
-const express = require('../support/express');
-
-const app = express();
-const request = require('../support/client');
-const assert = require('assert');
+let http = require('node:http');
+const assert = require('node:assert');
 const should = require('should');
 const cookieParser = require('cookie-parser');
 const cookiejar = require('cookiejar');
 const session = require('express-session');
-let http = require('http');
+const request = require('../support/client');
+const express = require('../support/express');
+
+const app = express();
 
 if (process.env.HTTP2_TEST) {
-  http = require('http2');
+  http = require('node:http2');
   http.Http2ServerResponse.prototype._implicitHeader = function () {
     this.writeHead(this.statusCode);
   };
@@ -134,19 +134,26 @@ describe('request', () => {
           assert.deepStrictEqual(cookiePairs, [
             'first_cookie=dummy',
             'cookie=jar',
-            `connect.sid=${agent4.jar.getCookie('connect.sid', cookiejar.CookieAccessInfo.All).value}`,
+            `connect.sid=${
+              agent4.jar.getCookie(
+                'connect.sid',
+                cookiejar.CookieAccessInfo.All
+              ).value
+            }`
           ]);
           done();
         });
     });
 
     it('should not share cookies between domains', () => {
-      assert.equal(agent4.get('https://google.com').cookies, "");
+      assert.equal(agent4.get('https://google.com').cookies, '');
     });
 
     it('should send cookies to allowed domain with a different path', () => {
-      const postRequest = agent4.post(`${base}/x/y/z`)
-      const cookiesNames = postRequest.cookies.split(';').map(cookie => cookie.split('=')[0])
+      const postRequest = agent4.post(`${base}/x/y/z`);
+      const cookiesNames = postRequest.cookies
+        .split(';')
+        .map((cookie) => cookie.split('=')[0]);
       cookiesNames.should.eql(['cookie', ' connect.sid']);
     });
 
diff --git a/test/node/basic-auth.js b/test/node/basic-auth.js
index 90d015b04..cef15c4a5 100644
--- a/test/node/basic-auth.js
+++ b/test/node/basic-auth.js
@@ -1,5 +1,5 @@
 'use strict';
-const URL = require('url');
+const URL = require('node:url');
 const request = require('../support/client');
 const getSetup = require('../support/setup');
 
diff --git a/test/node/basic.js b/test/node/basic.js
index f208dc884..809cb76f3 100644
--- a/test/node/basic.js
+++ b/test/node/basic.js
@@ -1,10 +1,10 @@
 'use strict';
 
-const assert = require('assert');
-const fs = require('fs');
-const { EventEmitter } = require('events');
-const { StringDecoder } = require('string_decoder');
-const url = require('url');
+const assert = require('node:assert');
+const fs = require('node:fs');
+const { EventEmitter } = require('node:events');
+const { StringDecoder } = require('node:string_decoder');
+const url = require('node:url');
 const getSetup = require('../support/setup');
 const request = require('../support/client');
 
@@ -247,7 +247,7 @@ describe('[node] request', () => {
 
   describe('.agent(new http.Agent())', () => {
     it('should set passed agent', (done) => {
-      const http = require('http');
+      const http = require('node:http');
       const request_ = request.get(`${base}/echo`);
       const agent = new http.Agent();
       const returnValue = request_.agent(agent);
diff --git a/test/node/buffers.js b/test/node/buffers.js
index 607d7b2fc..2c47f1451 100644
--- a/test/node/buffers.js
+++ b/test/node/buffers.js
@@ -1,5 +1,5 @@
 'use strict';
-const assert = require('assert');
+const assert = require('node:assert');
 const request = require('../support/client');
 const getSetup = require('../support/setup');
 
diff --git a/test/node/flags.js b/test/node/flags.js
index a29200157..4d1ada4e1 100644
--- a/test/node/flags.js
+++ b/test/node/flags.js
@@ -1,6 +1,6 @@
 'use strict';
 
-const assert = require('assert');
+const assert = require('node:assert');
 const request = require('../support/client');
 const getSetup = require('../support/setup');
 
diff --git a/test/node/form.js b/test/node/form.js
index f24634133..1af79bb02 100644
--- a/test/node/form.js
+++ b/test/node/form.js
@@ -1,6 +1,6 @@
 'use strict';
 
-const assert = require('assert');
+const assert = require('node:assert');
 const request = require('../support/client');
 const getSetup = require('../support/setup');
 
diff --git a/test/node/http2.js b/test/node/http2.js
index 24e32da20..f6529d419 100644
--- a/test/node/http2.js
+++ b/test/node/http2.js
@@ -3,8 +3,8 @@ if (!process.env.HTTP2_TEST) {
   return;
 }
 
-const assert = require('assert');
-const url = require('url');
+const assert = require('node:assert');
+const url = require('node:url');
 const request = require('../..');
 const getSetup = require('../support/setup');
 
diff --git a/test/node/https.js b/test/node/https.js
index e485723b8..c5f1f5736 100644
--- a/test/node/https.js
+++ b/test/node/https.js
@@ -1,10 +1,9 @@
 'use strict';
 
-const assert = require('assert');
-
-const url = require('url');
-const https = require('https');
-const fs = require('fs');
+const assert = require('node:assert');
+const url = require('node:url');
+const https = require('node:https');
+const fs = require('node:fs');
 const express = require('../support/express');
 const request = require('../support/client');
 
@@ -32,7 +31,7 @@ openssl pkcs12 -export -in cert.pem -inkey key.pem -out passcert.pfx # password
  */
 let http2;
 if (process.env.HTTP2_TEST) {
-  http2 = require('http2');
+  http2 = require('node:http2');
 }
 
 let server;
diff --git a/test/node/image.js b/test/node/image.js
index 2b66b499f..e59e1a082 100644
--- a/test/node/image.js
+++ b/test/node/image.js
@@ -1,6 +1,6 @@
 'use strict';
 
-const fs = require('fs');
+const fs = require('node:fs');
 const request = require('../support/client');
 const getSetup = require('../support/setup');
 
diff --git a/test/node/inflate.js b/test/node/inflate.js
index 1a849e440..08bc4e3e1 100644
--- a/test/node/inflate.js
+++ b/test/node/inflate.js
@@ -2,15 +2,15 @@
 require('should');
 require('should-http');
 
-const assert = require('assert');
-const zlib = require('zlib');
-let http = require('http');
+const assert = require('node:assert');
+const zlib = require('node:zlib');
+let http = require('node:http');
 const getPort = require('get-port');
 const express = require('../support/express');
 const request = require('../support/client');
 
 if (process.env.HTTP2_TEST) {
-  http = require('http2');
+  http = require('node:http2');
 }
 
 const app = express();
diff --git a/test/node/lookup.js b/test/node/lookup.js
index 0eafef210..c3d72c24e 100644
--- a/test/node/lookup.js
+++ b/test/node/lookup.js
@@ -1,6 +1,6 @@
 'use strict';
-const assert = require('assert');
-const dns = require('dns');
+const assert = require('node:assert');
+const dns = require('node:dns');
 const request = require('../support/client');
 const getSetup = require('../support/setup');
 
diff --git a/test/node/multipart.js b/test/node/multipart.js
index bf992b382..4b82a449d 100644
--- a/test/node/multipart.js
+++ b/test/node/multipart.js
@@ -1,13 +1,13 @@
 'use strict';
 
-const assert = require('assert');
-const fs = require('fs');
-const path = require('path');
+const assert = require('node:assert');
+const fs = require('node:fs');
+const path = require('node:path');
 const should = require('should');
 const getPort = require('get-port');
 const request = require('../support/client');
 const getSetup = require('../support/setup');
-const IS_WINDOWS = require('os').platform() === 'win32';
+const IS_WINDOWS = require('node:os').platform() === 'win32';
 
 function read(file) {
   return fs.readFileSync(file, 'utf8');
diff --git a/test/node/network-error.js b/test/node/network-error.js
index 3828590ea..a71a43c03 100644
--- a/test/node/network-error.js
+++ b/test/node/network-error.js
@@ -1,6 +1,6 @@
 'use strict';
-const assert = require('assert');
-const net = require('net');
+const assert = require('node:assert');
+const net = require('node:net');
 const request = require('../support/client');
 const express = require('../support/express');
 
diff --git a/test/node/parsers.js b/test/node/parsers.js
index 924628982..01753f61f 100644
--- a/test/node/parsers.js
+++ b/test/node/parsers.js
@@ -1,5 +1,5 @@
 'use strict';
-const assert = require('assert');
+const assert = require('node:assert');
 const request = require('../support/client');
 const getSetup = require('../support/setup');
 
diff --git a/test/node/pipe-redirect.js b/test/node/pipe-redirect.js
index 3b7525f74..8a91e661d 100644
--- a/test/node/pipe-redirect.js
+++ b/test/node/pipe-redirect.js
@@ -1,5 +1,5 @@
 'use strict';
-const fs = require('fs');
+const fs = require('node:fs');
 const request = require('../support/client');
 const getSetup = require('../support/setup');
 
diff --git a/test/node/pipe.js b/test/node/pipe.js
index c6f11222c..d1d9df66b 100644
--- a/test/node/pipe.js
+++ b/test/node/pipe.js
@@ -3,14 +3,14 @@ const request = require('../support/client');
 const express = require('../support/express');
 
 const app = express();
-const fs = require('fs');
+const fs = require('node:fs');
+let http = require('node:http');
+const zlib = require('node:zlib');
+const { pipeline } = require('node:stream');
 const bodyParser = require('body-parser');
-let http = require('http');
-const zlib = require('zlib');
-const { pipeline } = require('stream');
 
 if (process.env.HTTP2_TEST) {
-  http = require('http2');
+  http = require('node:http2');
 }
 
 app.use(bodyParser.json());
@@ -23,7 +23,9 @@ app.get('/gzip', (request_, res) => {
   res.writeHead(200, {
     'Content-Encoding': 'gzip'
   });
-  fs.createReadStream('test/node/fixtures/user.json').pipe(new zlib.createGzip()).pipe(res);
+  fs.createReadStream('test/node/fixtures/user.json')
+    .pipe(new zlib.createGzip())
+    .pipe(res);
 });
 
 app.get('/redirect', (request_, res) => {
@@ -147,7 +149,7 @@ describe('request pipe', () => {
     // not monitored by pipeline, we need to make sure request_ does not emit 'end' until the unzip step
     // has finished writing data.  Otherwise, we'll either end up with truncated data or a 'write after end' error.
     pipeline(request_, stream, function (err) {
-      (!!err).should.be.false();
+      Boolean(err).should.be.false();
       responseCalled.should.be.true();
 
       JSON.parse(fs.readFileSync(destinationPath)).should.eql({
diff --git a/test/node/query.js b/test/node/query.js
index dfa0efd75..9ba6adc7b 100644
--- a/test/node/query.js
+++ b/test/node/query.js
@@ -1,14 +1,14 @@
 'use strict';
-let http = require('http');
-const assert = require('assert');
-const fs = require('fs');
+let http = require('node:http');
+const assert = require('node:assert');
+const fs = require('node:fs');
 const request = require('../support/client');
 const express = require('../support/express');
 
 const app = express();
 
 if (process.env.HTTP2_TEST) {
-  http = require('http2');
+  http = require('node:http2');
 }
 
 app.get('/raw-query', (request_, res) => {
diff --git a/test/node/redirects-other-host.js b/test/node/redirects-other-host.js
index 067866e17..4fccca198 100644
--- a/test/node/redirects-other-host.js
+++ b/test/node/redirects-other-host.js
@@ -1,15 +1,15 @@
 'use strict';
-const assert = require('assert');
+const assert = require('node:assert');
 const request = require('../support/client');
 const express = require('../support/express');
 
 const app = express();
 const app2 = express();
 const should = require('should');
-let http = require('http');
+let http = require('node:http');
 
 if (process.env.HTTP2_TEST) {
-  http = require('http2');
+  http = require('node:http2');
 }
 
 let base = 'http://localhost';
diff --git a/test/node/redirects.js b/test/node/redirects.js
index b1d5d9260..b6d9f99de 100644
--- a/test/node/redirects.js
+++ b/test/node/redirects.js
@@ -1,7 +1,7 @@
 'use strict';
 
-const URL = require('url');
-const assert = require('assert');
+const URL = require('node:url');
+const assert = require('node:assert');
 const getSetup = require('../support/setup');
 const request = require('../support/client');
 
@@ -88,7 +88,7 @@ describe('request', () => {
             }
           });
       });
-    })
+    });
 
     it('should follow Location', (done) => {
       const redirects = [];
diff --git a/test/node/response-readable-stream.js b/test/node/response-readable-stream.js
index fdd076781..47841dceb 100644
--- a/test/node/response-readable-stream.js
+++ b/test/node/response-readable-stream.js
@@ -3,11 +3,11 @@ const request = require('../support/client');
 const express = require('../support/express');
 
 const app = express();
-const fs = require('fs');
-let http = require('http');
+const fs = require('node:fs');
+let http = require('node:http');
 
 if (process.env.HTTP2_TEST) {
-  http = require('http2');
+  http = require('node:http2');
 }
 
 app.get('/', (request_, res) => {
diff --git a/test/node/serialize.js b/test/node/serialize.js
index 0d01c6911..0fc0316bb 100644
--- a/test/node/serialize.js
+++ b/test/node/serialize.js
@@ -1,6 +1,6 @@
 'use strict';
 
-const assert = require('assert');
+const assert = require('node:assert');
 const request = require('../support/client');
 const getSetup = require('../support/setup');
 
diff --git a/test/node/set-host.js b/test/node/set-host.js
index 6bd58f1b3..7c06f96e3 100644
--- a/test/node/set-host.js
+++ b/test/node/set-host.js
@@ -3,8 +3,8 @@ const request = require('../support/client');
 const express = require('../support/express');
 
 const app = express();
-const http = require('http');
-const assert = require('assert');
+const http = require('node:http');
+const assert = require('node:assert');
 
 describe('request.get().set()', () => {
   if (process.env.HTTP2_TEST) {
diff --git a/test/node/toError.js b/test/node/toError.js
index 300100fdf..fd49ae6f3 100644
--- a/test/node/toError.js
+++ b/test/node/toError.js
@@ -1,13 +1,13 @@
 'use strict';
-const assert = require('assert');
+const assert = require('node:assert');
 const request = require('../support/client');
 const express = require('../support/express');
 
 const app = express();
-let http = require('http');
+let http = require('node:http');
 
 if (process.env.HTTP2_TEST) {
-  http = require('http2');
+  http = require('node:http2');
 }
 
 app.get('/', (request_, res) => {
diff --git a/test/node/unix-sockets.js b/test/node/unix-sockets.js
index a443079af..15ccf6e19 100644
--- a/test/node/unix-sockets.js
+++ b/test/node/unix-sockets.js
@@ -1,10 +1,9 @@
 'use strict';
-const assert = require('assert');
-
-let http = require('http');
-let https = require('https');
-const os = require('os');
-const fs = require('fs');
+const assert = require('node:assert');
+let http = require('node:http');
+let https = require('node:https');
+const os = require('node:os');
+const fs = require('node:fs');
 const express = require('../support/express');
 const request = require('../support/client');
 
@@ -19,7 +18,7 @@ let httpServer;
 let httpsServer;
 
 if (process.env.HTTP2_TEST) {
-  http = https = require('http2');
+  http = https = require('node:http2');
 }
 
 app.get('/', (request_, res) => {
@@ -45,7 +44,7 @@ describe('[unix-sockets] http', () => {
     httpServer.listen(httpSockPath, done);
   });
 
-  const base = `http+unix://${httpSockPath.replace(/\//g, '%2F')}`;
+  const base = `http+unix://${httpSockPath.replaceAll('/', '%2F')}`;
 
   describe('request', () => {
     it('path: / (root)', (done) => {
@@ -90,7 +89,7 @@ describe('[unix-sockets] https', () => {
     httpsServer.listen(httpsSockPath, done);
   });
 
-  const base = `https+unix://${httpsSockPath.replace(/\//g, '%2F')}`;
+  const base = `https+unix://${httpsSockPath.replaceAll('/', '%2F')}`;
 
   describe('request', () => {
     it('path: / (root)', (done) => {
diff --git a/test/node/user-agent.js b/test/node/user-agent.js
index 3e0f008ac..449c92ded 100644
--- a/test/node/user-agent.js
+++ b/test/node/user-agent.js
@@ -1,5 +1,5 @@
 'use strict';
-const assert = require('assert');
+const assert = require('node:assert');
 const request = require('../support/client');
 const getSetup = require('../support/setup');
 
diff --git a/test/node/utils.js b/test/node/utils.js
index e0ba5e57d..7260f47a7 100644
--- a/test/node/utils.js
+++ b/test/node/utils.js
@@ -1,5 +1,5 @@
 'use strict';
-const assert = require('assert');
+const assert = require('node:assert');
 const utils =
   process.env.OLD_NODE_TEST === '1'
     ? // eslint-disable-next-line node/no-missing-require
diff --git a/test/redirects.js b/test/redirects.js
index 7cba5f46a..c81bbb53c 100644
--- a/test/redirects.js
+++ b/test/redirects.js
@@ -1,5 +1,4 @@
-const assert = require('assert');
-
+const assert = require('node:assert');
 const getSetup = require('./support/setup');
 const request = require('./support/client');
 
diff --git a/test/request.js b/test/request.js
index e4ec3b739..6a5937431 100644
--- a/test/request.js
+++ b/test/request.js
@@ -1,8 +1,6 @@
-const fs = require('fs');
-
-const assert = require('assert');
+const fs = require('node:fs');
+const assert = require('node:assert');
 const getSetup = require('./support/setup');
-
 const request = require('./support/client');
 
 const binData = fs.readFileSync(`${__dirname}/node/fixtures/test.aac`);
diff --git a/test/retry.js b/test/retry.js
index 52c023418..cbfbdd38c 100644
--- a/test/retry.js
+++ b/test/retry.js
@@ -1,6 +1,5 @@
-const assert = require('assert');
+const assert = require('node:assert');
 const getSetup = require('./support/setup');
-
 const request = require('./support/client');
 
 function uniqid() {
diff --git a/test/support/express/index.js b/test/support/express/index.js
index fed7e8632..ec5cf228d 100644
--- a/test/support/express/index.js
+++ b/test/support/express/index.js
@@ -1,10 +1,10 @@
-const process = require('process');
+const process = require('node:process');
 const express = require('express');
 
 let http2Request;
 let http2Res;
 if (process.env.HTTP2_TEST) {
-  const http2 = require('http2');
+  const http2 = require('node:http2');
   const requestDecorator = require('./requestDecorator');
   const resDecorator = require('./responseDecorator');
   http2Request = requestDecorator(
diff --git a/test/support/express/requestDecorator.js b/test/support/express/requestDecorator.js
index 196406b9c..8580a38ed 100644
--- a/test/support/express/requestDecorator.js
+++ b/test/support/express/requestDecorator.js
@@ -13,7 +13,7 @@
  * @private
  */
 
-const { isIP } = require('net');
+const { isIP } = require('node:net');
 const accepts = require('accepts');
 const typeis = require('type-is');
 const fresh = require('fresh');
@@ -71,10 +71,13 @@ function setMethods(request) {
 
     switch (lc) {
       case 'referer':
-      case 'referrer':
+      case 'referrer': {
         return this.headers.referrer || this.headers.referer;
-      default:
+      }
+
+      default: {
         return this.headers[lc];
+      }
     }
   };
 
@@ -291,7 +294,7 @@ function setMethods(request) {
     const header = this.get('X-Forwarded-Proto') || proto;
     const index = header.indexOf(',');
 
-    return index !== -1 ? header.slice(0, index).trim() : header.trim();
+    return index === -1 ? header.trim() : header.slice(0, index).trim();
   });
 
   /**
@@ -366,9 +369,9 @@ function setMethods(request) {
     if (!hostname) return [];
 
     const offset = this.app.get('subdomain offset');
-    const subdomains = !isIP(hostname)
-      ? hostname.split('.').reverse()
-      : [hostname];
+    const subdomains = isIP(hostname)
+      ? [hostname]
+      : hostname.split('.').reverse();
 
     return subdomains.slice(offset);
   });
@@ -426,7 +429,7 @@ function setMethods(request) {
     const offset = host[0] === '[' ? host.indexOf(']') + 1 : 0;
     const index = host.indexOf(':', offset);
 
-    return index !== -1 ? host.slice(0, index) : host;
+    return index === -1 ? host : host.slice(0, index);
   });
 
   /**
diff --git a/test/support/express/responseDecorator.js b/test/support/express/responseDecorator.js
index 26535e879..04823fec8 100644
--- a/test/support/express/responseDecorator.js
+++ b/test/support/express/responseDecorator.js
@@ -12,7 +12,7 @@
  * @private
  */
 
-const path = require('path');
+const path = require('node:path');
 const { Buffer } = require('safe-buffer');
 const contentDisposition = require('content-disposition');
 const encodeUrl = require('encodeurl');
@@ -113,15 +113,17 @@ function setMethods(res) {
 
     switch (typeof chunk) {
       // string defaulting to html
-      case 'string':
+      case 'string': {
         if (!this.get('Content-Type')) {
           this.type('html');
         }
 
         break;
+      }
+
       case 'boolean':
       case 'number':
-      case 'object':
+      case 'object': {
         if (chunk === null) {
           chunk = '';
         } else if (Buffer.isBuffer(chunk)) {
@@ -133,6 +135,7 @@ function setMethods(res) {
         }
 
         break;
+      }
     }
 
     // write strings in utf-8
@@ -267,10 +270,12 @@ function setMethods(res) {
       this.set('Content-Type', 'text/javascript');
 
       // restrict callback charset
-      callback = callback.replace(/[^[\]\w$.]/g, '');
+      callback = callback.replaceAll(/[^[\]\w$.]/g, '');
 
       // replace chars not allowed in JavaScript that are in JSON
-      body = body.replace(/\u2028/g, '\\u2028').replace(/\u2029/g, '\\u2029');
+      body = body
+        .replaceAll('\u2028', '\\u2028')
+        .replaceAll('\u2029', '\\u2029');
 
       // the /**/ is a specific security mitigation for "Rosetta Flash JSONP abuse"
       // the typeof check is just to reduce client error noise
@@ -468,7 +473,7 @@ function setMethods(res) {
    */
 
   res.contentType = res.type = function contentType(type) {
-    const ct = !type.includes('/') ? mime.lookup(type) : type;
+    const ct = type.includes('/') ? type : mime.lookup(type);
 
     return this.set('Content-Type', ct);
   };
@@ -999,16 +1004,23 @@ function stringify(value, replacer, spaces, escape) {
       : JSON.stringify(value);
 
   if (escape) {
-    json = json.replace(/[<>&]/g, (c) => {
+    json = json.replaceAll(/[<>&]/g, (c) => {
       switch (c.charCodeAt(0)) {
-        case 0x3c:
+        case 0x3c: {
           return '\\u003c';
-        case 0x3e:
+        }
+
+        case 0x3e: {
           return '\\u003e';
-        case 0x26:
+        }
+
+        case 0x26: {
           return '\\u0026';
-        default:
+        }
+
+        default: {
           return c;
+        }
       }
     });
   }
diff --git a/test/support/express/utils.js b/test/support/express/utils.js
index b3dbc7a65..8c21ab76c 100644
--- a/test/support/express/utils.js
+++ b/test/support/express/utils.js
@@ -12,7 +12,7 @@
  * @api private
  */
 
-const querystring = require('querystring');
+const querystring = require('node:querystring');
 const { Buffer } = require('safe-buffer');
 const contentType = require('content-type');
 const { mime } = require('send');
@@ -27,7 +27,7 @@ let isHttp2Supported = true;
  * @api private
  */
 try {
-  require('http2');
+  require('node:http2');
 } catch {
   isHttp2Supported = false;
 }
@@ -132,19 +132,28 @@ exports.compileETag = function (value) {
   }
 
   switch (value) {
-    case true:
+    case true: {
       fn = exports.wetag;
       break;
-    case false:
+    }
+
+    case false: {
       break;
-    case 'strong':
+    }
+
+    case 'strong': {
       fn = exports.etag;
       break;
-    case 'weak':
+    }
+
+    case 'weak': {
       fn = exports.wetag;
       break;
-    default:
+    }
+
+    default: {
       throw new TypeError('unknown value for etag function: ' + value);
+    }
   }
 
   return fn;
@@ -166,19 +175,28 @@ exports.compileQueryParser = function compileQueryParser(value) {
   }
 
   switch (value) {
-    case true:
+    case true: {
       fn = querystring.parse;
       break;
-    case false:
+    }
+
+    case false: {
       break;
-    case 'extended':
+    }
+
+    case 'extended': {
       fn = parseExtendedQueryString;
       break;
-    case 'simple':
+    }
+
+    case 'simple': {
       fn = querystring.parse;
       break;
-    default:
+    }
+
+    default: {
       throw new TypeError('unknown value for query parser function: ' + value);
+    }
   }
 
   return fn;
@@ -256,7 +274,7 @@ exports.setCharset = function setCharset(type, charset) {
 
 function createETagGenerator(options) {
   return function generateETag(body, encoding) {
-    const buf = !Buffer.isBuffer(body) ? Buffer.from(body, encoding) : body;
+    const buf = Buffer.isBuffer(body) ? body : Buffer.from(body, encoding);
 
     return etag(buf, options);
   };
diff --git a/test/support/server.js b/test/support/server.js
index a219c0d15..0ebb55b85 100644
--- a/test/support/server.js
+++ b/test/support/server.js
@@ -1,6 +1,6 @@
-const fs = require('fs');
-const path = require('path');
-let http = require('http');
+const fs = require('node:fs');
+const path = require('node:path');
+let http = require('node:http');
 const multer = require('multer');
 const bodyParser = require('body-parser');
 const cookieParser = require('cookie-parser');
@@ -10,7 +10,7 @@ const express = require('./express');
 let isPseudoHeader;
 
 if (process.env.HTTP2_TEST) {
-  http = require('http2');
+  http = require('node:http2');
   const {
     HTTP2_HEADER_AUTHORITY,
     HTTP2_HEADER_METHOD,
@@ -24,10 +24,14 @@ if (process.env.HTTP2_TEST) {
       case HTTP2_HEADER_METHOD: // :method
       case HTTP2_HEADER_PATH: // :path
       case HTTP2_HEADER_AUTHORITY: // :authority
-      case HTTP2_HEADER_SCHEME: // :scheme
+      case HTTP2_HEADER_SCHEME: {
+        // :scheme
         return true;
-      default:
+      }
+
+      default: {
         return false;
+      }
     }
   };
 }
@@ -419,7 +423,7 @@ app.get('/cookie-redirect', (request, res) => {
 });
 
 app.get('/set-cookie', (request, res) => {
-  res.cookie('replaced', 'no')
+  res.cookie('replaced', 'no');
   res.cookie('persist', '123');
   res.send('ok');
 });
@@ -542,48 +546,48 @@ app.get('/error/ok/:id', (request, res) => {
   }
 
   const { id } = request.params;
-  if (!called[id]) {
-    called[id] = true;
-    res.status(500).send('boom');
-  } else {
+  if (called[id]) {
     res.send(request.headers);
     delete called[id];
+  } else {
+    called[id] = true;
+    res.status(500).send('boom');
   }
 });
 
 app.get('/delay/:ms/ok/:id', (request, res) => {
   const { id } = request.params;
-  if (!called[id]) {
+  if (called[id]) {
+    res.send(`ok = ${request.url}`);
+    delete called[id];
+  } else {
     called[id] = true;
     const ms = Math.trunc(request.params.ms);
     setTimeout(() => {
       res.sendStatus(200);
     }, ms);
-  } else {
-    res.send(`ok = ${request.url}`);
-    delete called[id];
   }
 });
 
 app.get('/error/redirect/:id', (request, res) => {
   const { id } = request.params;
-  if (!called[id]) {
-    called[id] = true;
-    res.status(500).send('boom');
-  } else {
+  if (called[id]) {
     res.redirect('/movies');
     delete called[id];
+  } else {
+    called[id] = true;
+    res.status(500).send('boom');
   }
 });
 
 app.get('/error/redirect-error:id', (request, res) => {
   const { id } = request.params;
-  if (!called[id]) {
-    called[id] = true;
-    res.status(500).send('boom');
-  } else {
+  if (called[id]) {
     res.redirect('/error');
     delete called[id];
+  } else {
+    called[id] = true;
+    res.status(500).send('boom');
   }
 });
 
diff --git a/test/support/setup.js b/test/support/setup.js
index ee251837f..938746d01 100644
--- a/test/support/setup.js
+++ b/test/support/setup.js
@@ -12,10 +12,7 @@ async function getSetup() {
   }
 
   NODE = true;
-  if (typeof window !== 'undefined') {
-    NODE = false;
-    uri = `//${window.location.host}`;
-  } else {
+  if (typeof window === 'undefined') {
     try {
       const port = await getPort();
 
@@ -28,6 +25,9 @@ async function getSetup() {
     } catch (err) {
       console.error(err);
     }
+  } else {
+    NODE = false;
+    uri = `//${window.location.host}`;
   }
 
   return { NODE, uri };
diff --git a/test/timeout.js b/test/timeout.js
index 7acf39b5c..4a77a28ec 100644
--- a/test/timeout.js
+++ b/test/timeout.js
@@ -1,6 +1,5 @@
-const assert = require('assert');
+const assert = require('node:assert');
 const getSetup = require('./support/setup');
-
 const request = require('./support/client');
 
 describe('.timeout(ms)', function () {
diff --git a/test/use.js b/test/use.js
index 59598f00a..8606208e3 100644
--- a/test/use.js
+++ b/test/use.js
@@ -1,6 +1,5 @@
-const assert = require('assert');
+const assert = require('node:assert');
 const getSetup = require('./support/setup');
-
 const request = require('./support/client');
 
 describe('request', function () {