diff --git a/README.md b/README.md
index 9514069d1..873c01ef0 100644
--- a/README.md
+++ b/README.md
@@ -167,7 +167,7 @@ Validator                               | Description
 **isTime(str [, options])**             | check if the string is a valid time e.g. [`23:01:59`, new Date().toLocaleTimeString()].<br/><br/> `options` is an object which can contain the keys `hourFormat` or `mode`.<br/><br/>`hourFormat` is a key and defaults to `'hour24'`.<br/><br/>`mode` is a key and defaults to `'default'`. <br/><br/>`hourFormat` can contain the values `'hour12'` or `'hour24'`, `'hour24'` will validate hours in 24 format and `'hour12'` will validate hours in 12 format. <br/><br/>`mode` can contain the values `'default'` or `'withSeconds'`, `'default'` will validate `HH:MM` format, `'withSeconds'` will validate the `HH:MM:SS` format.
 **isTaxID(str, locale)**                | check if the string is a valid Tax Identification Number. Default locale is `en-US`.<br/><br/>More info about exact TIN support can be found in `src/lib/isTaxID.js`.<br/><br/>Supported locales: `[ 'bg-BG', 'cs-CZ', 'de-AT', 'de-DE', 'dk-DK', 'el-CY', 'el-GR', 'en-CA', 'en-GB', 'en-IE', 'en-US', 'es-AR', 'es-ES', 'et-EE', 'fi-FI', 'fr-BE', 'fr-CA', 'fr-FR', 'fr-LU', 'hr-HR', 'hu-HU', 'it-IT', 'lb-LU', 'lt-LT', 'lv-LV', 'mt-MT', 'nl-BE', 'nl-NL', 'pl-PL', 'pt-BR', 'pt-PT', 'ro-RO', 'sk-SK', 'sl-SI', 'sv-SE', 'uk-UA']`.
 **isURL(str [, options])**              | check if the string is a URL.<br/><br/>`options` is an object which defaults to `{ protocols: ['http','https','ftp'], require_tld: true, require_protocol: false, require_host: true, require_port: false, require_valid_protocol: true, allow_underscores: false, host_whitelist: false, host_blacklist: false, allow_trailing_dot: false, allow_protocol_relative_urls: false, allow_fragments: true, allow_query_components: true, disallow_auth: false, validate_length: true }`.<br/><br/>`require_protocol` - if set to true isURL will return false if protocol is not present in the URL.<br/>`require_valid_protocol` - isURL will check if the URL's protocol is present in the protocols option.<br/>`protocols` - valid protocols can be modified with this option.<br/>`require_host` - if set to false isURL will not check if host is present in the URL.<br/>`require_port` - if set to true isURL will check if port is present in the URL.<br/>`allow_protocol_relative_urls` - if set to true protocol relative URLs will be allowed.<br/>`allow_fragments` - if set to false isURL will return false if fragments are present.<br/>`allow_query_components` - if set to false isURL will return false if query components are present.<br/>`validate_length` - if set to false isURL will skip string length validation (2083 characters is IE max URL length).
-**isUUID(str [, version])**             | check if the string is a UUID (version 1, 2, 3, 4, 5 or 7).
+**isUUID(str [, version])**             | check if the string is an RFC9562 UUID.<br/>`version` is one of `'1'`-`'8'`, `'nil'`, `'max'`, or `'all'`.
 **isVariableWidth(str)**                | check if the string contains a mixture of full and half-width chars.
 **isVAT(str, countryCode)**             | check if the string is a [valid VAT number][VAT Number] if validation is available for the given country code matching [ISO 3166-1 alpha-2][ISO 3166-1 alpha-2]. <br/><br/>`countryCode` is one of `['AL', 'AR', 'AT', 'AU', 'BE', 'BG', 'BO', 'BR', 'BY', 'CA', 'CH', 'CL', 'CO', 'CR', 'CY', 'CZ', 'DE', 'DK', 'DO', 'EC', 'EE', 'EL', 'ES', 'FI', 'FR', 'GB', 'GT', 'HN', 'HR', 'HU', 'ID', 'IE', 'IL', 'IN', 'IS', 'IT', 'KZ', 'LT', 'LU', 'LV', 'MK', 'MT', 'MX', 'NG', 'NI', 'NL', 'NO', 'NZ', 'PA', 'PE', 'PH', 'PL', 'PT', 'PY', 'RO', 'RS', 'RU', 'SA', 'SE', 'SI', 'SK', 'SM', 'SV', 'TR', 'UA', 'UY', 'UZ', 'VE']`.
 **isWhitelisted(str, chars)**           | check if the string consists only of characters that appear in the whitelist `chars`.
diff --git a/src/lib/isUUID.js b/src/lib/isUUID.js
index 512141df6..786af002e 100644
--- a/src/lib/isUUID.js
+++ b/src/lib/isUUID.js
@@ -1,17 +1,28 @@
 import assertString from './util/assertString';
 
 const uuid = {
-  1: /^[0-9A-F]{8}-[0-9A-F]{4}-1[0-9A-F]{3}-[0-9A-F]{4}-[0-9A-F]{12}$/i,
-  2: /^[0-9A-F]{8}-[0-9A-F]{4}-2[0-9A-F]{3}-[0-9A-F]{4}-[0-9A-F]{12}$/i,
-  3: /^[0-9A-F]{8}-[0-9A-F]{4}-3[0-9A-F]{3}-[0-9A-F]{4}-[0-9A-F]{12}$/i,
+  1: /^[0-9A-F]{8}-[0-9A-F]{4}-1[0-9A-F]{3}-[89AB][0-9A-F]{3}-[0-9A-F]{12}$/i,
+  2: /^[0-9A-F]{8}-[0-9A-F]{4}-2[0-9A-F]{3}-[89AB][0-9A-F]{3}-[0-9A-F]{12}$/i,
+  3: /^[0-9A-F]{8}-[0-9A-F]{4}-3[0-9A-F]{3}-[89AB][0-9A-F]{3}-[0-9A-F]{12}$/i,
   4: /^[0-9A-F]{8}-[0-9A-F]{4}-4[0-9A-F]{3}-[89AB][0-9A-F]{3}-[0-9A-F]{12}$/i,
   5: /^[0-9A-F]{8}-[0-9A-F]{4}-5[0-9A-F]{3}-[89AB][0-9A-F]{3}-[0-9A-F]{12}$/i,
+  6: /^[0-9A-F]{8}-[0-9A-F]{4}-6[0-9A-F]{3}-[89AB][0-9A-F]{3}-[0-9A-F]{12}$/i,
   7: /^[0-9A-F]{8}-[0-9A-F]{4}-7[0-9A-F]{3}-[89AB][0-9A-F]{3}-[0-9A-F]{12}$/i,
-  all: /^[0-9A-F]{8}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{12}$/i,
+  8: /^[0-9A-F]{8}-[0-9A-F]{4}-8[0-9A-F]{3}-[89AB][0-9A-F]{3}-[0-9A-F]{12}$/i,
+
+  nil: /^00000000-0000-0000-0000-000000000000$/i,
+  max: /^ffffffff-ffff-ffff-ffff-ffffffffffff$/i,
+
+  // From https://github.com/uuidjs/uuid/blob/main/src/regex.js
+  all: /^(?:[0-9a-f]{8}-[0-9a-f]{4}-[1-8][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$/i,
 };
 
 export default function isUUID(str, version) {
   assertString(str);
-  const pattern = uuid[![undefined, null].includes(version) ? version : 'all'];
-  return !!pattern && pattern.test(str);
+
+  if (version === undefined || version === null) {
+    version = 'all';
+  }
+
+  return version in uuid ? uuid[version].test(str) : false;
 }
diff --git a/test/validators.test.js b/test/validators.test.js
index b0382bb82..1c1eb352a 100644
--- a/test/validators.test.js
+++ b/test/validators.test.js
@@ -5424,14 +5424,17 @@ describe('Validators', () => {
     test({
       validator: 'isUUID',
       valid: [
-        'A987FBC9-4BED-3078-CF07-9141BA07C9F3',
+        '9deb20fe-a6e0-355c-81ea-288b009e4f6d',
         'A987FBC9-4BED-4078-8F07-9141BA07C9F3',
         'A987FBC9-4BED-5078-AF07-9141BA07C9F3',
+        'A987FBC9-4BED-6078-AF07-9141BA07C9F3',
         '018C544A-D384-7000-BB74-3B1738ABE43C',
+        'A987FBC9-4BED-8078-AF07-9141BA07C9F3',
       ],
       invalid: [
         '',
         'xxxA987FBC9-4BED-3078-CF07-9141BA07C9F3',
+        'A987FBC9-4BED-3078-CF07-9141BA07C9F3',
         'A987FBC9-4BED-3078-CF07-9141BA07C9F3xxx',
         'A987FBC94BED3078CF079141BA07C9F3',
         '934859',
@@ -5443,12 +5446,13 @@ describe('Validators', () => {
       validator: 'isUUID',
       args: [undefined],
       valid: [
-        'A117FBC9-4BED-3078-CF07-9141BA07C9F3',
+        '9deb20fe-a6e0-355c-81ea-288b009e4f6d',
         'A117FBC9-4BED-5078-AF07-9141BA07C9F3',
         '018C544A-D384-7000-BB74-3B1738ABE43C',
       ],
       invalid: [
         '',
+        'A117FBC9-4BED-3078-CF07-9141BA07C9F3',
         'xxxA987FBC9-4BED-3078-CF07-9141BA07C9F3',
         'A987FBC94BED3078CF079141BA07C9F3',
         'A11AAAAA-1111-1111-AAAG-111111111111',
@@ -5458,12 +5462,13 @@ describe('Validators', () => {
       validator: 'isUUID',
       args: [null],
       valid: [
-        'A127FBC9-4BED-3078-CF07-9141BA07C9F3',
+        'A127FBC9-4BED-3078-AF07-9141BA07C9F3',
         '018C544A-D384-7000-BB74-3B1738ABE43C',
       ],
       invalid: [
         '',
         'xxxA987FBC9-4BED-3078-CF07-9141BA07C9F3',
+        'A127FBC9-4BED-3078-CF07-9141BA07C9F3',
         'A127FBC9-4BED-3078-CF07-9141BA07C9F3xxx',
         '912859',
         'A12AAAAA-1111-1111-AAAG-111111111111',
@@ -5488,13 +5493,14 @@ describe('Validators', () => {
       validator: 'isUUID',
       args: [2],
       valid: [
-        'A987FBC9-4BED-2078-CF07-9141BA07C9F3',
+        'A987FBC9-4BED-2078-AF07-9141BA07C9F3',
       ],
       invalid: [
         '',
         'xxxA987FBC9-4BED-3078-CF07-9141BA07C9F3',
         '11111',
         'AAAAAAAA-1111-1111-AAAG-111111111111',
+        'A987FBC9-4BED-2078-CF07-9141BA07C9F3',
         'A987FBC9-4BED-4078-8F07-9141BA07C9F3',
         'A987FBC9-4BED-5078-AF07-9141BA07C9F3',
         '018C544A-D384-7000-BB74-3B1738ABE43C',
@@ -5504,10 +5510,11 @@ describe('Validators', () => {
       validator: 'isUUID',
       args: [3],
       valid: [
-        'A987FBC9-4BED-3078-CF07-9141BA07C9F3',
+        '9deb20fe-a6e0-355c-81ea-288b009e4f6d',
       ],
       invalid: [
         '',
+        'A987FBC9-4BED-3078-CF07-9141BA07C9F3',
         'xxxA987FBC9-4BED-3078-CF07-9141BA07C9F3',
         '934859',
         'AAAAAAAA-1111-1111-AAAG-111111111111',
@@ -5557,7 +5564,9 @@ describe('Validators', () => {
     test({
       validator: 'isUUID',
       args: [6],
-      valid: [],
+      valid: [
+        '1ef29908-cde1-69d0-be16-bfc8518a95f0',
+      ],
       invalid: [
         '987FBC97-4BED-1078-AF07-9141BA07C9F3',
         '987FBC97-4BED-2078-AF07-9141BA07C9F3',
@@ -5565,6 +5574,7 @@ describe('Validators', () => {
         '987FBC97-4BED-4078-AF07-9141BA07C9F3',
         '987FBC97-4BED-5078-AF07-9141BA07C9F3',
         '018C544A-D384-7000-BB74-3B1738ABE43C',
+        '987FBC97-4BED-8078-AF07-9141BA07C9F3',
       ],
     });
     test({
@@ -5580,6 +5590,29 @@ describe('Validators', () => {
         'AAAAAAAA-1111-1111-AAAG-111111111111',
         'A987FBC9-4BED-5078-AF07-9141BA07C9F3',
         'A987FBC9-4BED-3078-CF07-9141BA07C9F3',
+        'A987FBC9-4BED-6078-AF07-9141BA07C9F3',
+        'A987FBC9-4BED-8078-AF07-9141BA07C9F3',
+        '713ae7e3-cb32-45f9-adcb-7c4fa86b90c1',
+        '625e63f3-58f5-40b7-83a1-a72ad31acffb',
+        '57b73598-8764-4ad0-a76a-679bb6640eb1',
+        '9c858901-8a57-4791-81fe-4c455b099bc9',
+      ],
+    });
+    test({
+      validator: 'isUUID',
+      args: [8],
+      valid: [
+        '018C544A-D384-8000-BB74-3B1738ABE43C',
+      ],
+      invalid: [
+        '',
+        'xxxA987FBC9-4BED-3078-CF07-9141BA07C9F3',
+        '934859',
+        'AAAAAAAA-1111-1111-AAAG-111111111111',
+        'A987FBC9-4BED-5078-AF07-9141BA07C9F3',
+        'A987FBC9-4BED-3078-CF07-9141BA07C9F3',
+        'A987FBC9-4BED-6078-AF07-9141BA07C9F3',
+        'A987FBC9-4BED-7078-AF07-9141BA07C9F3',
         '713ae7e3-cb32-45f9-adcb-7c4fa86b90c1',
         '625e63f3-58f5-40b7-83a1-a72ad31acffb',
         '57b73598-8764-4ad0-a76a-679bb6640eb1',