diff --git a/docs/rules/CountryCode.md b/docs/rules/CountryCode.md
index 89472ad6..79f36ce2 100644
--- a/docs/rules/CountryCode.md
+++ b/docs/rules/CountryCode.md
@@ -21,7 +21,7 @@ This rule supports the three sets of country codes:
 
 When no set is defined the rule uses `'alpha-2'` (`CountryCode::ALPHA2`).
 
-This rules uses data from [iso-codes][].
+This rule uses data from [sokil/php-isocodes][].
 
 ## Categorization
 
@@ -45,4 +45,4 @@ See also:
 - [Tld](Tld.md)
 
 [ISO 3166-1]: https://wikipedia.org/wiki/ISO_3166-1
-[iso-codes]: https://salsa.debian.org/iso-codes-team/iso-codes
+[sokil/php-isocodes]: https://github.com/sokil/php-isocodes
diff --git a/library/Rules/CountryCode.php b/library/Rules/CountryCode.php
index 7b3bfa6d..164f8d52 100644
--- a/library/Rules/CountryCode.php
+++ b/library/Rules/CountryCode.php
@@ -14,10 +14,13 @@ declare(strict_types=1);
 namespace Respect\Validation\Rules;
 
 use Respect\Validation\Exceptions\ComponentException;
+use Sokil\IsoCodes\IsoCodesFactory;
+use Sokil\IsoCodes\TranslationDriver\DummyDriver;
 
-use function array_column;
 use function array_keys;
 use function implode;
+use function is_int;
+use function is_string;
 use function sprintf;
 
 /**
@@ -30,7 +33,7 @@ use function sprintf;
  * @author Henrique Moody <henriquemoody@gmail.com>
  * @author William Espindola <oi@williamespindola.com.br>
  */
-final class CountryCode extends AbstractSearcher
+final class CountryCode extends AbstractRule
 {
     /**
      * The ISO representation of a country code.
@@ -56,297 +59,16 @@ final class CountryCode extends AbstractSearcher
         self::NUMERIC => 2,
     ];
 
-    /**
-     * @see https://salsa.debian.org/iso-codes-team/iso-codes
-     */
-    private const COUNTRY_CODES = [
-        ['AD', 'AND', '020'], // Andorra
-        ['AE', 'ARE', '784'], // United Arab Emirates
-        ['AF', 'AFG', '004'], // Afghanistan
-        ['AG', 'ATG', '028'], // Antigua and Barbuda
-        ['AI', 'AFI', '262'], // French Afars and Issas
-        ['AI', 'AIA', '660'], // Anguilla
-        ['AL', 'ALB', '008'], // Albania
-        ['AM', 'ARM', '051'], // Armenia
-        ['AN', 'ANT', '530'], // Netherlands Antilles
-        ['AO', 'AGO', '024'], // Angola
-        ['AQ', 'ATA', '010'], // Antarctica
-        ['AR', 'ARG', '032'], // Argentina
-        ['AS', 'ASM', '016'], // American Samoa
-        ['AT', 'AUT', '040'], // Austria
-        ['AU', 'AUS', '036'], // Australia
-        ['AW', 'ABW', '533'], // Aruba
-        ['AX', 'ALA', '248'], // Åland Islands
-        ['AZ', 'AZE', '031'], // Azerbaijan
-        ['BA', 'BIH', '070'], // Bosnia and Herzegovina
-        ['BB', 'BRB', '052'], // Barbados
-        ['BD', 'BGD', '050'], // Bangladesh
-        ['BE', 'BEL', '056'], // Belgium
-        ['BF', 'BFA', '854'], // Burkina Faso
-        ['BG', 'BGR', '100'], // Bulgaria
-        ['BH', 'BHR', '048'], // Bahrain
-        ['BI', 'BDI', '108'], // Burundi
-        ['BJ', 'BEN', '204'], // Benin
-        ['BL', 'BLM', '652'], // Saint Barthélemy
-        ['BM', 'BMU', '060'], // Bermuda
-        ['BN', 'BRN', '096'], // Brunei Darussalam
-        ['BO', 'BOL', '068'], // Bolivia, Plurinational State of
-        ['BQ', 'ATB', null], // British Antarctic Territory
-        ['BQ', 'BES', '535'], // Bonaire, Sint Eustatius and Saba
-        ['BR', 'BRA', '076'], // Brazil
-        ['BS', 'BHS', '044'], // Bahamas
-        ['BT', 'BTN', '064'], // Bhutan
-        ['BU', 'BUR', '104'], // Burma, Socialist Republic of the Union of
-        ['BV', 'BVT', '074'], // Bouvet Island
-        ['BW', 'BWA', '072'], // Botswana
-        ['BY', 'BLR', '112'], // Belarus
-        ['BY', 'BYS', '112'], // Byelorussian SSR Soviet Socialist Republic
-        ['BZ', 'BLZ', '084'], // Belize
-        ['CA', 'CAN', '124'], // Canada
-        ['CC', 'CCK', '166'], // Cocos (Keeling) Islands
-        ['CD', 'COD', '180'], // Congo, The Democratic Republic of the
-        ['CF', 'CAF', '140'], // Central African Republic
-        ['CG', 'COG', '178'], // Congo
-        ['CH', 'CHE', '756'], // Switzerland
-        ['CI', 'CIV', '384'], // Côte d'Ivoire
-        ['CK', 'COK', '184'], // Cook Islands
-        ['CL', 'CHL', '152'], // Chile
-        ['CM', 'CMR', '120'], // Cameroon
-        ['CN', 'CHN', '156'], // China
-        ['CO', 'COL', '170'], // Colombia
-        ['CR', 'CRI', '188'], // Costa Rica
-        ['CS', 'CSK', '200'], // Czechoslovakia, Czechoslovak Socialist Republic
-        ['CS', 'SCG', '891'], // Serbia and Montenegro
-        ['CT', 'CTE', '128'], // Canton and Enderbury Islands
-        ['CU', 'CUB', '192'], // Cuba
-        ['CV', 'CPV', '132'], // Cabo Verde
-        ['CW', 'CUW', '531'], // Curaçao
-        ['CX', 'CXR', '162'], // Christmas Island
-        ['CY', 'CYP', '196'], // Cyprus
-        ['CZ', 'CZE', '203'], // Czechia
-        ['DD', 'DDR', '278'], // German Democratic Republic
-        ['DE', 'DEU', '276'], // Germany
-        ['DJ', 'DJI', '262'], // Djibouti
-        ['DK', 'DNK', '208'], // Denmark
-        ['DM', 'DMA', '212'], // Dominica
-        ['DO', 'DOM', '214'], // Dominican Republic
-        ['DY', 'DHY', '204'], // Dahomey
-        ['DZ', 'DZA', '012'], // Algeria
-        ['EC', 'ECU', '218'], // Ecuador
-        ['EE', 'EST', '233'], // Estonia
-        ['EG', 'EGY', '818'], // Egypt
-        ['EH', 'ESH', '732'], // Western Sahara
-        ['ER', 'ERI', '232'], // Eritrea
-        ['ES', 'ESP', '724'], // Spain
-        ['ET', 'ETH', '231'], // Ethiopia
-        ['FI', 'FIN', '246'], // Finland
-        ['FJ', 'FJI', '242'], // Fiji
-        ['FK', 'FLK', '238'], // Falkland Islands (Malvinas)
-        ['FM', 'FSM', '583'], // Micronesia, Federated States of
-        ['FO', 'FRO', '234'], // Faroe Islands
-        ['FQ', 'ATF', null], // French Southern and Antarctic Territories
-        ['FR', 'FRA', '250'], // France
-        ['FX', 'FXX', '249'], // France, Metropolitan
-        ['GA', 'GAB', '266'], // Gabon
-        ['GB', 'GBR', '826'], // United Kingdom
-        ['GD', 'GRD', '308'], // Grenada
-        ['GE', 'GEL', '296'], // Gilbert and Ellice Islands
-        ['GE', 'GEO', '268'], // Georgia
-        ['GF', 'GUF', '254'], // French Guiana
-        ['GG', 'GGY', '831'], // Guernsey
-        ['GH', 'GHA', '288'], // Ghana
-        ['GI', 'GIB', '292'], // Gibraltar
-        ['GL', 'GRL', '304'], // Greenland
-        ['GM', 'GMB', '270'], // Gambia
-        ['GN', 'GIN', '324'], // Guinea
-        ['GP', 'GLP', '312'], // Guadeloupe
-        ['GQ', 'GNQ', '226'], // Equatorial Guinea
-        ['GR', 'GRC', '300'], // Greece
-        ['GS', 'SGS', '239'], // South Georgia and the South Sandwich Islands
-        ['GT', 'GTM', '320'], // Guatemala
-        ['GU', 'GUM', '316'], // Guam
-        ['GW', 'GNB', '624'], // Guinea-Bissau
-        ['GY', 'GUY', '328'], // Guyana
-        ['HK', 'HKG', '344'], // Hong Kong
-        ['HM', 'HMD', '334'], // Heard Island and McDonald Islands
-        ['HN', 'HND', '340'], // Honduras
-        ['HR', 'HRV', '191'], // Croatia
-        ['HT', 'HTI', '332'], // Haiti
-        ['HU', 'HUN', '348'], // Hungary
-        ['HV', 'HVO', '854'], // Upper Volta, Republic of
-        ['ID', 'IDN', '360'], // Indonesia
-        ['IE', 'IRL', '372'], // Ireland
-        ['IL', 'ISR', '376'], // Israel
-        ['IM', 'IMN', '833'], // Isle of Man
-        ['IN', 'IND', '356'], // India
-        ['IO', 'IOT', '086'], // British Indian Ocean Territory
-        ['IQ', 'IRQ', '368'], // Iraq
-        ['IR', 'IRN', '364'], // Iran, Islamic Republic of
-        ['IS', 'ISL', '352'], // Iceland
-        ['IT', 'ITA', '380'], // Italy
-        ['JE', 'JEY', '832'], // Jersey
-        ['JM', 'JAM', '388'], // Jamaica
-        ['JO', 'JOR', '400'], // Jordan
-        ['JP', 'JPN', '392'], // Japan
-        ['JT', 'JTN', '396'], // Johnston Island
-        ['KE', 'KEN', '404'], // Kenya
-        ['KG', 'KGZ', '417'], // Kyrgyzstan
-        ['KH', 'KHM', '116'], // Cambodia
-        ['KI', 'KIR', '296'], // Kiribati
-        ['KM', 'COM', '174'], // Comoros
-        ['KN', 'KNA', '659'], // Saint Kitts and Nevis
-        ['KP', 'PRK', '408'], // Korea, Democratic People's Republic of
-        ['KR', 'KOR', '410'], // Korea, Republic of
-        ['KW', 'KWT', '414'], // Kuwait
-        ['KY', 'CYM', '136'], // Cayman Islands
-        ['KZ', 'KAZ', '398'], // Kazakhstan
-        ['LA', 'LAO', '418'], // Lao People's Democratic Republic
-        ['LB', 'LBN', '422'], // Lebanon
-        ['LC', 'LCA', '662'], // Saint Lucia
-        ['LI', 'LIE', '438'], // Liechtenstein
-        ['LK', 'LKA', '144'], // Sri Lanka
-        ['LR', 'LBR', '430'], // Liberia
-        ['LS', 'LSO', '426'], // Lesotho
-        ['LT', 'LTU', '440'], // Lithuania
-        ['LU', 'LUX', '442'], // Luxembourg
-        ['LV', 'LVA', '428'], // Latvia
-        ['LY', 'LBY', '434'], // Libya
-        ['MA', 'MAR', '504'], // Morocco
-        ['MC', 'MCO', '492'], // Monaco
-        ['MD', 'MDA', '498'], // Moldova, Republic of
-        ['ME', 'MNE', '499'], // Montenegro
-        ['MF', 'MAF', '663'], // Saint Martin (French part)
-        ['MG', 'MDG', '450'], // Madagascar
-        ['MH', 'MHL', '584'], // Marshall Islands
-        ['MI', 'MID', '488'], // Midway Islands
-        ['MK', 'MKD', '807'], // North Macedonia
-        ['ML', 'MLI', '466'], // Mali
-        ['MM', 'MMR', '104'], // Myanmar
-        ['MN', 'MNG', '496'], // Mongolia
-        ['MO', 'MAC', '446'], // Macao
-        ['MP', 'MNP', '580'], // Northern Mariana Islands
-        ['MQ', 'MTQ', '474'], // Martinique
-        ['MR', 'MRT', '478'], // Mauritania
-        ['MS', 'MSR', '500'], // Montserrat
-        ['MT', 'MLT', '470'], // Malta
-        ['MU', 'MUS', '480'], // Mauritius
-        ['MV', 'MDV', '462'], // Maldives
-        ['MW', 'MWI', '454'], // Malawi
-        ['MX', 'MEX', '484'], // Mexico
-        ['MY', 'MYS', '458'], // Malaysia
-        ['MZ', 'MOZ', '508'], // Mozambique
-        ['NA', 'NAM', '516'], // Namibia
-        ['NC', 'NCL', '540'], // New Caledonia
-        ['NE', 'NER', '562'], // Niger
-        ['NF', 'NFK', '574'], // Norfolk Island
-        ['NG', 'NGA', '566'], // Nigeria
-        ['NH', 'NHB', '548'], // New Hebrides
-        ['NI', 'NIC', '558'], // Nicaragua
-        ['NL', 'NLD', '528'], // Netherlands
-        ['NO', 'NOR', '578'], // Norway
-        ['NP', 'NPL', '524'], // Nepal
-        ['NQ', 'ATN', '216'], // Dronning Maud Land
-        ['NR', 'NRU', '520'], // Nauru
-        ['NT', 'NTZ', '536'], // Neutral Zone
-        ['NU', 'NIU', '570'], // Niue
-        ['NZ', 'NZL', '554'], // New Zealand
-        ['OM', 'OMN', '512'], // Oman
-        ['PA', 'PAN', '591'], // Panama
-        ['PC', 'PCI', '582'], // Pacific Islands (trust territory)
-        ['PE', 'PER', '604'], // Peru
-        ['PF', 'PYF', '258'], // French Polynesia
-        ['PG', 'PNG', '598'], // Papua New Guinea
-        ['PH', 'PHL', '608'], // Philippines
-        ['PK', 'PAK', '586'], // Pakistan
-        ['PL', 'POL', '616'], // Poland
-        ['PM', 'SPM', '666'], // Saint Pierre and Miquelon
-        ['PN', 'PCN', '612'], // Pitcairn
-        ['PR', 'PRI', '630'], // Puerto Rico
-        ['PS', 'PSE', '275'], // Palestine, State of
-        ['PT', 'PRT', '620'], // Portugal
-        ['PU', 'PUS', '849'], // US Miscellaneous Pacific Islands
-        ['PW', 'PLW', '585'], // Palau
-        ['PY', 'PRY', '600'], // Paraguay
-        ['PZ', 'PCZ', null], // Panama Canal Zone
-        ['QA', 'QAT', '634'], // Qatar
-        ['RE', 'REU', '638'], // Réunion
-        ['RH', 'RHO', '716'], // Southern Rhodesia
-        ['RO', 'ROU', '642'], // Romania
-        ['RS', 'SRB', '688'], // Serbia
-        ['RU', 'RUS', '643'], // Russian Federation
-        ['RW', 'RWA', '646'], // Rwanda
-        ['SA', 'SAU', '682'], // Saudi Arabia
-        ['SB', 'SLB', '090'], // Solomon Islands
-        ['SC', 'SYC', '690'], // Seychelles
-        ['SD', 'SDN', '729'], // Sudan
-        ['SE', 'SWE', '752'], // Sweden
-        ['SG', 'SGP', '702'], // Singapore
-        ['SH', 'SHN', '654'], // Saint Helena, Ascension and Tristan da Cunha
-        ['SI', 'SVN', '705'], // Slovenia
-        ['SJ', 'SJM', '744'], // Svalbard and Jan Mayen
-        ['SK', 'SKM', null], // Sikkim
-        ['SK', 'SVK', '703'], // Slovakia
-        ['SL', 'SLE', '694'], // Sierra Leone
-        ['SM', 'SMR', '674'], // San Marino
-        ['SN', 'SEN', '686'], // Senegal
-        ['SO', 'SOM', '706'], // Somalia
-        ['SR', 'SUR', '740'], // Suriname
-        ['SS', 'SSD', '728'], // South Sudan
-        ['ST', 'STP', '678'], // Sao Tome and Principe
-        ['SU', 'SUN', '810'], // USSR, Union of Soviet Socialist Republics
-        ['SV', 'SLV', '222'], // El Salvador
-        ['SX', 'SXM', '534'], // Sint Maarten (Dutch part)
-        ['SY', 'SYR', '760'], // Syrian Arab Republic
-        ['SZ', 'SWZ', '748'], // Eswatini
-        ['TC', 'TCA', '796'], // Turks and Caicos Islands
-        ['TD', 'TCD', '148'], // Chad
-        ['TF', 'ATF', '260'], // French Southern Territories
-        ['TG', 'TGO', '768'], // Togo
-        ['TH', 'THA', '764'], // Thailand
-        ['TJ', 'TJK', '762'], // Tajikistan
-        ['TK', 'TKL', '772'], // Tokelau
-        ['TL', 'TLS', '626'], // Timor-Leste
-        ['TM', 'TKM', '795'], // Turkmenistan
-        ['TN', 'TUN', '788'], // Tunisia
-        ['TO', 'TON', '776'], // Tonga
-        ['TP', 'TMP', '626'], // East Timor
-        ['TR', 'TUR', '792'], // Turkey
-        ['TT', 'TTO', '780'], // Trinidad and Tobago
-        ['TV', 'TUV', '798'], // Tuvalu
-        ['TW', 'TWN', '158'], // Taiwan, Province of China
-        ['TZ', 'TZA', '834'], // Tanzania, United Republic of
-        ['UA', 'UKR', '804'], // Ukraine
-        ['UG', 'UGA', '800'], // Uganda
-        ['UM', 'UMI', '581'], // United States Minor Outlying Islands
-        ['US', 'USA', '840'], // United States
-        ['UY', 'URY', '858'], // Uruguay
-        ['UZ', 'UZB', '860'], // Uzbekistan
-        ['VA', 'VAT', '336'], // Holy See (Vatican City State)
-        ['VC', 'VCT', '670'], // Saint Vincent and the Grenadines
-        ['VD', 'VDR', null], // Viet-Nam, Democratic Republic of
-        ['VE', 'VEN', '862'], // Venezuela, Bolivarian Republic of
-        ['VG', 'VGB', '092'], // Virgin Islands, British
-        ['VI', 'VIR', '850'], // Virgin Islands, U.S.
-        ['VN', 'VNM', '704'], // Viet Nam
-        ['VU', 'VUT', '548'], // Vanuatu
-        ['WF', 'WLF', '876'], // Wallis and Futuna
-        ['WK', 'WAK', '872'], // Wake Island
-        ['WS', 'WSM', '882'], // Samoa
-        ['YD', 'YMD', '720'], // Yemen, Democratic, People's Democratic Republic of
-        ['YE', 'YEM', '887'], // Yemen
-        ['YT', 'MYT', '175'], // Mayotte
-        ['YU', 'YUG', '891'], // Yugoslavia, Socialist Federal Republic of
-        ['ZA', 'ZAF', '710'], // South Africa
-        ['ZM', 'ZMB', '894'], // Zambia
-        ['ZR', 'ZAR', '180'], // Zaire, Republic of
-        ['ZW', 'ZWE', '716'], // Zimbabwe
-    ];
-
     /**
      * @var string
      */
     private $set;
 
+    /**
+     * @var IsoCodesFactory
+     */
+    private $factory;
+
     /**
      * Initializes the rule.
      *
@@ -365,13 +87,27 @@ final class CountryCode extends AbstractSearcher
         }
 
         $this->set = $set;
+        $this->factory = new IsoCodesFactory(null, new DummyDriver());
     }
 
     /**
      * {@inheritDoc}
      */
-    protected function getDataSource(): array
+    public function validate($input): bool
     {
-        return array_column(self::COUNTRY_CODES, self::SET_INDEXES[$this->set]);
+        if (!is_string($input) && !is_int($input)) {
+            return false;
+        }
+
+        $countries = $this->factory->getCountries();
+        if ($this->set === self::ALPHA2) {
+            return $countries->getByAlpha2((string) $input) !== null;
+        }
+
+        if ($this->set === self::ALPHA3) {
+            return $countries->getByAlpha3((string) $input) !== null;
+        }
+
+        return $countries->getByNumericCode($input) !== null;
     }
 }