diff --git a/src/Validators/CreditCard.php b/src/Validators/CreditCard.php
index 7dbeb75b8..261f965ed 100644
--- a/src/Validators/CreditCard.php
+++ b/src/Validators/CreditCard.php
@@ -61,7 +61,7 @@
         self::DINERS_CLUB => '/^3(?:0[0-5]|[68]\d)\d{11}$/',
         self::DISCOVER => '/^6(?:011|5\d{2})\d{12}$/',
         self::JCB => '/^(?:2131|1800|35\d{3})\d{11}$/',
-        self::MASTERCARD => '/^(5[1-5]|2[2-7])\d{14}$/',
+        self::MASTERCARD => '/^(?:5[1-5]\d{2}|222[1-9]|22[3-9]\d|2[3-6]\d{2}|27[01]\d|2720)\d{12}$/',
         self::VISA => '/^4\d{12}(?:\d{3})?$/',
         self::RUPAY => '/^6(?!011)(?:0[0-9]{14}|52[12][0-9]{12})$/',
     ];
diff --git a/tests/unit/Validators/CreditCardTest.php b/tests/unit/Validators/CreditCardTest.php
index b396f23ff..3f14d3d55 100644
--- a/tests/unit/Validators/CreditCardTest.php
+++ b/tests/unit/Validators/CreditCardTest.php
@@ -52,6 +52,8 @@ public static function providerForValidInput(): iterable
             [$master, '5376 7473 9720 8720'],
             [$general, '2223000048400011'], // MasterCard 2 BIN Range
             [$master, '2222 4000 4124 0011'],
+            [$master, '2221000000000009'], // MasterCard 2 BIN Range lower bound
+            [$master, '2720000000000005'], // MasterCard 2 BIN Range upper bound
             [$general, '4024.0071.5336.1885'], // Visa 16
             [$visa, '4024.0071.5336.1885'],
             [$general, '4024 007 193 879'], // Visa 13
@@ -94,6 +96,8 @@ public static function providerForInvalidInput(): iterable
             [$diners, '4012888888881881'], // Visa
             [$discover, '371449635398431'], // American Express
             [$jcb, '38520000023237'], // Diners Club
+            [$master, '2200000000000004'], // Luhn-valid, below the MasterCard 2 BIN Range (2221)
+            [$master, '2721000000000004'], // Luhn-valid, above the MasterCard 2 BIN Range (2720)
             [$master, '05105105105105100'], // Over-long (17-digit) Luhn-valid number; regression for missing ^ anchor
         ];
     }