diff --git a/openapi.json b/openapi.json
index f514d26..a8cba7a 100644
--- a/openapi.json
+++ b/openapi.json
@@ -8061,6 +8061,7 @@
         "enum": [
           "ALELO",
           "AMEX",
+          "BANCOMAT",
           "CONECS",
           "CUP",
           "DINERS",
diff --git a/src/Hydrator.php b/src/Hydrator.php
index b30b9a3..3908c82 100644
--- a/src/Hydrator.php
+++ b/src/Hydrator.php
@@ -144,6 +144,14 @@ private static function castEnumValue($value, $enumClass)
             if ($enum !== null) {
                 return $enum;
             }
+
+            // The API can return values added after the SDK was generated
+            // (e.g. a new card network). Enums that declare an UNKNOWN case
+            // are meant to absorb them instead of failing the whole response.
+            $unknown = $enumClass::tryFrom('UNKNOWN');
+            if ($unknown !== null) {
+                return $unknown;
+            }
         }
 
         if (method_exists($enumClass, 'from')) {
diff --git a/src/Types/CardResponseType.php b/src/Types/CardResponseType.php
index 0442c42..9d900ec 100644
--- a/src/Types/CardResponseType.php
+++ b/src/Types/CardResponseType.php
@@ -11,6 +11,7 @@ enum CardResponseType: string
 {
     case ALELO = 'ALELO';
     case AMEX = 'AMEX';
+    case BANCOMAT = 'BANCOMAT';
     case CONECS = 'CONECS';
     case CUP = 'CUP';
     case DINERS = 'DINERS';
diff --git a/src/Types/CardType.php b/src/Types/CardType.php
index 227c8e7..2e75b22 100644
--- a/src/Types/CardType.php
+++ b/src/Types/CardType.php
@@ -11,6 +11,7 @@ enum CardType: string
 {
     case ALELO = 'ALELO';
     case AMEX = 'AMEX';
+    case BANCOMAT = 'BANCOMAT';
     case CONECS = 'CONECS';
     case CUP = 'CUP';
     case DINERS = 'DINERS';
diff --git a/src/Types/PaymentInstrumentResponseCardType.php b/src/Types/PaymentInstrumentResponseCardType.php
index 06ddd68..dce45e3 100644
--- a/src/Types/PaymentInstrumentResponseCardType.php
+++ b/src/Types/PaymentInstrumentResponseCardType.php
@@ -11,6 +11,7 @@ enum PaymentInstrumentResponseCardType: string
 {
     case ALELO = 'ALELO';
     case AMEX = 'AMEX';
+    case BANCOMAT = 'BANCOMAT';
     case CONECS = 'CONECS';
     case CUP = 'CUP';
     case DINERS = 'DINERS';
diff --git a/src/Types/TransactionHistoryCardType.php b/src/Types/TransactionHistoryCardType.php
index 8c5a4f8..e052a28 100644
--- a/src/Types/TransactionHistoryCardType.php
+++ b/src/Types/TransactionHistoryCardType.php
@@ -11,6 +11,7 @@ enum TransactionHistoryCardType: string
 {
     case ALELO = 'ALELO';
     case AMEX = 'AMEX';
+    case BANCOMAT = 'BANCOMAT';
     case CONECS = 'CONECS';
     case CUP = 'CUP';
     case DINERS = 'DINERS';
diff --git a/tests/HydratorTest.php b/tests/HydratorTest.php
index faea8e6..0ceddee 100644
--- a/tests/HydratorTest.php
+++ b/tests/HydratorTest.php
@@ -4,6 +4,8 @@
 
 use PHPUnit\Framework\TestCase;
 use SumUp\Hydrator;
+use SumUp\Types\CardResponse;
+use SumUp\Types\CardResponseType;
 use SumUp\Types\Checkout;
 use SumUp\Types\CheckoutCurrency;
 use SumUp\Types\MandateResponse;
@@ -79,6 +81,28 @@ public function testHydrateArrayItemsFromDocblockClassNames()
         $this->assertSame('https://example.test/2', $response->links[1]->href);
     }
 
+    public function testHydrateBancomatCardType()
+    {
+        $card = Hydrator::hydrate([
+            'type' => 'BANCOMAT',
+        ], CardResponse::class);
+
+        $this->assertInstanceOf(CardResponse::class, $card);
+        $this->assertSame(CardResponseType::BANCOMAT, $card->type);
+    }
+
+    public function testHydrateUnknownValueOfEnumWithUnknownCaseFallsBackToUnknown()
+    {
+        $card = Hydrator::hydrate([
+            'type' => 'SOME_FUTURE_NETWORK',
+            'last_4_digits' => '1234',
+        ], CardResponse::class);
+
+        $this->assertInstanceOf(CardResponse::class, $card);
+        $this->assertSame(CardResponseType::UNKNOWN, $card->type);
+        $this->assertSame('1234', $card->last4Digits);
+    }
+
     public function testHydrateInvalidBackedEnumValueThrowsValueError()
     {
         $this->expectException(\ValueError::class);