diff --git a/lib/src/components/apple_pay/model/apple_pay_component_configuration.dart b/lib/src/components/apple_pay/model/apple_pay_component_configuration.dart
index 580e46b1..2a60cd97 100644
--- a/lib/src/components/apple_pay/model/apple_pay_component_configuration.dart
+++ b/lib/src/components/apple_pay/model/apple_pay_component_configuration.dart
@@ -2,8 +2,6 @@ import 'package:adyen_checkout/adyen_checkout.dart';
 import 'package:adyen_checkout/src/common/model/base_configuration.dart';
 
 final class ApplePayComponentConfiguration extends BaseConfiguration {
-  final ApplePayConfiguration applePayConfiguration;
-
   ApplePayComponentConfiguration({
     required super.environment,
     required super.clientKey,
@@ -14,6 +12,8 @@ final class ApplePayComponentConfiguration extends BaseConfiguration {
     super.analyticsOptions,
   });
 
+  final ApplePayConfiguration applePayConfiguration;
+
   @override
   String toString() {
     return 'ApplePayComponentConfiguration(applePayConfiguration: $applePayConfiguration)';
diff --git a/lib/src/components/card/model/card_component_configuration.dart b/lib/src/components/card/model/card_component_configuration.dart
index e97bb808..64a53d25 100644
--- a/lib/src/components/card/model/card_component_configuration.dart
+++ b/lib/src/components/card/model/card_component_configuration.dart
@@ -2,8 +2,6 @@ import 'package:adyen_checkout/src/common/model/base_configuration.dart';
 import 'package:adyen_checkout/src/common/model/payment_method_configurations/card_configuration.dart';
 
 final class CardComponentConfiguration extends BaseConfiguration {
-  final CardConfiguration cardConfiguration;
-
   CardComponentConfiguration({
     required super.environment,
     required super.clientKey,
@@ -11,8 +9,10 @@ final class CardComponentConfiguration extends BaseConfiguration {
     super.amount,
     super.shopperLocale,
     super.analyticsOptions,
-    CardConfiguration? cardConfiguration,
-  }) : cardConfiguration = cardConfiguration ?? const CardConfiguration();
+    this.cardConfiguration = const CardConfiguration(),
+  });
+
+  final CardConfiguration cardConfiguration;
 
   @override
   String toString() {
diff --git a/lib/src/components/google_pay/model/google_pay_component_configuration.dart b/lib/src/components/google_pay/model/google_pay_component_configuration.dart
index a7d1a70e..6d4c5d1c 100644
--- a/lib/src/components/google_pay/model/google_pay_component_configuration.dart
+++ b/lib/src/components/google_pay/model/google_pay_component_configuration.dart
@@ -2,8 +2,6 @@ import 'package:adyen_checkout/adyen_checkout.dart';
 import 'package:adyen_checkout/src/common/model/base_configuration.dart';
 
 final class GooglePayComponentConfiguration extends BaseConfiguration {
-  final GooglePayConfiguration googlePayConfiguration;
-
   GooglePayComponentConfiguration({
     required super.environment,
     required super.clientKey,
@@ -14,6 +12,8 @@ final class GooglePayComponentConfiguration extends BaseConfiguration {
     super.analyticsOptions,
   });
 
+  final GooglePayConfiguration googlePayConfiguration;
+
   @override
   String toString() {
     return 'GooglePayComponentConfiguration(googlePayConfiguration: $googlePayConfiguration)';
diff --git a/lib/src/drop_in/model/drop_in_configuration.dart b/lib/src/drop_in/model/drop_in_configuration.dart
index 63d5d68e..6ca1537c 100644
--- a/lib/src/drop_in/model/drop_in_configuration.dart
+++ b/lib/src/drop_in/model/drop_in_configuration.dart
@@ -7,15 +7,6 @@ import 'package:adyen_checkout/src/common/model/payment_method_configurations/go
 import 'package:adyen_checkout/src/common/model/payment_method_configurations/stored_payment_method_configuration.dart';
 
 final class DropInConfiguration extends BaseConfiguration {
-  final CardConfiguration? cardConfiguration;
-  final ApplePayConfiguration? applePayConfiguration;
-  final GooglePayConfiguration? googlePayConfiguration;
-  final CashAppPayConfiguration? cashAppPayConfiguration;
-  final StoredPaymentMethodConfiguration? storedPaymentMethodConfiguration;
-  final bool skipListWhenSinglePaymentMethod;
-  final String? preselectedPaymentMethodTitle;
-  final Map<String, String>? paymentMethodNames;
-
   DropInConfiguration({
     required super.environment,
     required super.clientKey,
@@ -28,11 +19,20 @@ final class DropInConfiguration extends BaseConfiguration {
     this.cashAppPayConfiguration,
     this.storedPaymentMethodConfiguration,
     this.preselectedPaymentMethodTitle,
-    bool? skipListWhenSinglePaymentMethod,
+    this.skipListWhenSinglePaymentMethod = false,
     AnalyticsOptions? analyticsOptions,
     this.paymentMethodNames,
-  }) : skipListWhenSinglePaymentMethod =
-            skipListWhenSinglePaymentMethod ?? false;
+  });
+
+  final CardConfiguration? cardConfiguration;
+  final ApplePayConfiguration? applePayConfiguration;
+  final GooglePayConfiguration? googlePayConfiguration;
+  final CashAppPayConfiguration? cashAppPayConfiguration;
+  final StoredPaymentMethodConfiguration? storedPaymentMethodConfiguration;
+  final bool skipListWhenSinglePaymentMethod;
+  final String? preselectedPaymentMethodTitle;
+  final Map<String, String>? paymentMethodNames;
+
 
   @override
   String toString() {