diff --git a/apple_passkit/ios/apple_passkit/Sources/apple_passkit/ApplePasskitPlugin.swift b/apple_passkit/ios/apple_passkit/Sources/apple_passkit/ApplePasskitPlugin.swift
index 00d458e..6e17b35 100644
--- a/apple_passkit/ios/apple_passkit/Sources/apple_passkit/ApplePasskitPlugin.swift
+++ b/apple_passkit/ios/apple_passkit/Sources/apple_passkit/ApplePasskitPlugin.swift
@@ -41,14 +41,14 @@ public class ApplePasskitPlugin: NSObject, FlutterPlugin {
     private func getPasses(_ result: @escaping FlutterResult) {
         let passNames = PKPassLibrary().passes().map {
             return [
-                "passType": $0.passType,
+                "passType": String($0.passType.rawValue),
                 "serialNumber": $0.serialNumber,
                 "passTypeIdentifier": $0.passTypeIdentifier,
                 "deviceName": $0.deviceName,
                 "localizedName": $0.localizedName,
                 "localizedDescription": $0.localizedDescription,
                 "isRemotePass": $0.isRemotePass,
-                "passURL": $0.passURL?.absoluteString,
+                "passUrl": $0.passURL?.absoluteString,
                 "organizationName": $0.organizationName,
                 "icon": $0.icon.pngData(),
             ] as [String : Any?]
diff --git a/apple_passkit/lib/src/apple_passkit.dart b/apple_passkit/lib/src/apple_passkit.dart
index 81fe670..ee1ec3e 100644
--- a/apple_passkit/lib/src/apple_passkit.dart
+++ b/apple_passkit/lib/src/apple_passkit.dart
@@ -72,13 +72,13 @@ class ApplePassKit {
   /// return the same passes, but in a different order.
   Future<List<ApplePkPass>> passes() async {
     final list = await wrapWithException(
-      methodChannel.invokeMethod<List<Object>>(
+      methodChannel.invokeMethod<List<Object?>?>(
         'getPasses',
       ),
     );
 
     return list
-            ?.cast<Map<Object, Object?>>()
+            ?.cast<Map<Object?, Object?>>()
             .map(ApplePkPass.fromMap)
             .toList() ??
         [];
diff --git a/apple_passkit/lib/src/apple_pk_pass.dart b/apple_passkit/lib/src/apple_pk_pass.dart
index 0cecce4..bd2e1a8 100644
--- a/apple_passkit/lib/src/apple_pk_pass.dart
+++ b/apple_passkit/lib/src/apple_pk_pass.dart
@@ -13,9 +13,9 @@ class ApplePkPass {
     required this.icon,
   });
 
-  factory ApplePkPass.fromMap(Map<Object, Object?> map) {
+  factory ApplePkPass.fromMap(Map<Object?, Object?> map) {
     return ApplePkPass(
-      passType: map['passType'] as String,
+      passType: PKPassType.fromJson(map['passType'] as String),
       serialNumber: map['serialNumber'] as String,
       passTypeIdentifier: map['passTypeIdentifier'] as String,
       deviceName: map['deviceName'] as String,
@@ -29,7 +29,7 @@ class ApplePkPass {
   }
 
   /// The pass’s type.
-  final String passType;
+  final PKPassType passType;
 
   /// A value that uniquely identifies the pass.
   final String serialNumber;
@@ -61,13 +61,42 @@ class ApplePkPass {
 }
 
 /// Status after trying to add multiple passes.
-enum PkPassType {
+enum PKPassType {
   /// A nonspecific pass type.
-  any,
+  any('18446744073709551615'),
 
   /// A pass that represents a barcode.
-  barcode,
+  barcode('0'),
 
   /// A pass that represents a credential that the device stores in the Secure Element.
-  secureElement
-}
+  secureElement('1'),
+
+  /// Deprecated, but maps to secureElement value
+  payment('1');
+
+  /// Constructor to initialize each enum case with a string representation of the integer value
+  const PKPassType(this.value);
+
+  /// A field to store the string value associated with each enum case (representing integers as strings)
+  final String value;
+
+  // Factory method to create an enum from a JSON value (string)
+  static PKPassType fromJson(String jsonValue) {
+    for (PKPassType type in PKPassType.values) {
+      if (type.value == jsonValue) {
+        return type;
+      }
+    }
+    throw ArgumentError('Invalid PKPassType value: $jsonValue');
+  }
+
+  // Method to convert the enum case back to a string for JSON serialization
+  String toJson() {
+    return value;
+  }
+
+  @override
+  String toString() {
+    return value; // Return the string representation of the integer value
+  }
+}
\ No newline at end of file