diff --git a/packages/dart_firebase_admin/lib/src/messaging/messaging_api.dart b/packages/dart_firebase_admin/lib/src/messaging/messaging_api.dart
index 3153962..59f8f58 100644
--- a/packages/dart_firebase_admin/lib/src/messaging/messaging_api.dart
+++ b/packages/dart_firebase_admin/lib/src/messaging/messaging_api.dart
@@ -452,6 +452,8 @@ class Aps {
     this.mutableContent,
     this.category,
     this.threadId,
+    this.interruptionLevel,
+    this.soundRaw,
   });
 
   /// Alert to be included in the message. This may be a string or an object of
@@ -478,15 +480,24 @@ class Aps {
   /// An app-specific identifier for grouping notifications.
   final String? threadId;
 
+  /// Specifies the interruption level of the notification.
+  /// Usually critical or time-sensitive.
+  final String? interruptionLevel;
+
+  /// The sound name directly inserted as "sound": "sound_name" in the payload.
+  final String? soundRaw;
+
   Map<String, Object?> _toProto() {
     return {
       if (alert != null) 'alert': alert?._toProto(),
       if (badge != null) 'badge': badge,
-      if (sound != null) 'sound': sound?._toProto(),
+      if (sound != null || soundRaw != null)
+        'sound': sound?._toProto() ?? soundRaw,
       if (contentAvailable != null) 'content-available': contentAvailable,
       if (mutableContent != null) 'mutable-content': mutableContent,
       if (category != null) 'category': category,
       if (threadId != null) 'thread-id': threadId,
+      if (interruptionLevel != null) 'interruption-level': interruptionLevel,
     }._cleanProto();
   }
 }