diff --git a/mobile/ios/BuzzPushKit/Sources/BuzzPushKit/BuzzPushNavigationTarget.swift b/mobile/ios/BuzzPushKit/Sources/BuzzPushKit/BuzzPushNavigationTarget.swift
index bde4a4494c..926283a3b0 100644
--- a/mobile/ios/BuzzPushKit/Sources/BuzzPushKit/BuzzPushNavigationTarget.swift
+++ b/mobile/ios/BuzzPushKit/Sources/BuzzPushKit/BuzzPushNavigationTarget.swift
@@ -56,7 +56,6 @@ public struct BuzzPushNavigationTarget: Codable, Equatable, Sendable {
     let bytes = Array(value.utf8)
     guard bytes.count == 36,
       bytes[8] == 45, bytes[13] == 45, bytes[18] == 45, bytes[23] == 45,
-      bytes[14] == 52,
       [56, 57, 97, 98].contains(bytes[19])
     else { return false }
     return bytes.enumerated().allSatisfy { index, byte in
diff --git a/mobile/ios/BuzzPushKit/Tests/BuzzPushKitTests/BuzzPushNavigationTargetTests.swift b/mobile/ios/BuzzPushKit/Tests/BuzzPushKitTests/BuzzPushNavigationTargetTests.swift
index 7acd9f5c53..4b9853e2c9 100644
--- a/mobile/ios/BuzzPushKit/Tests/BuzzPushKitTests/BuzzPushNavigationTargetTests.swift
+++ b/mobile/ios/BuzzPushKit/Tests/BuzzPushKitTests/BuzzPushNavigationTargetTests.swift
@@ -3,7 +3,7 @@ import Testing
 
 @testable import BuzzPushKit
 
-@Test func `Round-trip navigation target through notification user info`() {
+@Test func `Round-trip UUIDv4 navigation target through notification user info`() {
   let target = BuzzPushNavigationTarget(
     eventID: String(repeating: "A", count: 64),
     communityID: "community-id",
@@ -19,7 +19,22 @@ import Testing
   #expect(target.channelID == "123e4567-e89b-42d3-a456-426614174000")
 }
 
-@Test func `Reject incomplete navigation target`() {
+@Test func `Decode UUIDv5 navigation target`() {
+  let target = BuzzPushNavigationTarget(
+    eventID: String(repeating: "B", count: 64),
+    communityID: "community-id",
+    channelID: "9A1657AC-F7AA-5DB0-B632-D8BBEB6DFB50"
+  )
+
+  #expect(
+    BuzzPushNavigationTarget.decodeIfPresent(
+      from: [BuzzPushNavigationTarget.userInfoKey: target.userInfoValue]
+    ) == target
+  )
+  #expect(target.channelID == "9a1657ac-f7aa-5db0-b632-d8bbeb6dfb50")
+}
+
+@Test func `Reject incomplete or malformed navigation target`() {
   #expect(
     BuzzPushNavigationTarget.decodeIfPresent(
       from: [
@@ -42,6 +57,18 @@ import Testing
       ]
     ) == nil
   )
+
+  #expect(
+    BuzzPushNavigationTarget.decodeIfPresent(
+      from: [
+        BuzzPushNavigationTarget.userInfoKey: [
+          "event_id": String(repeating: "a", count: 64),
+          "community_id": "community-id",
+          "channel_id": "9a1657ac-f7aa-5db0-7632-d8bbeb6dfb50",
+        ]
+      ]
+    ) == nil
+  )
 }
 
 @Test func `Buffer preserves cold-start target until consumed`() {
diff --git a/mobile/lib/shared/push/push_bridge.dart b/mobile/lib/shared/push/push_bridge.dart
index c91c24ed87..3d5a818092 100644
--- a/mobile/lib/shared/push/push_bridge.dart
+++ b/mobile/lib/shared/push/push_bridge.dart
@@ -26,7 +26,7 @@ final pendingPushNotificationLink = ValueNotifier<MessageDeepLink?>(null);
 
 final _pushEventIdPattern = RegExp(r'^[0-9a-f]{64}$');
 final _pushChannelIdPattern = RegExp(
-  r'^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$',
+  r'^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$',
 );
 
 MessageDeepLink? _pushNotificationLink(Object? arguments) {
diff --git a/mobile/test/shared/push/push_bridge_test.dart b/mobile/test/shared/push/push_bridge_test.dart
index e9445e88ca..f59dd65660 100644
--- a/mobile/test/shared/push/push_bridge_test.dart
+++ b/mobile/test/shared/push/push_bridge_test.dart
@@ -150,7 +150,7 @@ void main() {
     expect(apnsRegistrationError.value, 'denied');
   });
 
-  test('turns a warm notification response into a message link', () async {
+  test('routes a warm notification response with a UUIDv4 channel', () async {
     final response = Completer<ByteData?>();
     await TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
         .handlePlatformMessage(
@@ -178,6 +178,58 @@ void main() {
     );
   });
 
+  test('routes a warm notification response with a UUIDv5 channel', () async {
+    final response = Completer<ByteData?>();
+    await TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
+        .handlePlatformMessage(
+          _channel.name,
+          _channel.codec.encodeMethodCall(
+            MethodCall('notificationOpened', {
+              'eventId': 'b' * 64,
+              'communityId': 'community-id',
+              'channelId': '9A1657AC-F7AA-5DB0-B632-D8BBEB6DFB50',
+            }),
+          ),
+          response.complete,
+        );
+
+    final envelope = await response.future;
+    expect(envelope, isNotNull);
+    expect(_channel.codec.decodeEnvelope(envelope!), 'handled');
+    expect(
+      pendingPushNotificationLink.value,
+      MessageDeepLink(
+        communityId: 'community-id',
+        channelId: '9a1657ac-f7aa-5db0-b632-d8bbeb6dfb50',
+        messageId: 'b' * 64,
+      ),
+    );
+  });
+
+  test(
+    'rejects a notification response with a malformed channel UUID',
+    () async {
+      final response = Completer<ByteData?>();
+      await TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
+          .handlePlatformMessage(
+            _channel.name,
+            _channel.codec.encodeMethodCall(
+              MethodCall('notificationOpened', {
+                'eventId': 'c' * 64,
+                'communityId': 'community-id',
+                'channelId': '9a1657ac-f7aa-5db0-7632-d8bbeb6dfb50',
+              }),
+            ),
+            response.complete,
+          );
+
+      final envelope = await response.future;
+      expect(envelope, isNotNull);
+      expect(_channel.codec.decodeEnvelope(envelope!), 'ignored');
+      expect(pendingPushNotificationLink.value, isNull);
+    },
+  );
+
   test('pulls a cold-start notification response from native iOS', () async {
     debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
     TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger