diff --git a/packages/stream_chat/lib/src/client/channel.dart b/packages/stream_chat/lib/src/client/channel.dart
index b2887168..a98e9467 100644
--- a/packages/stream_chat/lib/src/client/channel.dart
+++ b/packages/stream_chat/lib/src/client/channel.dart
@@ -1598,7 +1598,7 @@ class ChannelClientState {
     _subscriptions.add(_channel.on(EventType.channelUpdated).listen((Event e) {
       final channel = e.channel!;
       updateChannelState(channelState.copyWith(
-        channel: channel,
+        channel: channelState.channel?.merge(channel),
         members: channel.members,
       ));
     }));
diff --git a/packages/stream_chat/lib/src/core/models/channel_model.dart b/packages/stream_chat/lib/src/core/models/channel_model.dart
index ed7c2c2e..037c1431 100644
--- a/packages/stream_chat/lib/src/core/models/channel_model.dart
+++ b/packages/stream_chat/lib/src/core/models/channel_model.dart
@@ -172,7 +172,7 @@ class ChannelModel {
       updatedAt: other.updatedAt,
       deletedAt: other.deletedAt,
       memberCount: other.memberCount,
-      extraData: other.extraData,
+      extraData: {...extraData, ...other.extraData},
       team: other.team,
       cooldown: other.cooldown,
     );