diff --git a/packages/stream_chat/CHANGELOG.md b/packages/stream_chat/CHANGELOG.md
index 9bffbf5c..349d6c00 100644
--- a/packages/stream_chat/CHANGELOG.md
+++ b/packages/stream_chat/CHANGELOG.md
@@ -7,6 +7,7 @@
   any channel.
 - [[#1047]](https://github.com/GetStream/stream-chat-flutter/issues/1047) `own_capabilities` extraData missing after
   channel update.
+- [[#1054]](https://github.com/GetStream/stream-chat-flutter/issues/1054) Fix `Unsupported operation: Cannot remove from an unmodifiable list`.
 
 ✅ Added
 
diff --git a/packages/stream_chat/lib/src/client/channel.dart b/packages/stream_chat/lib/src/client/channel.dart
index a98e9467..7218cf65 100644
--- a/packages/stream_chat/lib/src/client/channel.dart
+++ b/packages/stream_chat/lib/src/client/channel.dart
@@ -1586,10 +1586,12 @@ class ChannelClientState {
     _subscriptions.add(_channel.on(EventType.memberRemoved).listen((Event e) {
       final user = e.user;
       updateChannelState(channelState.copyWith(
-        members: List.from(
-          channelState.members..removeWhere((m) => m.userId == user!.id),
-        ),
-        read: channelState.read..removeWhere((r) => r.user.id == user!.id),
+        members: channelState.members
+            .where((m) => m.userId != user!.id)
+            .toList(growable: false),
+        read: channelState.read
+            .where((r) => r.user.id != user!.id)
+            .toList(growable: false),
       ));
     }));
   }