diff --git a/packages/stream_chat/CHANGELOG.md b/packages/stream_chat/CHANGELOG.md
index 91077303..0c35a7a3 100644
--- a/packages/stream_chat/CHANGELOG.md
+++ b/packages/stream_chat/CHANGELOG.md
@@ -6,16 +6,21 @@
 
 🐞 Fixed
 
-- [[#890]](https://github.com/GetStream/stream-chat-flutter/pull/890). Fixed Reactions not updating on thread messages. Thanks [bstolinski](https://github.com/bstolinski).
+- [[#890]](https://github.com/GetStream/stream-chat-flutter/pull/890) Fixed Reactions not updating on thread messages.
+  Thanks [bstolinski](https://github.com/bstolinski).
+- [[#897]](https://github.com/GetStream/stream-chat-flutter/issues/897) Fixed error type mis-match in `AuthInterceptor`.
+
 ## 3.4.0
 
 🐞 Fixed
 
 - [[#857]](https://github.com/GetStream/stream-chat-flutter/issues/857) Channel now listens for member ban/unban and
   updates the channel state with the latest data.
-- [[#748]](https://github.com/GetStream/stream-chat-flutter/issues/748) `Message.user` is now also included while saving users in persistence.
+- [[#748]](https://github.com/GetStream/stream-chat-flutter/issues/748) `Message.user` is now also included while saving
+  users in persistence.
 - [[#871]](https://github.com/GetStream/stream-chat-flutter/issues/871) Fixed thread message deletion.
-- [[#846]](https://github.com/GetStream/stream-chat-flutter/issues/846) Fixed `message.ownReactions` getting truncated when receiving a reaction event.
+- [[#846]](https://github.com/GetStream/stream-chat-flutter/issues/846) Fixed `message.ownReactions` getting truncated
+  when receiving a reaction event.
 - Add check for invalid image URLs
 - Fix `channelState.pinnedMessagesStream` getting reset to `0` after a channel update.
 - Fixed `unreadCount` after removing user from a channel.
diff --git a/packages/stream_chat/lib/src/core/http/interceptor/auth_interceptor.dart b/packages/stream_chat/lib/src/core/http/interceptor/auth_interceptor.dart
index 37f618f5..0ef1a408 100644
--- a/packages/stream_chat/lib/src/core/http/interceptor/auth_interceptor.dart
+++ b/packages/stream_chat/lib/src/core/http/interceptor/auth_interceptor.dart
@@ -49,10 +49,13 @@ class AuthInterceptor extends Interceptor {
     DioError err,
     ErrorInterceptorHandler handler,
   ) async {
-    ErrorResponse? error;
     final data = err.response?.data;
-    if (data != null) error = ErrorResponse.fromJson(data);
-    if (error?.code == ChatErrorCode.tokenExpired.code) {
+    if (data == null || data is! Map<String, dynamic>) {
+      return handler.next(err);
+    }
+
+    final error = ErrorResponse.fromJson(data);
+    if (error.code == ChatErrorCode.tokenExpired.code) {
       if (_tokenManager.isStatic) return handler.next(err);
       _client.lock();
       await _tokenManager.loadToken(refresh: true);