diff --git a/packages/hydrated_bloc/CHANGELOG.md b/packages/hydrated_bloc/CHANGELOG.md
index 1fd14537d86..f40b4208a22 100644
--- a/packages/hydrated_bloc/CHANGELOG.md
+++ b/packages/hydrated_bloc/CHANGELOG.md
@@ -1,3 +1,10 @@
+# 9.1.1
+
+- docs: upgrade to Dart 3 ([#3809](https://github.com/felangel/bloc/pull/3809))
+- refactor: standardize analysis_options ([#3809](https://github.com/felangel/bloc/pull/3809))
+- refactor: fix `unawaited` sdk constraint ([#3809](https://github.com/felangel/bloc/pull/3809))
+- refactor: update sdk constraints and fix analysis warnings ([#3809](https://github.com/felangel/bloc/pull/3809))
+
 # 9.1.0
 
 - chore: add screenshots to `pubspec.yaml` ([#3721](https://github.com/felangel/bloc/pull/3721))
diff --git a/packages/hydrated_bloc/README.md b/packages/hydrated_bloc/README.md
index 1386dd1c156..5fcee88c019 100644
--- a/packages/hydrated_bloc/README.md
+++ b/packages/hydrated_bloc/README.md
@@ -87,8 +87,8 @@ class CounterCubit extends HydratedCubit<int> {
 ### Create a HydratedBloc
 
 ```dart
-abstract class CounterEvent {}
-class CounterIncrementPressed extends CounterEvent {}
+sealed class CounterEvent {}
+final class CounterIncrementPressed extends CounterEvent {}
 
 class CounterBloc extends HydratedBloc<CounterEvent, int> {
   CounterBloc() : super(0) {
diff --git a/packages/hydrated_bloc/pubspec.yaml b/packages/hydrated_bloc/pubspec.yaml
index da31256edc4..c412dd08c5f 100644
--- a/packages/hydrated_bloc/pubspec.yaml
+++ b/packages/hydrated_bloc/pubspec.yaml
@@ -1,13 +1,13 @@
 name: hydrated_bloc
 description: An extension to the bloc state management library which automatically persists and restores bloc states.
-version: 9.1.0
+version: 9.1.1
 repository: https://github.com/felangel/bloc/tree/master/packages/hydrated_bloc
 issue_tracker: https://github.com/felangel/bloc/issues
 homepage: https://bloclibrary.dev
 documentation: https://bloclibrary.dev/#/gettingstarted
 
 environment:
-  sdk: ">=2.12.0 <3.0.0"
+  sdk: ">=2.12.0 <4.0.0"
 
 dependencies:
   bloc: ^8.1.1