diff --git a/mobx/CHANGELOG.md b/mobx/CHANGELOG.md
index 52380b9d..6196cd67 100644
--- a/mobx/CHANGELOG.md
+++ b/mobx/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 2.2.2
+
+- Fix #956: ObservableSet` and `ObservableMap` should not notify all listeners when `observe` with fireImmediately. by [@amondnet](https://github.com/amondnet)
+
 ## 2.2.1
 
 - Reduces unnecessary iterations while using `Iterables` with `addAll`, `insertAll`, `replaceRange`, `setAll` and `setRange` methods. [#942](https://github.com/mobxjs/mobx.dart/pull/942).
diff --git a/mobx/lib/version.dart b/mobx/lib/version.dart
index ebfac1c1..ff46c3cb 100644
--- a/mobx/lib/version.dart
+++ b/mobx/lib/version.dart
@@ -1,4 +1,4 @@
 // Generated via set_version.dart. !!!DO NOT MODIFY BY HAND!!!
 
 /// The current version as per `pubspec.yaml`.
-const version = '2.2.1';
+const version = '2.2.2';
diff --git a/mobx/pubspec.yaml b/mobx/pubspec.yaml
index bbf31ca5..e8abae7b 100644
--- a/mobx/pubspec.yaml
+++ b/mobx/pubspec.yaml
@@ -1,5 +1,5 @@
 name: mobx
-version: 2.2.1
+version: 2.2.2
 description: "MobX is a library for reactively managing the state of your applications. Use the power of observables, actions, and reactions to supercharge your Dart and Flutter apps."
 
 homepage: https://github.com/mobxjs/mobx.dart