diff --git a/CHANGELOG.md b/CHANGELOG.md
index e3cbca2..17223fa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## 0.4.1
+
+* Change "SystemChannels.lifecycle" to "AppLifecycleListener"
+* Fix browser info OS
+* Fix invalid appKey message
+
 ## 0.4.0
 
 * Persistant storage for offline events
diff --git a/lib/aptabase_flutter.dart b/lib/aptabase_flutter.dart
index 25ce69a..0daabe9 100644
--- a/lib/aptabase_flutter.dart
+++ b/lib/aptabase_flutter.dart
@@ -27,7 +27,7 @@ enum _SendResult { disabled, success, discard, tryAgain }
 class Aptabase {
   Aptabase._();
 
-  static const _sdkVersion = "aptabase_flutter@0.4.0";
+  static const _sdkVersion = "aptabase_flutter@0.4.1";
   static const _sessionTimeout = Duration(hours: 1);
 
   static const Map<String, String> _hosts = {
diff --git a/pubspec.yaml b/pubspec.yaml
index 728eb94..4023f12 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: aptabase_flutter
 description: "Flutter SDK for Aptabase: Open Source Privacy-First and Simple Analytics for Mobile, Desktop and Web Apps"
-version: 0.4.0
+version: 0.4.1
 homepage: https://aptabase.com
 repository: https://github.com/aptabase/aptabase_flutter
 issue_tracker: https://github.com/aptabase/aptabase_flutter/issues