diff --git a/CHANGELOG.md b/CHANGELOG.md
index be0a206..a716348 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+## 2.2.1
+
+- Changed to Flutter 3.24.0 and Dart 3.5 or higher
+  - This should have been done at version 2.2.0.
+
 ## 2.2.0
 
 - Fix deprecated API use (ButtonBar, PopInvokedCallback)
diff --git a/pubspec.yaml b/pubspec.yaml
index 0de8f15..1190e60 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,12 +1,12 @@
 name: adaptive_dialog
 description: Show alert dialog or modal action sheet adaptively according to platform.
-version: 2.2.0
+version: 2.2.1
 repository: https://github.com/mono0926/adaptive_dialog
 funding:
   - https://github.com/sponsors/mono0926
 environment:
-  sdk: ^3.4.0
-  flutter: '>=3.22.0'
+  sdk: ^3.5.0
+  flutter: '>=3.24.0'
 dependencies:
   animations: ^2.0.3
   collection: ^1.15.0