diff --git a/CHANGELOG.md b/CHANGELOG.md
index e531906..71370dd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## NEXT
+
+* Update the Dart SDK constraint.
+
 ## 0.2.6
 
 * Upgrade ffigen to 7.2.9.
diff --git a/packages/tizen_interop_callbacks/CHANGELOG.md b/packages/tizen_interop_callbacks/CHANGELOG.md
index 6073234..be0b24e 100644
--- a/packages/tizen_interop_callbacks/CHANGELOG.md
+++ b/packages/tizen_interop_callbacks/CHANGELOG.md
@@ -1,3 +1,7 @@
+## NEXT
+
+* Align Dart and Flutter SDK constraints.
+
 ## 0.1.0
 
 * Initial release.
diff --git a/packages/tizen_interop_callbacks/README.md b/packages/tizen_interop_callbacks/README.md
index 2e012be..a81c6f6 100644
--- a/packages/tizen_interop_callbacks/README.md
+++ b/packages/tizen_interop_callbacks/README.md
@@ -1,5 +1,7 @@
 # tizen_interop_callbacks
 
+[![pub package](https://img.shields.io/pub/v/tizen_interop_callbacks.svg)](https://pub.dev/packages/tizen_interop_callbacks)
+
 A Flutter plugin to resolve issues related to the error message: `Cannot invoke native callback outside an isolate`.
 
 This package is designed to be used with the [`tizen_interop`](https://pub.dev/packages/tizen_interop) package.
diff --git a/packages/tizen_interop_callbacks/example/pubspec.yaml b/packages/tizen_interop_callbacks/example/pubspec.yaml
index 035717f..3f96b31 100644
--- a/packages/tizen_interop_callbacks/example/pubspec.yaml
+++ b/packages/tizen_interop_callbacks/example/pubspec.yaml
@@ -3,7 +3,8 @@ description: Demonstrates how to use the tizen_interop_callbacks plugin.
 publish_to: "none"
 
 environment:
-  sdk: ">=2.18.0 <3.0.0"
+  sdk: ">=2.18.0 <4.0.0"
+  flutter: ">=3.3.0"
 
 dependencies:
   ffi: ^2.0.1
diff --git a/packages/tizen_interop_callbacks/pubspec.yaml b/packages/tizen_interop_callbacks/pubspec.yaml
index 9e816fd..dd2f843 100644
--- a/packages/tizen_interop_callbacks/pubspec.yaml
+++ b/packages/tizen_interop_callbacks/pubspec.yaml
@@ -5,8 +5,8 @@ repository: https://github.com/flutter-tizen/tizen_interop/tree/main/packages/ti
 version: 0.1.0
 
 environment:
-  sdk: ">=2.18.0 <3.0.0"
-  flutter: ">=2.5.0"
+  sdk: ">=2.18.0 <4.0.0"
+  flutter: ">=3.3.0"
 
 dependencies:
   ffi: ^2.0.1
diff --git a/pubspec.yaml b/pubspec.yaml
index e9b2fd5..ff74107 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -4,7 +4,7 @@ homepage: https://github.com/flutter-tizen/tizen_interop
 version: 0.2.6
 
 environment:
-  sdk: ">=2.17.0 <3.0.0"
+  sdk: ">=2.18.0 <4.0.0"
 
 dependencies:
   ffi: ^2.0.1
diff --git a/scripts/README.md b/scripts/README.md
index a531cac..1c83704 100644
--- a/scripts/README.md
+++ b/scripts/README.md
@@ -23,9 +23,10 @@
    scripts/ffigen_helper.sh <version>
    ```
 
-4. Update callbacks data
+4. Update callbacks data.
+
    * Run `./generate_callbacks.sh verify` to check type substitution.
      Build errors will have to be addressed by editing `gen_callbacks.py`.
      If substitution is not found or assert fails - edit the type mapping
-     (see CallbackDataCollector.type_substitute() and maps used there: KNOWN\_TYPES, SPECIAL\_TYPES).
+     (see `CallbackDataCollector.type_substitute()` and maps used there: `KNOWN_TYPES`, `SPECIAL_TYPES`).
    * Run `./generate_callbacks.sh` to update `callbacks.cc` with callbacks data.