diff --git a/CHANGELOG.md b/CHANGELOG.md
index f73b8139..fee24f2f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,12 @@
 # Changelog
 
 
+## 2.0.0-nullsafety.3 - 2021-03-09
+
+### Added
+* Added nullsafety.
+
+
 ## 1.2.4 - 2020-11-12
 
 ### Fixed
diff --git a/example/pubspec.lock b/example/pubspec.lock
index b801a33e..8c0ffa81 100644
--- a/example/pubspec.lock
+++ b/example/pubspec.lock
@@ -92,7 +92,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "1.2.4"
+    version: "2.0.0-nullsafety.3"
   js:
     dependency: transitive
     description:
diff --git a/lib/components/button/gf_button_bar.dart b/lib/components/button/gf_button_bar.dart
index 9fe4ee02..364bb828 100644
--- a/lib/components/button/gf_button_bar.dart
+++ b/lib/components/button/gf_button_bar.dart
@@ -85,6 +85,10 @@ class GFButtonBar extends StatelessWidget {
   /// Defaults to 0.0.
   final double runSpacing;
 
+  /// The buttons to arrange horizontally.
+  /// Typically [GFButton] or [GFIconButton] widgets.
+  final List<Widget> children;
+
   /// How the children within a run should be aligned relative to each other in
   /// the cross axis.
   ///
@@ -154,10 +158,6 @@ class GFButtonBar extends StatelessWidget {
   /// [verticalDirection] must not be null.
   final VerticalDirection verticalDirection;
 
-  /// The buttons to arrange horizontally.
-  /// Typically or [GFButton] or [GFIconButton] widgets.
-  final List<Widget> children;
-
   @override
   Widget build(BuildContext context) => Padding(
         padding: padding,
diff --git a/pubspec.yaml b/pubspec.yaml
index 3ddafed1..dca0c3cc 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,10 +1,10 @@
 name: getwidget
-description: GetWidget is open source libraries that come with pre-build 1000+ UI components. It makes development faster & more enjoyable. You can customize the component as per your need.
-version: 1.2.4
+description: GetWidget is open source library that come with pre-build 1000+ UI components. It makes development faster & more enjoyable. You can customize the component as per your need.
+version: 2.0.0-nullsafety.3
 homepage: https://github.com/ionicfirebaseapp/getwidget
 
 environment:
-  sdk: '>=2.12.0 <3.0.0'
+  sdk: ">=2.12.0 <3.0.0"
 
 dependencies:
   flutter:
@@ -17,4 +17,3 @@ dev_dependencies:
 
 flutter:
   uses-material-design: true
-