diff --git a/example/analysis_options.yaml b/example/analysis_options.yaml
deleted file mode 100644
index 0d29021..0000000
--- a/example/analysis_options.yaml
+++ /dev/null
@@ -1,28 +0,0 @@
-# This file configures the analyzer, which statically analyzes Dart code to
-# check for errors, warnings, and lints.
-#
-# The issues identified by the analyzer are surfaced in the UI of Dart-enabled
-# IDEs (https://dart.dev/tools#ides-and-editors). The analyzer can also be
-# invoked from the command line by running `flutter analyze`.
-
-# The following line activates a set of recommended lints for Flutter apps,
-# packages, and plugins designed to encourage good coding practices.
-include: package:flutter_lints/flutter.yaml
-
-linter:
-  # The lint rules applied to this project can be customized in the
-  # section below to disable rules from the `package:flutter_lints/flutter.yaml`
-  # included above or to enable additional rules. A list of all available lints
-  # and their documentation is published at https://dart.dev/lints.
-  #
-  # Instead of disabling a lint rule for the entire project in the
-  # section below, it can also be suppressed for a single line of code
-  # or a specific dart file by using the `// ignore: name_of_lint` and
-  # `// ignore_for_file: name_of_lint` syntax on the line or in the file
-  # producing the lint.
-  rules:
-    # avoid_print: false  # Uncomment to disable the `avoid_print` rule
-    # prefer_single_quotes: true  # Uncomment to enable the `prefer_single_quotes` rule
-
-# Additional information about this file can be found at
-# https://dart.dev/guides/language/analysis-options
diff --git a/example/lib/main.dart b/example/lib/main.dart
index e965c2c..e3daa49 100644
--- a/example/lib/main.dart
+++ b/example/lib/main.dart
@@ -93,8 +93,10 @@ class ExampleApp extends StatelessWidget {
               onPressed: () {
                 _openSecondSimpleItemPicker(context, countryList);
               },
-              child: Text('Simple Item picker with different theme',
-                  textAlign: TextAlign.center),
+              child: Text(
+                'Simple Item picker with different theme',
+                textAlign: TextAlign.center,
+              ),
             ),
           ),
           SizedBox(
@@ -112,8 +114,10 @@ class ExampleApp extends StatelessWidget {
               onPressed: () {
                 _openDatePickerWithButtonStyle(context);
               },
-              child: Text('Date Picker with button style',
-                  textAlign: TextAlign.center),
+              child: Text(
+                'Date Picker with button style',
+                textAlign: TextAlign.center,
+              ),
             ),
           ),
           SizedBox(
@@ -186,8 +190,10 @@ class ExampleApp extends StatelessWidget {
               onPressed: () {
                 _openDateTimePickerWithCustomButton(context);
               },
-              child: Text('Bottom picker with custom button',
-                  textAlign: TextAlign.center),
+              child: Text(
+                'Bottom picker with custom button',
+                textAlign: TextAlign.center,
+              ),
             ),
           ),
           SizedBox(
diff --git a/example/pubspec.lock b/example/pubspec.lock
index 7fc366b..3e390fe 100644
--- a/example/pubspec.lock
+++ b/example/pubspec.lock
@@ -5,10 +5,10 @@ packages:
     dependency: transitive
     description:
       name: async
-      sha256: d2872f9c19731c2e5f10444b14686eb7cc85c76274bd6c16e1816bff9a3bab63
+      sha256: "758e6d74e971c3e5aceb4110bfd6698efc7f501675bcfe0c775459a8140750eb"
       url: "https://pub.dev"
     source: hosted
-    version: "2.12.0"
+    version: "2.13.0"
   boolean_selector:
     dependency: transitive
     description:
@@ -60,10 +60,10 @@ packages:
     dependency: transitive
     description:
       name: fake_async
-      sha256: "6a95e56b2449df2273fd8c45a662d6947ce1ebb7aafe80e550a3f68297f3cacc"
+      sha256: "5368f224a74523e8d2e7399ea1638b37aecfca824a3cc4dfdf77bf1fa905ac44"
       url: "https://pub.dev"
     source: hosted
-    version: "1.3.2"
+    version: "1.3.3"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -83,18 +83,18 @@ packages:
     dependency: "direct main"
     description:
       name: intl
-      sha256: d6f56758b7d3014a48af9701c085700aac781a92a87a62b1333b46d8879661cf
+      sha256: "3df61194eb431efc39c4ceba583b95633a403f46c9fd341e550ce0bfa50e9aa5"
       url: "https://pub.dev"
     source: hosted
-    version: "0.19.0"
+    version: "0.20.2"
   leak_tracker:
     dependency: transitive
     description:
       name: leak_tracker
-      sha256: c35baad643ba394b40aac41080300150a4f08fd0fd6a10378f8f7c6bc161acec
+      sha256: "6bb818ecbdffe216e81182c2f0714a2e62b593f4a4f13098713ff1685dfb6ab0"
       url: "https://pub.dev"
     source: hosted
-    version: "10.0.8"
+    version: "10.0.9"
   leak_tracker_flutter_testing:
     dependency: transitive
     description:
@@ -208,10 +208,10 @@ packages:
     dependency: transitive
     description:
       name: vm_service
-      sha256: "0968250880a6c5fe7edc067ed0a13d4bae1577fe2771dcf3010d52c4a9d3ca14"
+      sha256: ddfa8d30d89985b96407efce8acbdd124701f96741f2d981ca860662f1c0dc02
       url: "https://pub.dev"
     source: hosted
-    version: "14.3.1"
+    version: "15.0.0"
 sdks:
   dart: ">=3.7.0-0 <4.0.0"
   flutter: ">=3.18.0-18.0.pre.54"
diff --git a/lib/bottom_picker.dart b/lib/bottom_picker.dart
index e0c10c5..bcdea1b 100644
--- a/lib/bottom_picker.dart
+++ b/lib/bottom_picker.dart
@@ -33,7 +33,7 @@ class BottomPicker extends StatefulWidget {
   late BottomPickerType bottomPickerType;
 
   BottomPicker({
-    Key? key,
+    super.key,
     required this.pickerTitle,
     this.pickerDescription,
     required this.items,
@@ -68,7 +68,7 @@ class BottomPicker extends StatefulWidget {
     this.buttonStyle,
     this.closeWidget,
     this.closeOnSubmit = true,
-  }) : super(key: key) {
+  }) {
     dateOrder = null;
     onRangeDateSubmitPressed = null;
     bottomPickerType = BottomPickerType.simple;
@@ -80,7 +80,7 @@ class BottomPicker extends StatefulWidget {
   }
 
   BottomPicker.date({
-    Key? key,
+    super.key,
     required this.pickerTitle,
     this.pickerDescription,
     this.titlePadding = const EdgeInsets.all(0),
@@ -116,7 +116,7 @@ class BottomPicker extends StatefulWidget {
     this.itemExtent = 35.0,
     this.closeWidget,
     this.closeOnSubmit = true,
-  }) : super(key: key) {
+  }) {
     datePickerMode = CupertinoDatePickerMode.date;
     bottomPickerType = BottomPickerType.dateTime;
     use24hFormat = false;
@@ -125,7 +125,7 @@ class BottomPicker extends StatefulWidget {
   }
 
   BottomPicker.monthYear({
-    Key? key,
+    super.key,
     required this.pickerTitle,
     this.pickerDescription,
     this.titlePadding = const EdgeInsets.all(0),
@@ -160,7 +160,7 @@ class BottomPicker extends StatefulWidget {
     this.itemExtent = 35.0,
     this.closeWidget,
     this.closeOnSubmit = true,
-  }) : super(key: key) {
+  }) {
     datePickerMode = CupertinoDatePickerMode.monthYear;
     bottomPickerType = BottomPickerType.dateTime;
     use24hFormat = false;
@@ -170,7 +170,7 @@ class BottomPicker extends StatefulWidget {
   }
 
   BottomPicker.dateTime({
-    Key? key,
+    super.key,
     required this.pickerTitle,
     this.pickerDescription,
     this.titlePadding = const EdgeInsets.all(0),
@@ -209,7 +209,7 @@ class BottomPicker extends StatefulWidget {
     this.showTimeSeparator = false,
     this.closeWidget,
     this.closeOnSubmit = true,
-  }) : super(key: key) {
+  }) {
     datePickerMode = CupertinoDatePickerMode.dateAndTime;
     bottomPickerType = BottomPickerType.dateTime;
     onRangeDateSubmitPressed = null;
@@ -217,7 +217,7 @@ class BottomPicker extends StatefulWidget {
   }
 
   BottomPicker.time({
-    Key? key,
+    super.key,
     required this.pickerTitle,
     this.pickerDescription,
     required this.initialTime,
@@ -255,7 +255,7 @@ class BottomPicker extends StatefulWidget {
     this.itemExtent = 30,
     this.closeWidget,
     this.closeOnSubmit = true,
-  }) : super(key: key) {
+  }) {
     datePickerMode = CupertinoDatePickerMode.time;
     bottomPickerType = BottomPickerType.time;
     dateOrder = null;
@@ -265,7 +265,7 @@ class BottomPicker extends StatefulWidget {
   }
 
   BottomPicker.timer({
-    Key? key,
+    super.key,
     required this.pickerTitle,
     this.timerPickerMode = CupertinoTimerPickerMode.hm,
     this.timerSecondsInterval = 1,
@@ -301,7 +301,7 @@ class BottomPicker extends StatefulWidget {
     this.buttonStyle,
     this.closeWidget,
     this.closeOnSubmit = true,
-  }) : super(key: key) {
+  }) {
     dateOrder = null;
     onRangeDateSubmitPressed = null;
     bottomPickerType = BottomPickerType.timer;
@@ -311,7 +311,7 @@ class BottomPicker extends StatefulWidget {
   }
 
   BottomPicker.range({
-    Key? key,
+    super.key,
     required this.pickerTitle,
     this.pickerDescription,
     required this.onRangeDateSubmitPressed,
@@ -348,7 +348,7 @@ class BottomPicker extends StatefulWidget {
     this.itemExtent = 30,
     this.closeWidget,
     this.closeOnSubmit = true,
-  }) : super(key: key) {
+  }) {
     datePickerMode = CupertinoDatePickerMode.date;
     bottomPickerType = BottomPickerType.rangeDate;
     dateOrder = null;
@@ -372,7 +372,7 @@ class BottomPicker extends StatefulWidget {
   }
 
   BottomPicker.rangeTime({
-    Key? key,
+    super.key,
     required this.pickerTitle,
     this.pickerDescription,
     required this.onRangeTimeSubmitPressed,
@@ -411,7 +411,7 @@ class BottomPicker extends StatefulWidget {
     this.itemExtent = 30,
     this.closeWidget,
     this.closeOnSubmit = true,
-  }) : super(key: key) {
+  }) {
     datePickerMode = CupertinoDatePickerMode.time;
     bottomPickerType = BottomPickerType.rangeTime;
     dateOrder = null;
@@ -693,9 +693,9 @@ class BottomPicker extends StatefulWidget {
   /// Indicates whether the time seperator (":") will be shown or not.
   bool showTimeSeparator = false;
 
-  /// Indiacate whether the bottom picker will be closed (poped out of the Navigator) 
+  /// Indiacate whether the bottom picker will be closed (poped out of the Navigator)
   /// when the submit button is pressed.
-  /// 
+  ///
   /// By default closeOnSubmit = true.
   final bool closeOnSubmit;
 
@@ -724,10 +724,10 @@ class BottomPicker extends StatefulWidget {
   }
 
   @override
-  _BottomPickerState createState() => _BottomPickerState();
+  BottomPickerState createState() => BottomPickerState();
 }
 
-class _BottomPickerState extends State<BottomPicker> {
+class BottomPickerState extends State<BottomPicker> {
   late int selectedItemIndex;
   late DateTime selectedDateTime;
 
@@ -997,7 +997,7 @@ class _BottomPickerState extends State<BottomPicker> {
   }
 
   /// Handle the key press event
-  bool _onKeyPressed(final keyData) {
+  bool _onKeyPressed(KeyData keyData) {
     if (keyData.logical == LogicalKeyboardKey.escape.keyId &&
         !disposed &&
         widget.dismissable) {
diff --git a/lib/widgets/bottom_picker_button.dart b/lib/widgets/bottom_picker_button.dart
index 8d22f06..7d00bac 100644
--- a/lib/widgets/bottom_picker_button.dart
+++ b/lib/widgets/bottom_picker_button.dart
@@ -12,7 +12,7 @@ class BottomPickerButton extends StatelessWidget {
   final BoxDecoration? style;
 
   const BottomPickerButton({
-    Key? key,
+    super.key,
     required this.onClick,
     this.theme = BottomPickerTheme.blue,
     this.gradients,
@@ -21,7 +21,7 @@ class BottomPickerButton extends StatelessWidget {
     this.buttonWidth,
     this.buttonChild,
     this.style,
-  }) : super(key: key);
+  });
 
   @override
   Widget build(BuildContext context) {
diff --git a/lib/widgets/close_icon.dart b/lib/widgets/close_icon.dart
index a44be49..deaaa07 100644
--- a/lib/widgets/close_icon.dart
+++ b/lib/widgets/close_icon.dart
@@ -6,11 +6,11 @@ class CloseIcon extends StatelessWidget {
   final double closeIconSize;
 
   const CloseIcon({
-    Key? key,
+    super.key,
     required this.onPress,
     required this.iconColor,
     required this.closeIconSize,
-  }) : super(key: key);
+  });
 
   @override
   Widget build(BuildContext context) {
diff --git a/lib/widgets/date_picker.dart b/lib/widgets/date_picker.dart
index 1300bad..8dbcd41 100644
--- a/lib/widgets/date_picker.dart
+++ b/lib/widgets/date_picker.dart
@@ -15,7 +15,7 @@ class DatePicker extends StatelessWidget {
   final bool showTimeSeparator;
 
   const DatePicker({
-    Key? key,
+    super.key,
     required this.initialDateTime,
     this.minuteInterval = 1,
     this.maxDateTime,
@@ -27,7 +27,7 @@ class DatePicker extends StatelessWidget {
     this.dateOrder,
     this.itemExtent = 0,
     this.showTimeSeparator = false,
-  }) : super(key: key);
+  });
 
   @override
   Widget build(BuildContext context) {
diff --git a/lib/widgets/range_picker.dart b/lib/widgets/range_picker.dart
index a3b297a..9feae3a 100644
--- a/lib/widgets/range_picker.dart
+++ b/lib/widgets/range_picker.dart
@@ -19,7 +19,7 @@ class RangePicker extends StatefulWidget {
   final bool showTimeSeperator;
 
   const RangePicker({
-    Key? key,
+    super.key,
     required this.initialFirstDateTime,
     required this.initialSecondDateTime,
     required this.maxFirstDate,
@@ -35,7 +35,7 @@ class RangePicker extends StatefulWidget {
     this.minuteInterval,
     this.itemExtent,
     this.showTimeSeperator = false,
-  }) : super(key: key);
+  });
 
   @override
   State<RangePicker> createState() => _RangePickerState();
diff --git a/lib/widgets/simple_picker.dart b/lib/widgets/simple_picker.dart
index 2fdb5fa..193d38f 100644
--- a/lib/widgets/simple_picker.dart
+++ b/lib/widgets/simple_picker.dart
@@ -12,14 +12,14 @@ class SimplePicker extends StatelessWidget {
   final Widget? selectionOverlay;
 
   const SimplePicker({
-    Key? key,
+    super.key,
     required this.items,
     required this.onChange,
     required this.selectedItemIndex,
     required this.textStyle,
     required this.itemExtent,
     this.selectionOverlay,
-  }) : super(key: key);
+  });
 
   @override
   Widget build(BuildContext context) {
diff --git a/lib/widgets/time_picker.dart b/lib/widgets/time_picker.dart
index da790fc..973c210 100644
--- a/lib/widgets/time_picker.dart
+++ b/lib/widgets/time_picker.dart
@@ -11,7 +11,7 @@ class TimePicker extends StatelessWidget {
   final int secondInterval;
 
   const TimePicker({
-    Key? key,
+    super.key,
     this.minuteInterval = 1,
     required this.mode,
     required this.textStyle,
@@ -19,7 +19,7 @@ class TimePicker extends StatelessWidget {
     required this.onChange,
     required this.initialDuration,
     this.secondInterval = 1,
-  }) : super(key: key);
+  });
 
   @override
   Widget build(BuildContext context) {
diff --git a/pubspec.lock b/pubspec.lock
index 12252f1..45ad492 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -5,10 +5,10 @@ packages:
     dependency: transitive
     description:
       name: async
-      sha256: d2872f9c19731c2e5f10444b14686eb7cc85c76274bd6c16e1816bff9a3bab63
+      sha256: "758e6d74e971c3e5aceb4110bfd6698efc7f501675bcfe0c775459a8140750eb"
       url: "https://pub.dev"
     source: hosted
-    version: "2.12.0"
+    version: "2.13.0"
   boolean_selector:
     dependency: transitive
     description:
@@ -45,10 +45,10 @@ packages:
     dependency: transitive
     description:
       name: fake_async
-      sha256: "6a95e56b2449df2273fd8c45a662d6947ce1ebb7aafe80e550a3f68297f3cacc"
+      sha256: "5368f224a74523e8d2e7399ea1638b37aecfca824a3cc4dfdf77bf1fa905ac44"
       url: "https://pub.dev"
     source: hosted
-    version: "1.3.2"
+    version: "1.3.3"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -58,10 +58,10 @@ packages:
     dependency: "direct dev"
     description:
       name: flutter_lints
-      sha256: b543301ad291598523947dc534aaddc5aaad597b709d2426d3a0e0d44c5cb493
+      sha256: "3105dc8492f6183fb076ccf1f351ac3d60564bff92e20bfc4af9cc1651f4e7e1"
       url: "https://pub.dev"
     source: hosted
-    version: "1.0.4"
+    version: "6.0.0"
   flutter_test:
     dependency: "direct dev"
     description: flutter
@@ -71,10 +71,10 @@ packages:
     dependency: transitive
     description:
       name: leak_tracker
-      sha256: c35baad643ba394b40aac41080300150a4f08fd0fd6a10378f8f7c6bc161acec
+      sha256: "6bb818ecbdffe216e81182c2f0714a2e62b593f4a4f13098713ff1685dfb6ab0"
       url: "https://pub.dev"
     source: hosted
-    version: "10.0.8"
+    version: "10.0.9"
   leak_tracker_flutter_testing:
     dependency: transitive
     description:
@@ -95,10 +95,10 @@ packages:
     dependency: transitive
     description:
       name: lints
-      sha256: a2c3d198cb5ea2e179926622d433331d8b58374ab8f29cdda6e863bd62fd369c
+      sha256: a5e2b223cb7c9c8efdc663ef484fdd95bb243bff242ef5b13e26883547fce9a0
       url: "https://pub.dev"
     source: hosted
-    version: "1.0.1"
+    version: "6.0.0"
   matcher:
     dependency: transitive
     description:
@@ -196,10 +196,10 @@ packages:
     dependency: transitive
     description:
       name: vm_service
-      sha256: "0968250880a6c5fe7edc067ed0a13d4bae1577fe2771dcf3010d52c4a9d3ca14"
+      sha256: ddfa8d30d89985b96407efce8acbdd124701f96741f2d981ca860662f1c0dc02
       url: "https://pub.dev"
     source: hosted
-    version: "14.3.1"
+    version: "15.0.0"
 sdks:
-  dart: ">=3.7.0-0 <4.0.0"
+  dart: ">=3.8.0 <4.0.0"
   flutter: ">=3.18.0-18.0.pre.54"
diff --git a/pubspec.yaml b/pubspec.yaml
index 8938957..0ffc5e0 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -11,5 +11,5 @@ dependencies:
 dev_dependencies:
   flutter_test:
     sdk: flutter
-  flutter_lints: ^1.0.4
+  flutter_lints: ^6.0.0
 flutter: null