diff --git a/lib/analytics.dart b/lib/analytics.dart
index 9bbef76..41fcf06 100644
--- a/lib/analytics.dart
+++ b/lib/analytics.dart
@@ -5,7 +5,7 @@ import 'package:nererun/entity/off_timer_type.dart';
 import 'package:nererun/entity/product.dart';
 import 'package:nererun/entity/top_banner_setting.dart';
 
-final firebaseAnalytics = FirebaseAnalytics();
+final firebaseAnalytics = FirebaseAnalytics.instance;
 
 class Analytics {
   String screenName = '';
diff --git a/lib/feature/home/home.dart b/lib/feature/home/home.dart
index 13ef8fe..53d6ac0 100644
--- a/lib/feature/home/home.dart
+++ b/lib/feature/home/home.dart
@@ -76,7 +76,6 @@ class HomeScreen extends HookConsumerWidget {
         );
       },
       error: (error, stackTrace) {
-        ref.refresh(homeAsyncStateProvider);
         return Container();
       },
       loading: () => const ScaffoldIndicator(),
diff --git a/lib/feature/off_timer/off_timer_page.dart b/lib/feature/off_timer/off_timer_page.dart
index cccc92a..b5e635f 100644
--- a/lib/feature/off_timer/off_timer_page.dart
+++ b/lib/feature/off_timer/off_timer_page.dart
@@ -7,7 +7,6 @@ import 'package:nererun/components/scaffold_indicator.dart';
 import 'package:nererun/entity/off_timer_type.dart';
 import 'package:nererun/feature/off_timer/components/off_timer_button.dart';
 import 'package:nererun/feature/off_timer/off_timer_page_current_type_state.dart';
-import 'package:nererun/feature/off_timer/off_timer_page_state.codegen.dart';
 import 'package:nererun/feature/off_timer/off_timer_page_state_notifier.dart';
 import 'package:nererun/resource/color.dart';
 import 'package:nererun/resource/text_style.dart';
@@ -76,7 +75,6 @@ class OffTimerScreen extends HookConsumerWidget {
         );
       },
       error: (error, stackTrace) {
-        ref.refresh(offTimerStateProvider);
         return Container();
       },
       loading: () => const ScaffoldIndicator(),
diff --git a/lib/feature/premium/components/premium_purchase.dart b/lib/feature/premium/components/premium_purchase.dart
deleted file mode 100644
index da2765e..0000000
--- a/lib/feature/premium/components/premium_purchase.dart
+++ /dev/null
@@ -1,80 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:nererun/feature/premium/components/premium_purchase_mini_button.dart';
-import 'package:nererun/feature/premium/components/premium_restore_mini_button.dart';
-import 'package:nererun/resource/color.dart';
-import 'package:nererun/resource/text_style.dart';
-import 'package:nererun/util/assets.dart';
-
-class PremiumPurchase extends StatelessWidget {
-  final Function(BuildContext context) purchase;
-  final Function(BuildContext context) restore;
-
-  const PremiumPurchase({
-    Key? key,
-    required this.purchase,
-    required this.restore,
-  }) : super(key: key);
-
-  @override
-  Widget build(BuildContext context) {
-    return Stack(
-      children: [
-        Image.asset(
-          Assets.png('premium_background'),
-          width: MediaQuery.of(context).size.width,
-          height: MediaQuery.of(context).size.width,
-        ),
-        Column(
-          crossAxisAlignment: CrossAxisAlignment.start,
-          children: [
-            Padding(
-              padding: const EdgeInsets.only(left: 32),
-              child: Column(
-                crossAxisAlignment: CrossAxisAlignment.start,
-                children: [
-                  const SizedBox(height: 56),
-                  Image.asset(
-                    Assets.png('premium_header'),
-                    width: 238,
-                    height: 43,
-                  ),
-                  const SizedBox(height: 8),
-                  Text(
-                    '￥960/ 月を\n２週間無料でお試し',
-                    style: AppTextStyle.header2(AppColor.white),
-                  ),
-                  const SizedBox(height: 16),
-                ],
-              ),
-            ),
-            Padding(
-              padding: const EdgeInsets.only(left: 24),
-              child: Column(
-                crossAxisAlignment: CrossAxisAlignment.start,
-                children: [
-                  Text(
-                    '登録から13日後の解約期限までに\n解約した場合、料金は一切かかりません',
-                    style: AppTextStyle.body1(AppColor.white),
-                  ),
-                  const SizedBox(height: 16),
-                  Row(
-                    children: [
-                      PremiumPurchaseMiniButton(onTap: purchase),
-                      const SizedBox(width: 12),
-                      PremiumRestoreMiniButton(onTap: restore),
-                    ],
-                  ),
-                  const SizedBox(height: 16),
-                  Text(
-                    '※無料トライアルは初めて登録する方が対象です',
-                    style: AppTextStyle.body4(AppColor.gray3),
-                  ),
-                ],
-              ),
-            ),
-          ],
-        ),
-      ],
-    );
-  }
-}
diff --git a/lib/feature/premium/components/premium_purchase_button.dart b/lib/feature/premium/components/premium_purchase_button.dart
deleted file mode 100644
index b9ad759..0000000
--- a/lib/feature/premium/components/premium_purchase_button.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:nererun/components/rounded.dart';
-import 'package:nererun/resource/color.dart';
-import 'package:nererun/resource/text_style.dart';
-
-class PremiumPurchaseButton extends StatelessWidget {
-  final Function(BuildContext context) onTap;
-
-  const PremiumPurchaseButton({
-    Key? key,
-    required this.onTap,
-  }) : super(key: key);
-
-  @override
-  Widget build(BuildContext context) {
-    return RoundedInk(
-      key,
-      radius: 8,
-      color: AppColor.blue,
-      onTap: onTap,
-      child: SizedBox(
-        height: 58,
-        width: double.infinity,
-        child: Column(
-          mainAxisAlignment: MainAxisAlignment.center,
-          children: [
-            Text(
-              'ネレルン プレミアムに登録',
-              style: AppTextStyle.body1(AppColor.white),
-            ),
-            Text(
-              '￥960/月',
-              style: AppTextStyle.body2(AppColor.white),
-            ),
-          ],
-        ),
-      ),
-    );
-  }
-}
diff --git a/lib/feature/premium/components/premium_purchase_mini_button.dart b/lib/feature/premium/components/premium_purchase_mini_button.dart
deleted file mode 100644
index 7f373be..0000000
--- a/lib/feature/premium/components/premium_purchase_mini_button.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:nererun/components/rounded.dart';
-import 'package:nererun/resource/color.dart';
-import 'package:nererun/resource/text_style.dart';
-
-class PremiumPurchaseMiniButton extends StatelessWidget {
-  final Function(BuildContext context) onTap;
-
-  const PremiumPurchaseMiniButton({
-    Key? key,
-    required this.onTap,
-  }) : super(key: key);
-
-  @override
-  Widget build(BuildContext context) {
-    return RoundedInk(
-      key,
-      radius: 20,
-      color: AppColor.blue,
-      onTap: onTap,
-      child: SizedBox(
-        height: 40,
-        width: 188,
-        child: Row(
-          crossAxisAlignment: CrossAxisAlignment.center,
-          children: [
-            const Spacer(),
-            Text(
-              'ネレルン プレミアムに登録',
-              style: AppTextStyle.body2(AppColor.white),
-            ),
-            const Spacer(),
-          ],
-        ),
-      ),
-    );
-  }
-}
diff --git a/lib/feature/premium/components/premium_restore_mini_button.dart b/lib/feature/premium/components/premium_restore_mini_button.dart
deleted file mode 100644
index 2a38999..0000000
--- a/lib/feature/premium/components/premium_restore_mini_button.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:nererun/components/rounded.dart';
-import 'package:nererun/resource/color.dart';
-import 'package:nererun/resource/text_style.dart';
-
-class PremiumRestoreMiniButton extends StatelessWidget {
-  final Function(BuildContext context) onTap;
-
-  const PremiumRestoreMiniButton({
-    Key? key,
-    required this.onTap,
-  }) : super(key: key);
-
-  @override
-  Widget build(BuildContext context) {
-    return RoundedInk(
-      key,
-      radius: 20,
-      onTap: onTap,
-      child: SizedBox(
-        height: 40,
-        width: 115,
-        child: Row(
-          crossAxisAlignment: CrossAxisAlignment.center,
-          children: [
-            const Spacer(),
-            Text(
-              '登録済みの方',
-              style: AppTextStyle.body2(AppColor.black),
-            ),
-            const Spacer(),
-          ],
-        ),
-      ),
-    );
-  }
-}
diff --git a/lib/feature/premium/premium_sheet.dart b/lib/feature/premium/premium_sheet.dart
deleted file mode 100644
index 860f21d..0000000
--- a/lib/feature/premium/premium_sheet.dart
+++ /dev/null
@@ -1,97 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:hooks_riverpod/hooks_riverpod.dart';
-import 'package:nererun/components/gradient_scaffold.dart';
-import 'package:nererun/components/nererun_app_bar.dart';
-import 'package:nererun/components/scaffold_indicator.dart';
-import 'package:nererun/feature/premium/components/premium_purchase.dart';
-import 'package:nererun/feature/premium/components/premium_purchase_button.dart';
-import 'package:nererun/feature/premium/premium_sheet_state_notifier.dart';
-import 'package:nererun/feature/premium/premium_state.codegen.dart';
-import 'package:nererun/resource/color.dart';
-import 'package:nererun/resource/text_style.dart';
-import 'package:nererun/util/assets.dart';
-
-class PremiumSheet extends HookConsumerWidget {
-  const PremiumSheet({Key? key}) : super(key: key);
-
-  @override
-  Widget build(BuildContext context, WidgetRef ref) {
-    final store = ref.watch(premiumSheetStateNotifierProvider.notifier);
-    final state = ref.watch(premiumSheetStateNotifierProvider);
-
-    return state.when(
-      data: (state) => _PremiumSheet(state: state, store: store),
-      error: (error, _) => Container(),
-      loading: () => const ScaffoldIndicator(),
-    );
-  }
-}
-
-class _PremiumSheet extends StatelessWidget {
-  final PremiumState state;
-  final PremiumSheetStateNotifier store;
-
-  const _PremiumSheet({
-    Key? key,
-    required this.state,
-    required this.store,
-  }) : super(key: key);
-
-  @override
-  Widget build(BuildContext context) {
-    return GradientScaffold(
-      appBar: NererunAppBar(),
-      body: SingleChildScrollView(
-        child: Column(
-          children: [
-            PremiumPurchase(
-              purchase: (_) => store.asyncAction.purchase(),
-              restore: (_) async {
-                final snackbar = await store.asyncAction.restore();
-                if (snackbar) {
-                  ScaffoldMessenger.of(context).showSnackBar(
-                    const SnackBar(
-                      duration: Duration(seconds: 2),
-                      content: Text("購入情報を復元しました"),
-                    ),
-                  );
-                }
-              },
-            ),
-            Image.asset(Assets.png('premium_nererun_function')),
-            const SizedBox(height: 40),
-            Padding(
-              padding: const EdgeInsets.symmetric(horizontal: 16),
-              child: PremiumPurchaseButton(
-                onTap: (_) => store.asyncAction.purchase(),
-              ),
-            ),
-            const SizedBox(height: 40),
-            Padding(
-              padding: const EdgeInsets.symmetric(horizontal: 16),
-              child: Image.asset(Assets.png('premium_short_blurb')),
-            ),
-            const SizedBox(height: 40),
-            Image.asset(Assets.png('premium_picture_book_diff')),
-            const SizedBox(height: 40),
-            Padding(
-              padding: const EdgeInsets.symmetric(horizontal: 16),
-              child: PremiumPurchaseButton(
-                onTap: (_) => store.asyncAction.purchase(),
-              ),
-            ),
-            const SizedBox(height: 40),
-            Padding(
-              padding: const EdgeInsets.symmetric(horizontal: 16),
-              child: Text(
-                '無料トライアルは初めて登録される方が対象です。無料トライアル終了後は、通常価格の960円/月に自動で更新されます。購入後のお支払いはApple IDアカウントに請求されます。更新日時の24時間前までに解約しない限り、登録が自動更新されます。AppStoreの設定から解約することができます。自動更新後の料金(960円)は、更新日時前の24時間以内に請求されます。',
-                style: AppTextStyle.body4(AppColor.gray2),
-              ),
-            ),
-            const SizedBox(height: 80),
-          ],
-        ),
-      ),
-    );
-  }
-}
diff --git a/lib/feature/premium/premium_sheet_async_action.dart b/lib/feature/premium/premium_sheet_async_action.dart
deleted file mode 100644
index 1428c8a..0000000
--- a/lib/feature/premium/premium_sheet_async_action.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-import 'package:nererun/service/purchase.dart';
-import 'package:riverpod/riverpod.dart';
-
-final premiumSheetAsyncActionProvider = Provider(
-  (ref) => PremiumSheetAsyncAction(),
-);
-
-class PremiumSheetAsyncAction {
-  Future<void> purchase() async {}
-
-  Future<bool> restore() async => callRestorePurchaseInfo();
-}
diff --git a/lib/feature/premium/premium_sheet_state_notifier.dart b/lib/feature/premium/premium_sheet_state_notifier.dart
deleted file mode 100644
index 4d91080..0000000
--- a/lib/feature/premium/premium_sheet_state_notifier.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-import 'package:nererun/feature/premium/premium_sheet_async_action.dart';
-import 'package:nererun/feature/premium/premium_state.codegen.dart';
-import 'package:riverpod/riverpod.dart';
-
-final premiumSheetStateNotifierProvider =
-    StateNotifierProvider<PremiumSheetStateNotifier, AsyncValue<PremiumState>>(
-  (ref) => PremiumSheetStateNotifier(
-    asyncAction: ref.watch(premiumSheetAsyncActionProvider),
-    initialState: ref.watch(premiumSheetStateProvider),
-  ),
-);
-
-class PremiumSheetStateNotifier
-    extends StateNotifier<AsyncValue<PremiumState>> {
-  final PremiumSheetAsyncAction asyncAction;
-
-  PremiumSheetStateNotifier({
-    required this.asyncAction,
-    required AsyncValue<PremiumState> initialState,
-  }) : super(initialState);
-}
diff --git a/lib/feature/premium/premium_state.codegen.dart b/lib/feature/premium/premium_state.codegen.dart
deleted file mode 100644
index 893fc17..0000000
--- a/lib/feature/premium/premium_state.codegen.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-import 'package:freezed_annotation/freezed_annotation.dart';
-import 'package:nererun/entity/user.dart';
-import 'package:nererun/provider/user.dart';
-import 'package:riverpod/riverpod.dart';
-
-part 'premium_state.codegen.freezed.dart';
-
-@freezed
-class PremiumState with _$PremiumState {
-  factory PremiumState({
-    required User user,
-  }) = _PremiumState;
-  PremiumState._();
-}
-
-final premiumSheetStateProvider = Provider<AsyncValue<PremiumState>>((ref) {
-  final user = ref.watch(userStreamProvider).value;
-
-  if (user == null) {
-    return const AsyncLoading();
-  }
-
-  try {
-    return AsyncValue.data(PremiumState(
-      user: user,
-    ));
-  } catch (error, stackTrace) {
-    return AsyncValue.error(error, stackTrace);
-  }
-});
diff --git a/lib/feature/premium/premium_state.codegen.freezed.dart b/lib/feature/premium/premium_state.codegen.freezed.dart
deleted file mode 100644
index 9caae56..0000000
--- a/lib/feature/premium/premium_state.codegen.freezed.dart
+++ /dev/null
@@ -1,142 +0,0 @@
-// coverage:ignore-file
-// GENERATED CODE - DO NOT MODIFY BY HAND
-// ignore_for_file: type=lint
-// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target
-
-part of 'premium_state.codegen.dart';
-
-// **************************************************************************
-// FreezedGenerator
-// **************************************************************************
-
-T _$identity<T>(T value) => value;
-
-final _privateConstructorUsedError = UnsupportedError(
-    'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more information: https://github.com/rrousselGit/freezed#custom-getters-and-methods');
-
-/// @nodoc
-mixin _$PremiumState {
-  User get user => throw _privateConstructorUsedError;
-
-  @JsonKey(ignore: true)
-  $PremiumStateCopyWith<PremiumState> get copyWith =>
-      throw _privateConstructorUsedError;
-}
-
-/// @nodoc
-abstract class $PremiumStateCopyWith<$Res> {
-  factory $PremiumStateCopyWith(
-          PremiumState value, $Res Function(PremiumState) then) =
-      _$PremiumStateCopyWithImpl<$Res>;
-  $Res call({User user});
-
-  $UserCopyWith<$Res> get user;
-}
-
-/// @nodoc
-class _$PremiumStateCopyWithImpl<$Res> implements $PremiumStateCopyWith<$Res> {
-  _$PremiumStateCopyWithImpl(this._value, this._then);
-
-  final PremiumState _value;
-  // ignore: unused_field
-  final $Res Function(PremiumState) _then;
-
-  @override
-  $Res call({
-    Object? user = freezed,
-  }) {
-    return _then(_value.copyWith(
-      user: user == freezed
-          ? _value.user
-          : user // ignore: cast_nullable_to_non_nullable
-              as User,
-    ));
-  }
-
-  @override
-  $UserCopyWith<$Res> get user {
-    return $UserCopyWith<$Res>(_value.user, (value) {
-      return _then(_value.copyWith(user: value));
-    });
-  }
-}
-
-/// @nodoc
-abstract class _$$_PremiumStateCopyWith<$Res>
-    implements $PremiumStateCopyWith<$Res> {
-  factory _$$_PremiumStateCopyWith(
-          _$_PremiumState value, $Res Function(_$_PremiumState) then) =
-      __$$_PremiumStateCopyWithImpl<$Res>;
-  @override
-  $Res call({User user});
-
-  @override
-  $UserCopyWith<$Res> get user;
-}
-
-/// @nodoc
-class __$$_PremiumStateCopyWithImpl<$Res>
-    extends _$PremiumStateCopyWithImpl<$Res>
-    implements _$$_PremiumStateCopyWith<$Res> {
-  __$$_PremiumStateCopyWithImpl(
-      _$_PremiumState _value, $Res Function(_$_PremiumState) _then)
-      : super(_value, (v) => _then(v as _$_PremiumState));
-
-  @override
-  _$_PremiumState get _value => super._value as _$_PremiumState;
-
-  @override
-  $Res call({
-    Object? user = freezed,
-  }) {
-    return _then(_$_PremiumState(
-      user: user == freezed
-          ? _value.user
-          : user // ignore: cast_nullable_to_non_nullable
-              as User,
-    ));
-  }
-}
-
-/// @nodoc
-
-class _$_PremiumState extends _PremiumState {
-  _$_PremiumState({required this.user}) : super._();
-
-  @override
-  final User user;
-
-  @override
-  String toString() {
-    return 'PremiumState(user: $user)';
-  }
-
-  @override
-  bool operator ==(dynamic other) {
-    return identical(this, other) ||
-        (other.runtimeType == runtimeType &&
-            other is _$_PremiumState &&
-            const DeepCollectionEquality().equals(other.user, user));
-  }
-
-  @override
-  int get hashCode =>
-      Object.hash(runtimeType, const DeepCollectionEquality().hash(user));
-
-  @JsonKey(ignore: true)
-  @override
-  _$$_PremiumStateCopyWith<_$_PremiumState> get copyWith =>
-      __$$_PremiumStateCopyWithImpl<_$_PremiumState>(this, _$identity);
-}
-
-abstract class _PremiumState extends PremiumState {
-  factory _PremiumState({required final User user}) = _$_PremiumState;
-  _PremiumState._() : super._();
-
-  @override
-  User get user;
-  @override
-  @JsonKey(ignore: true)
-  _$$_PremiumStateCopyWith<_$_PremiumState> get copyWith =>
-      throw _privateConstructorUsedError;
-}
diff --git a/lib/feature/routes.dart b/lib/feature/routes.dart
index 02bf6a5..43ceb15 100644
--- a/lib/feature/routes.dart
+++ b/lib/feature/routes.dart
@@ -1,7 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:nererun/entity/product.dart';
 import 'package:nererun/feature/off_timer/off_timer_page.dart';
-import 'package:nererun/feature/premium/premium_sheet.dart';
 import 'package:nererun/feature/product/product_page.dart';
 import 'package:nererun/feature/about/about.dart';
 
@@ -13,14 +12,6 @@ class Routes {
     );
   }
 
-  static premiumRoute() {
-    return MaterialPageRoute(
-      fullscreenDialog: true,
-      settings: const RouteSettings(name: 'PremiumSheet'),
-      builder: (_) => const PremiumSheet(),
-    );
-  }
-
   static productRoute(Product product) {
     return MaterialPageRoute(
       settings: const RouteSettings(name: 'ProductPage'),
diff --git a/lib/service/purchase.dart b/lib/service/purchase.dart
deleted file mode 100644
index bd2bcaa..0000000
--- a/lib/service/purchase.dart
+++ /dev/null
@@ -1,76 +0,0 @@
-import 'package:firebase_auth/firebase_auth.dart';
-import 'package:flutter/services.dart';
-import 'package:nererun/database/database.dart';
-import 'package:nererun/datastore/user.dart';
-import 'package:purchases_flutter/purchases_flutter.dart';
-
-const premiumEntitlements = "Premium";
-
-Future<void> initialzePurchase(String uid) async {
-  await Purchases.setDebugLogsEnabled(true);
-  await Purchases.setup('apiKey', appUserId: uid);
-  Purchases.addPurchaserInfoUpdateListener(_callUpdatePurchaseInfo);
-
-  await _syncPurchaseInfo();
-}
-
-Future<bool> callRestorePurchaseInfo() async {
-  try {
-    final info = await Purchases.restoreTransactions();
-    final entitlements = info.entitlements.all[premiumEntitlements];
-
-    if (entitlements != null && entitlements.isActive) {
-      await _callUpdatePurchaseInfo(info);
-      return Future.value(true);
-    }
-    throw Exception('以前の購入情報が見つかりません。アカウントをお確かめの上再度お試しください');
-  } on PlatformException catch (exception, stack) {
-    print(exception);
-    print(stack);
-    rethrow;
-  } catch (exception, stack) {
-    print(exception);
-    print(stack);
-    rethrow;
-  }
-}
-
-Future<void> _callUpdatePurchaseInfo(PurchaserInfo info) async {
-  final uid = FirebaseAuth.instance.currentUser?.uid;
-  if (uid == null) return;
-
-  final userDatastore = UserDatastore(DatabaseConnection(uid));
-  final premiumEntitlement = info.entitlements.all[premiumEntitlements];
-  try {
-    await userDatastore.updatePurchaseInfo(
-      isActivated: premiumEntitlement?.isActive,
-      entitlementIdentifier: premiumEntitlement?.identifier,
-      premiumPlanIdentifier: premiumEntitlement?.productIdentifier,
-      purchaseAppID: info.originalAppUserId,
-      activeSubscriptions: info.activeSubscriptions,
-      originalPurchaseDate: info.originalPurchaseDate,
-    );
-  } catch (exception, stack) {
-    print(exception);
-    print(stack);
-  }
-}
-
-Future<void> _syncPurchaseInfo() async {
-  final uid = FirebaseAuth.instance.currentUser?.uid;
-  if (uid == null) return;
-
-  final purchaseInfo = await Purchases.getPurchaserInfo();
-  final premiumEntitlement = purchaseInfo.entitlements.all[premiumEntitlements];
-  final isActivated =
-      premiumEntitlement == null ? false : premiumEntitlement.isActive;
-
-  try {
-    final userDatastore = UserDatastore(DatabaseConnection(uid));
-    await userDatastore.syncPurchaseInfo(isActivated: isActivated);
-  } catch (exception, stack) {
-    print(exception);
-    print(stack);
-    return;
-  }
-}
diff --git a/pubspec.yaml b/pubspec.yaml
index 4c31962..2e428ee 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -4,7 +4,7 @@ publish_to: 'none'
 version: 2022.12.2+24
 
 environment:
-  sdk: ">=2.12.0 <3.0.0"
+  sdk: ">=2.15.0 <3.0.0"
 
 dependencies:
   flutter: