diff --git a/lib/model/category.dart b/lib/model/category.dart
index 1cf623d..ad58c63 100644
--- a/lib/model/category.dart
+++ b/lib/model/category.dart
@@ -19,6 +19,16 @@ class NewCategory {
     required this.female,
   });
 
+  @override
+  bool operator ==(Object other) =>
+      identical(this, other) ||
+          other is NewCategory &&
+              runtimeType == other.runtimeType &&
+              id == other.id;
+
+  @override
+  int get hashCode => id.hashCode;
+
   factory NewCategory.fromJson(Map<String, dynamic> json) {
     return NewCategory(
       id: json['id'] ?? 0,
diff --git a/lib/model/team.dart b/lib/model/team.dart
index 2785f2e..53024a4 100644
--- a/lib/model/team.dart
+++ b/lib/model/team.dart
@@ -1,5 +1,6 @@
 // lib/models/team.dart
 
+import 'dart:convert';
 import 'category.dart';
 import 'user.dart';
 
@@ -10,6 +11,7 @@ class Team {
   final NewCategory category;
   final User owner;
 
+
   Team({
     required this.id,
     required this.zekkenNumber,
diff --git a/lib/pages/team/member_controller.dart b/lib/pages/team/member_controller.dart
index fea2b2d..ef252c5 100644
--- a/lib/pages/team/member_controller.dart
+++ b/lib/pages/team/member_controller.dart
@@ -7,18 +7,23 @@ import 'package:rogapp/services/api_service.dart';
 class MemberController extends GetxController {
   late final ApiService _apiService;
 
+  final selectedMember = Rx<User?>(null);
   final int teamId = 0;
   final member = Rx<User?>(null);
   final email = ''.obs;
   final firstname = ''.obs;
   final lastname = ''.obs;
   final dateOfBirth = Rx<DateTime?>(null);
+  final isLoading = true.obs;  // isLoadingプロパティを追加
+
 
   @override
   void onInit() async{
     super.onInit();
     await Get.putAsync(() => ApiService().init());
     _apiService = Get.find<ApiService>();
+    await loadInitialData();
+
     if (Get.arguments != null && Get.arguments['member'] != null) {
       member.value = Get.arguments['member'];
       _initializeMemberData();
@@ -35,6 +40,46 @@ class MemberController extends GetxController {
     }
   }
 
+  Future<void> loadInitialData() async {
+    try {
+      isLoading.value = true;
+      // 必要な初期データの取得をここで行う
+      // 例: await fetchTeamMembers();
+    } catch (e) {
+      print('Error loading initial data: $e');
+    } finally {
+      isLoading.value = false;
+    }
+  }
+
+
+  void setSelectedMember(User member) {
+    selectedMember.value = member;
+    firstname.value = member.firstname;
+    lastname.value = member.lastname;
+  }
+
+  void updateFirstName(String value) {
+    firstname.value = value;
+  }
+
+  void updateLastName(String value) {
+    lastname.value = value;
+  }
+
+  Future<void> saveMember() async {
+    try {
+      isLoading.value = true;
+      // メンバー保存のロジックをここに実装
+      // 例: await _apiService.updateMember(selectedMember.value!.id, firstName.value, lastName.value);
+    } catch (e) {
+      print('Error saving member: $e');
+      // エラーハンドリング（例：ユーザーへの通知）
+    } finally {
+      isLoading.value = false;
+    }
+  }
+
   Future<void> createMember(int teamId) async {
     try {
       final newMember = await _apiService.createTeamMember(
diff --git a/lib/pages/team/member_detail_page.dart b/lib/pages/team/member_detail_page.dart
index 0d0b9e9..df303b7 100644
--- a/lib/pages/team/member_detail_page.dart
+++ b/lib/pages/team/member_detail_page.dart
@@ -5,16 +5,51 @@ import 'package:get/get.dart';
 import 'package:rogapp/pages/team/member_controller.dart';
 
 class MemberDetailPage extends GetView<MemberController> {
+  final TextEditingController _firstNameController = TextEditingController();
+  final TextEditingController _lastNameController = TextEditingController();
+
   @override
   Widget build(BuildContext context) {
     final mode = Get.arguments['mode'];
     final member = Get.arguments['member'];
 
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (mode == 'edit' && member != null) {
+        controller.setSelectedMember(member);
+      }
+    });
+
     return Scaffold(
       appBar: AppBar(
         title: Text(mode == 'new' ? 'メンバー追加' : 'メンバー詳細'),
+        actions: [
+          IconButton(
+            icon: Icon(Icons.save),
+            onPressed: () async {
+              await controller.saveMember();
+              Get.back();
+            },
+          ),
+        ],
       ),
-      body: Padding(
+      body: Obx(()
+    {
+      if (controller.isLoading.value) {
+        return Center(child: CircularProgressIndicator());
+      }
+
+      _firstNameController.value = _firstNameController.value.copyWith(
+        text: controller.firstname.value,
+        selection: TextSelection.collapsed(
+            offset: controller.firstname.value.length),
+      );
+      _lastNameController.value = _lastNameController.value.copyWith(
+        text: controller.lastname.value,
+        selection: TextSelection.collapsed(
+            offset: controller.lastname.value.length),
+      );
+
+      return Padding(
         padding: EdgeInsets.all(16.0),
         child: Column(
           crossAxisAlignment: CrossAxisAlignment.start,
@@ -28,12 +63,15 @@ class MemberDetailPage extends GetView<MemberController> {
               ),
             TextField(
               decoration: InputDecoration(labelText: '姓'),
-              onChanged: (value) => controller.updateLastname(value),
+              controller: _lastNameController,
+              onChanged: (value) => controller.updateLastName(value),
             ),
             TextField(
               decoration: InputDecoration(labelText: '名'),
-              onChanged: (value) => controller.updateFirstname(value),
+              controller: _firstNameController,
+              onChanged: (value) => controller.updateFirstName(value),
             ),
+
             // 誕生日選択ウィジェットを追加
             if (mode == 'edit')
               Text('ステータス: ${controller.getMemberStatus()}'),
@@ -49,7 +87,8 @@ class MemberDetailPage extends GetView<MemberController> {
               ),
           ],
         ),
-      ),
+      );
+    })
     );
   }
 }
\ No newline at end of file
diff --git a/lib/pages/team/team_controller.dart b/lib/pages/team/team_controller.dart
index 094f48e..528b9a5 100644
--- a/lib/pages/team/team_controller.dart
+++ b/lib/pages/team/team_controller.dart
@@ -1,5 +1,5 @@
 // lib/controllers/team_controller.dart
-
+import 'dart:convert';
 import 'package:get/get.dart';
 import 'package:rogapp/model/team.dart';
 import 'package:rogapp/model/category.dart';
@@ -9,44 +9,78 @@ import 'package:rogapp/services/api_service.dart';
 class TeamController extends GetxController {
   late final ApiService _apiService;
 
-
   final teams = <Team>[].obs;
   final categories = <NewCategory>[].obs;
   final teamMembers = <User>[].obs;
 
+
   final selectedCategory = Rx<NewCategory?>(null);
+  final selectedTeam = Rx<Team?>(null);
   final currentUser = Rx<User?>(null);
 
-  final isLoading = true.obs;
+  final teamName = ''.obs;
+  final isLoading = false.obs;
   final error = RxString('');
 
   @override
   void onInit() async{
     super.onInit();
     try {
-      //await Get.putAsync(() => ApiService().init());
       _apiService = Get.find<ApiService>();
 
-      await Future.wait([
+    await fetchCategories();
+    await Future.wait([
         fetchTeams(),
-        fetchCategories(),
         getCurrentUser(),
       ]);
 
+      print("selectedCategory=$selectedCategory.value");
+      // カテゴリが取得できたら、最初のカテゴリを選択状態にする
+      if (categories.isNotEmpty && selectedCategory.value == null) {
+        selectedCategory.value = categories.first;
+      }
+
     }catch(e){
       print("Team Controller error: $e");
+      error.value = e.toString();
     }finally{
       isLoading.value = false;
     }
 
   }
 
+  void setSelectedTeam(Team team) {
+    selectedTeam.value = team;
+    teamName.value = team.teamName;
+    if (categories.isNotEmpty) {
+      selectedCategory.value = categories.firstWhere(
+            (category) => category.id == team.category.id,
+        orElse: () => categories.first,
+      );
+    } else {
+      // カテゴリリストが空の場合、teamのカテゴリをそのまま使用
+      selectedCategory.value = team.category;
+    }
+    fetchTeamMembers(team.id);
+  }
+
+  void resetForm() {
+    selectedTeam.value = null;
+    teamName.value = '';
+    selectedCategory.value = categories.isNotEmpty ? categories.first : null;
+    teamMembers.clear();
+  }
+
   Future<void> fetchTeams() async {
     try {
+      isLoading.value = true;
       final fetchedTeams = await _apiService.getTeams();
       teams.assignAll(fetchedTeams);
     } catch (e) {
+      error.value = 'チームの取得に失敗しました: $e';
       print('Error fetching teams: $e');
+    } finally {
+      isLoading.value = false;
     }
   }
 
@@ -54,6 +88,8 @@ class TeamController extends GetxController {
     try {
       final fetchedCategories = await _apiService.getCategories();
       categories.assignAll(fetchedCategories);
+      print("Fetched categories: ${categories.length}");  // デバッグ用
+
     } catch (e) {
       print('Error fetching categories: $e');
     }
@@ -68,25 +104,15 @@ class TeamController extends GetxController {
     }
   }
 
-  Future<void> createTeam(String teamName, int categoryId) async {
-    try {
-      final newTeam = await _apiService.createTeam(teamName, categoryId);
-      teams.add(newTeam);
-    } catch (e) {
-      print('Error creating team: $e');
-    }
+  Future<Team> createTeam(String teamName, int categoryId) async {
+    final newTeam = await _apiService.createTeam(teamName, categoryId);
+    return newTeam;
   }
 
-  Future<void> updateTeam(int teamId, String teamName, int categoryId) async {
-    try {
-      final updatedTeam = await _apiService.updateTeam(teamId, teamName, categoryId);
-      final index = teams.indexWhere((team) => team.id == teamId);
-      if (index != -1) {
-        teams[index] = updatedTeam;
-      }
-    } catch (e) {
-      print('Error updating team: $e');
-    }
+  Future<Team> updateTeam(int teamId, String teamName, int categoryId) async {
+    // APIサービスを使用してチームを更新
+    final updatedTeam = await _apiService.updateTeam(teamId, teamName, categoryId);
+    return updatedTeam;
   }
 
   Future<void> deleteTeam(int teamId) async {
@@ -108,10 +134,56 @@ class TeamController extends GetxController {
   }
 
   void updateTeamName(String value) {
-    // Update local state
+    teamName.value = value;
   }
 
   void updateCategory(NewCategory? value) {
-    selectedCategory.value = value;
+    if (value != null) {
+      selectedCategory.value = categories.firstWhere(
+            (category) => category.id == value.id,
+        orElse: () => value,
+      );
+    }
   }
+
+  Future<void> saveTeam() async {
+    try {
+      isLoading.value = true;
+      if (selectedCategory.value == null) {
+        throw Exception('カテゴリを選択してください');
+      }
+
+      if (selectedTeam.value == null) {
+        await createTeam(teamName.value, selectedCategory.value!.id);
+      } else {
+        await updateTeam(selectedTeam.value!.id, teamName.value, selectedCategory.value!.id);
+      }
+
+      // サーバーから最新のデータを再取得
+      await fetchTeams();
+
+      // 選択中のチームを更新
+      if (selectedTeam.value != null) {
+        selectedTeam.value = teams.firstWhere((t) => t.id == selectedTeam.value!.id);
+        teamName.value = selectedTeam.value!.teamName;
+        selectedCategory.value = selectedTeam.value!.category;
+      }
+
+      update();  // UIを強制的に更新
+    } catch (e) {
+      error.value = 'チームの保存に失敗しました: $e';
+      print("Team save error: $e");
+    } finally {
+      isLoading.value = false;
+    }
+  }
+
+
+  Future<void> deleteSelectedTeam() async {
+    if (selectedTeam.value != null) {
+      await deleteTeam(selectedTeam.value!.id);
+      selectedTeam.value = null;
+    }
+  }
+
 }
\ No newline at end of file
diff --git a/lib/pages/team/team_detail_page.dart b/lib/pages/team/team_detail_page.dart
index e9d1af7..f63de66 100644
--- a/lib/pages/team/team_detail_page.dart
+++ b/lib/pages/team/team_detail_page.dart
@@ -4,66 +4,123 @@ import 'package:flutter/material.dart';
 import 'package:get/get.dart';
 import 'package:rogapp/pages/team/team_controller.dart';
 import 'package:rogapp/routes/app_pages.dart';
-import 'package:rogapp/services/api_service.dart';
+import 'package:rogapp/model/team.dart';
+import 'package:rogapp/model/category.dart';
 
 class TeamDetailPage extends GetView<TeamController> {
   @override
   Widget build(BuildContext context) {
-    final mode = Get.arguments['mode'];
-    final team = Get.arguments['team'];
+    final mode = Get.arguments['mode'] as String;
+    final team = Get.arguments['team'] as Team?;
+
+    if (mode == 'edit' && team != null) {
+      controller.setSelectedTeam(team);
+    } else {
+      controller.resetForm();
+    }
 
     return Scaffold(
       appBar: AppBar(
         title: Text(mode == 'new' ? '新規チーム作成' : 'チーム詳細'),
         actions: [
+          IconButton(
+            icon: Icon(Icons.save),
+            onPressed: () async {
+              try {
+                await controller.saveTeam();
+                Get.back();
+              } catch (e) {
+                Get.snackbar('エラー', e.toString(), snackPosition: SnackPosition.BOTTOM);
+              }
+            },
+          ),
           if (mode == 'edit')
             IconButton(
-              icon: Icon(Icons.add),
-              onPressed: () => Get.toNamed(AppPages.MEMBER_DETAIL, arguments: {'mode': 'new', 'teamId': team.id}),
+              icon: Icon(Icons.delete),
+              onPressed: () async {
+                try {
+                  await controller.deleteSelectedTeam();
+                  Get.back();
+                } catch (e) {
+                  Get.snackbar('エラー', e.toString(), snackPosition: SnackPosition.BOTTOM);
+                }
+              },
             ),
         ],
       ),
-      body: Padding(
-        padding: EdgeInsets.all(16.0),
-        child: Column(
-          crossAxisAlignment: CrossAxisAlignment.start,
-          children: [
-            TextField(
-              decoration: InputDecoration(labelText: 'チーム名'),
-              onChanged: (value) => controller.updateTeamName(value),
+      body: GetBuilder<TeamController>(
+        builder: (controller) {
+          if (controller.isLoading.value) {
+            return Center(child: CircularProgressIndicator());
+          }
+
+          return SingleChildScrollView(
+            child: Padding(
+              padding: EdgeInsets.all(16.0),
+              child: Column(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: [
+                  TextFormField(
+                    initialValue: controller.teamName.value,
+                    decoration: InputDecoration(labelText: 'チーム名'),
+                    onChanged: (value) => controller.updateTeamName(value),
+                  ),
+                  SizedBox(height: 16),
+                  DropdownButtonFormField<NewCategory>(
+                    decoration: InputDecoration(labelText: 'カテゴリ'),
+                    value: controller.selectedCategory.value,
+                    items: controller.categories.map((category) => DropdownMenuItem(
+                      value: category,
+                      child: Text(category.categoryName),
+                    )).toList(),
+                    onChanged: (value) => controller.updateCategory(value),
+                  ),
+                  if (mode == 'edit')
+                    Padding(
+                      padding: EdgeInsets.symmetric(vertical: 16),
+                      child: Text('ゼッケン番号: ${controller.selectedTeam.value?.zekkenNumber ?? ""}'),
+                    ),
+                  Padding(
+                    padding: EdgeInsets.symmetric(vertical: 16),
+                    child: Text('所有者: ${controller.currentUser.value?.email ?? "未設定"}'),
+                  ),
+                  SizedBox(height: 24),
+                  Text('メンバーリスト', style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold)),
+                  SizedBox(height: 8),
+                  ListView.builder(
+                    shrinkWrap: true,
+                    physics: NeverScrollableScrollPhysics(),
+                    itemCount: controller.teamMembers.length,
+                    itemBuilder: (context, index) {
+                      final member = controller.teamMembers[index];
+                      return ListTile(
+                        title: Text('${member.lastname}, ${member.firstname}'),
+                        onTap: () => Get.toNamed(
+                          AppPages.MEMBER_DETAIL,
+                          arguments: {'mode': 'edit', 'member': member, 'teamId': controller.selectedTeam.value?.id},
+                        ),
+                      );
+                    },
+                  ),
+                  SizedBox(height: 16),
+                  ElevatedButton(
+                    child: Text('新しいメンバーを追加'),
+                    onPressed: () => Get.toNamed(
+                      AppPages.MEMBER_DETAIL,
+                      arguments: {'mode': 'new', 'teamId': controller.selectedTeam.value?.id},
+                    ),
+                  ),
+                ],
+              ),
             ),
-            DropdownButtonFormField(
-              decoration: InputDecoration(labelText: 'カテゴリ'),
-              value: controller.selectedCategory.value,
-              items: controller.categories.map((category) => DropdownMenuItem(
-                value: category,
-                child: Text(category.categoryName),
-              )).toList(),
-              onChanged: (value) => controller.updateCategory(value),
-            ),
-            if (mode == 'edit')
-              Text('ゼッケン番号: ${team.zekkenNumber}'),
-            Obx(() {
-              final currentUser = controller.currentUser.value;
-              return Text('所有者: ${currentUser?.email ?? "未設定"}');
-            }),
-            SizedBox(height: 20),
-            Text('メンバーリスト', style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold)),
-            Expanded(
-              child: Obx(() => ListView.builder(
-                itemCount: controller.teamMembers.length,
-                itemBuilder: (context, index) {
-                  final member = controller.teamMembers[index];
-                  return ListTile(
-                    title: Text('${member.lastname}, ${member.firstname}'),
-                    onTap: () => Get.toNamed(AppPages.MEMBER_DETAIL, arguments: {'mode': 'edit', 'member': member}),
-                  );
-                },
-              )),
-            ),
-          ],
-        ),
+          );
+        },
       ),
     );
   }
-}
\ No newline at end of file
+}
+
+
+
+
+
diff --git a/lib/pages/team/team_list_page.dart b/lib/pages/team/team_list_page.dart
index 217e885..2f240f7 100644
--- a/lib/pages/team/team_list_page.dart
+++ b/lib/pages/team/team_list_page.dart
@@ -6,7 +6,7 @@ import 'package:rogapp/pages/team/team_controller.dart';
 import 'package:rogapp/routes/app_pages.dart';
 import 'package:rogapp/services/api_service.dart';
 
-class TeamListPage extends GetView<TeamController> {
+class TeamListPage extends GetWidget<TeamController> {
   @override
   Widget build(BuildContext context) {
     return Scaffold(
@@ -19,36 +19,38 @@ class TeamListPage extends GetView<TeamController> {
           ),
         ],
       ),
-      body: FutureBuilder(
-        future: Get.putAsync(() => ApiService().init()),
-        builder: (context, snapshot) {
-          if (snapshot.connectionState == ConnectionState.done) {
-            return Obx(() {
-              if (controller.isLoading.value) {
-                return Center(child: CircularProgressIndicator());
-              } else if (controller.error.value.isNotEmpty) {
-                return Center(child: Text('エラー: ${controller.error.value}'));
-              } else {
-                return ListView.builder(
-                  itemCount: controller.teams.length,
-                  itemBuilder: (context, index) {
-                    final team = controller.teams[index];
-                    return ListTile(
-                      title: Text(team.teamName),
-                      subtitle: Text('${team.category.categoryName} - ${team.zekkenNumber}'),
-                      trailing: Text('メンバー: (メンバー数表示予定)'),
-                      onTap: () => Get.toNamed(AppPages.TEAM_DETAIL, arguments: {'mode': 'edit', 'team': team}),
+      body: Obx(() {
+        if (controller.isLoading.value) {
+          return Center(child: CircularProgressIndicator());
+        } else if (controller.error.value.isNotEmpty) {
+          return Center(child: Text(controller.error.value));
+        } else if (controller.teams.isEmpty) {
+          return Center(child: Text('チームがありません'));
+        } else {
+          return RefreshIndicator(
+            onRefresh: controller.fetchTeams,
+            child: ListView.builder(
+              itemCount: controller.teams.length,
+              itemBuilder: (context, index) {
+                final team = controller.teams[index];
+                return ListTile(
+                  title: Text(team.teamName),
+                  subtitle: Text('${team.category.categoryName} - ${team.zekkenNumber}'),
+                  onTap: () async {
+                    await Get.toNamed(
+                      AppPages.TEAM_DETAIL,
+                      arguments: {'mode': 'edit', 'team': team},
                     );
+                    controller.fetchTeams();
                   },
                 );
-              }
-            });
-
-          } else {
-            return Center(child: CircularProgressIndicator());
-          }
-        },
-      ),
+              },
+            ),
+          );
+        }
+      }),
     );
   }
-}
\ No newline at end of file
+}
+
+
diff --git a/lib/services/api_service.dart b/lib/services/api_service.dart
index 199c0ca..f86bc24 100644
--- a/lib/services/api_service.dart
+++ b/lib/services/api_service.dart
@@ -17,7 +17,7 @@ class ApiService extends GetxService{
   static ApiService get to => Get.find<ApiService>();
   String serverUrl = '';
   String baseUrl = '';
-  String token = 'your-auth-token'; // これが使用されている。
+  String token = 'your-auth-token';
 
   Future<void> init() async {
     try {
@@ -65,7 +65,7 @@ class ApiService extends GetxService{
     try {
       final response = await http.get(
         Uri.parse('$baseUrl/teams/'),
-        headers: {'Authorization': 'Token $token'},
+        headers: {'Authorization': 'Token $token',"Content-Type": "application/json; charset=UTF-8"},
       );
 
       if (response.statusCode == 200) {
@@ -100,7 +100,7 @@ class ApiService extends GetxService{
     try {
       final response = await http.get(
         Uri.parse('$baseUrl/categories/'),
-        headers: {'Authorization': 'Token $token'},
+        headers: {'Authorization': 'Token $token',"Content-Type": "application/json; charset=UTF-8"},
       );
 
       if (response.statusCode == 200) {
@@ -134,7 +134,7 @@ class ApiService extends GetxService{
     try {
       final response = await http.get(
         Uri.parse('$baseUrl/user/'),
-        headers: {'Authorization': 'Token $token'},
+        headers: {'Authorization': 'Token $token',"Content-Type": "application/json; charset=UTF-8"},
       );
 
       if (response.statusCode == 200) {
@@ -223,7 +223,7 @@ class ApiService extends GetxService{
       Uri.parse('$baseUrl/teams/'),
       headers: {
         'Authorization': 'Token $token',
-        'Content-Type': 'application/json',
+        "Content-Type": "application/json; charset=UTF-8",
       },
       body: json.encode({
         'team_name': teamName,
@@ -246,7 +246,7 @@ class ApiService extends GetxService{
       Uri.parse('$baseUrl/teams/$teamId/'),
       headers: {
         'Authorization': 'Token $token',
-        'Content-Type': 'application/json',
+        'Content-Type': 'application/json; charset=UTF-8',
       },
       body: json.encode({
         'team_name': teamName,
@@ -267,7 +267,7 @@ class ApiService extends GetxService{
 
     final response = await http.delete(
       Uri.parse('$baseUrl/teams/$teamId/'),
-      headers: {'Authorization': 'Token $token'},
+      headers: {'Authorization': 'Token $token','Content-Type': 'application/json; charset=UTF-8'},
     );
 
     if (response.statusCode != 204) {
@@ -281,7 +281,7 @@ class ApiService extends GetxService{
 
     final response = await http.get(
       Uri.parse('$baseUrl/teams/$teamId/members/'),
-      headers: {'Authorization': 'Token $token'},
+      headers: {'Authorization': 'Token $token','Content-Type': 'application/json; charset=UTF-8'},
     );
 
     if (response.statusCode == 200) {
@@ -303,7 +303,7 @@ class ApiService extends GetxService{
       Uri.parse('$baseUrl/teams/$teamId/members/'),
       headers: {
         'Authorization': 'Token $token',
-        'Content-Type': 'application/json',
+        'Content-Type': 'application/json; charset=UTF-8',
       },
       body: json.encode({
         'email': email,
@@ -328,7 +328,7 @@ class ApiService extends GetxService{
       Uri.parse('$baseUrl/teams/$teamId/members/$memberId/'),
       headers: {
         'Authorization': 'Token $token',
-        'Content-Type': 'application/json',
+        'Content-Type': 'application/json; charset=UTF-8',
       },
       body: json.encode({
         'firstname': firstname,
@@ -364,7 +364,8 @@ class ApiService extends GetxService{
 
     final response = await http.post(
       Uri.parse('$baseUrl/members/$memberId/resend-invitation/'),
-      headers: {'Authorization': 'Token $token'},
+      headers: {'Authorization': 'Token $token',        'Content-Type': 'application/json; charset=UTF-8',
+      },
     );
 
     if (response.statusCode != 200) {
@@ -378,7 +379,8 @@ class ApiService extends GetxService{
 
     final response = await http.get(
       Uri.parse('$baseUrl/entries/'),
-      headers: {'Authorization': 'Token $token'},
+      headers: {'Authorization': 'Token $token',        'Content-Type': 'application/json; charset=UTF-8',
+      },
     );
 
     if (response.statusCode == 200) {
@@ -394,8 +396,9 @@ class ApiService extends GetxService{
     getToken();
 
     final response = await http.get(
-      Uri.parse('$baseUrl/new-events/'),
-      headers: {'Authorization': 'Token $token'},
+      Uri.parse('$baseUrl/new-events/',),
+      headers: {'Authorization': 'Token $token',        'Content-Type': 'application/json; charset=UTF-8',
+      },
     );
 
     if (response.statusCode == 200) {
@@ -417,7 +420,7 @@ class ApiService extends GetxService{
       Uri.parse('$baseUrl/entry/'),
       headers: {
         'Authorization': 'Token $token',
-        'Content-Type': 'application/json',
+        'Content-Type': 'application/json; charset=UTF-8',
       },
       body: json.encode({
         'team': teamId,
@@ -442,7 +445,7 @@ class ApiService extends GetxService{
       Uri.parse('$baseUrl/entry/$entryId/'),
       headers: {
         'Authorization': 'Token $token',
-        'Content-Type': 'application/json',
+        'Content-Type': 'application/json; charset=UTF-8',
       },
       body: json.encode({
         'event': eventId,