diff --git a/app/Filament/Resources/MemberGroups/MemberGroupResource.php b/app/Filament/Resources/MemberGroups/MemberGroupResource.php
index 6ed3a83..e33280c 100644
--- a/app/Filament/Resources/MemberGroups/MemberGroupResource.php
+++ b/app/Filament/Resources/MemberGroups/MemberGroupResource.php
@@ -5,6 +5,8 @@ namespace App\Filament\Resources\MemberGroups;
 use App\Filament\Resources\MemberGroups\Pages\CreateMemberGroup;
 use App\Filament\Resources\MemberGroups\Pages\EditMemberGroup;
 use App\Filament\Resources\MemberGroups\Pages\ListMemberGroups;
+use App\Filament\Resources\MemberGroups\RelationManagers\MemberRelationManager;
+use App\Filament\Resources\MemberGroups\RelationManagers\MembersRelationManager;
 use App\Filament\Resources\MemberGroups\Schemas\MemberGroupForm;
 use App\Filament\Resources\MemberGroups\Tables\MemberGroupsTable;
 use App\Models\MemberGroup;
@@ -35,7 +37,7 @@ class MemberGroupResource extends Resource
     public static function getRelations(): array
     {
         return [
-            //
+            MembersRelationManager::class,
         ];
     }
 
diff --git a/app/Filament/Resources/MemberGroups/RelationManagers/MembersRelationManager.php b/app/Filament/Resources/MemberGroups/RelationManagers/MembersRelationManager.php
new file mode 100644
index 0000000..efa48e9
--- /dev/null
+++ b/app/Filament/Resources/MemberGroups/RelationManagers/MembersRelationManager.php
@@ -0,0 +1,76 @@
+<?php
+
+namespace App\Filament\Resources\MemberGroups\RelationManagers;
+
+use App\Models\Member;
+use Filament\Actions\AssociateAction;
+use Filament\Actions\BulkActionGroup;
+use Filament\Actions\CreateAction;
+use Filament\Actions\DeleteAction;
+use Filament\Actions\DeleteBulkAction;
+use Filament\Actions\DissociateAction;
+use Filament\Actions\DissociateBulkAction;
+use Filament\Actions\EditAction;
+use Filament\Resources\RelationManagers\RelationManager;
+use Filament\Schemas\Schema;
+use Filament\Tables\Columns\TextColumn;
+use Filament\Tables\Table;
+
+class MembersRelationManager extends RelationManager
+{
+    protected static string $relationship = 'members';
+
+    protected static ?string $title = 'Adhérents du groupe';
+
+    public function form(Schema $schema): Schema
+    {
+        return $schema
+            ->components([
+                //
+            ]);
+    }
+
+    public function table(Table $table): Table
+    {
+        return $table
+            ->recordTitleAttribute('name')
+            ->columns([
+                TextColumn::make('lastname')
+                    ->label(Member::getAttributeLabel('lastname'))
+                    ->searchable(),
+                TextColumn::make('firstname')
+                    ->label(Member::getAttributeLabel('firstname'))
+                    ->searchable(),
+                TextColumn::make('status')
+                    ->label(Member::getAttributeLabel('status'))
+                    ->formatStateUsing(fn (string $state) => Member::getAttributeLabel($state))
+                    ->badge()
+                    ->color(fn (string $state): string => match ($state) {
+                        'draft' => 'gray',
+                        'pending' => 'warning',
+                        'valid' => 'success',
+                        'cancelled' => 'danger',
+                        'excluded' => 'black',
+                    }),
+
+            ])
+            ->filters([
+                //
+            ])
+            ->headerActions([
+                CreateAction::make(),
+                AssociateAction::make(),
+            ])
+            ->recordActions([
+                EditAction::make(),
+                DissociateAction::make(),
+                DeleteAction::make(),
+            ])
+            ->toolbarActions([
+                BulkActionGroup::make([
+                    DissociateBulkAction::make(),
+                    DeleteBulkAction::make(),
+                ]),
+            ]);
+    }
+}
diff --git a/app/Filament/Resources/Memberships/Schemas/MembershipForm.php b/app/Filament/Resources/Memberships/Schemas/MembershipForm.php
index bc589b5..e19d2ee 100644
--- a/app/Filament/Resources/Memberships/Schemas/MembershipForm.php
+++ b/app/Filament/Resources/Memberships/Schemas/MembershipForm.php
@@ -50,6 +50,7 @@ class MembershipForm
                                             ->label(Membership::getAttributeLabel('package_id'))
                                             ->placeholder(Membership::getAttributeLabel('select_package'))
                                             ->relationship('package', 'name')
+                                            ->required()
                                             ->default(null),
                                         Select::make('payment_status')
                                             ->label(Membership::getAttributeLabel('payment_status'))
diff --git a/app/Models/MemberGroup.php b/app/Models/MemberGroup.php
index c0523dd..4431189 100644
--- a/app/Models/MemberGroup.php
+++ b/app/Models/MemberGroup.php
@@ -20,6 +20,6 @@ class MemberGroup extends Model
 
     public function members(): HasMany
     {
-        return $this->hasMany(Member::class);
+        return $this->hasMany(Member::class, 'group_id');
     }
 }
diff --git a/app/Models/Membership.php b/app/Models/Membership.php
index bc580af..a502d64 100644
--- a/app/Models/Membership.php
+++ b/app/Models/Membership.php
@@ -37,9 +37,9 @@ class Membership extends Model
         return $this->belongsTo(User::class, 'admin_id');
     }
 
-    public function package(): HasOne
+    public function package(): BelongsTo
     {
-        return $this->hasOne(Package::class);
+        return $this->belongsTo(Package::class);
     }
 
     public function services(): BelongsToMany
diff --git a/app/Models/Package.php b/app/Models/Package.php
index 252b0e7..27504e5 100644
--- a/app/Models/Package.php
+++ b/app/Models/Package.php
@@ -19,8 +19,4 @@ class Package extends Model
         return __('packages.fields.' . $attribute);
     }
 
-    public function memberships(): HasMany
-    {
-        return $this->hasMany(Membership::class);
-    }
 }