diff --git a/src/database/seeders/RolePermissionSeeder.php b/src/database/seeders/RolePermissionSeeder.php
index 951e70b..b509cbb 100644
--- a/src/database/seeders/RolePermissionSeeder.php
+++ b/src/database/seeders/RolePermissionSeeder.php
@@ -22,21 +22,27 @@ public function run(): void
         ];
 
         foreach ($permissions as $permission) {
-            Permission::create(['name' => $permission]);
+            Permission::firstOrCreate(['name' => $permission]);
         }
 
-        $adminRole = Role::create(['name' => 'admin']);
+        $adminRole = Role::firstOrCreate(['name' => 'admin']);
         $adminRole->givePermissionTo(Permission::all());
 
-        $editorRole = Role::create(['name' => 'editor']);
+        $editorRole = Role::firstOrCreate(['name' => 'editor']);
         $editorRole->givePermissionTo(['users.view', 'users.edit']);
 
-        $viewerRole = Role::create(['name' => 'viewer']);
+        $viewerRole = Role::firstOrCreate(['name' => 'viewer']);
         $viewerRole->givePermissionTo(['users.view']);
 
-        $admin = User::where('email', 'admin@example.com')->first();
-        if ($admin) {
-            $admin->assignRole('admin');
-        }
+        // Create admin user if not exists
+        $admin = User::firstOrCreate(
+            ['email' => 'admin@example.com'],
+            [
+                'name' => 'Admin',
+                'password' => bcrypt('password'),
+                'email_verified_at' => now(),
+            ]
+        );
+        $admin->assignRole('admin');
     }
 }