diff --git a/database/migrations/2017_01_01_112200_create_files_table.php b/database/migrations/2017_01_01_112200_create_files_table.php
index 39b1926..93205c5 100644
--- a/database/migrations/2017_01_01_112200_create_files_table.php
+++ b/database/migrations/2017_01_01_112200_create_files_table.php
@@ -11,7 +11,7 @@ public function up()
         Schema::create('files', function (Blueprint $table) {
             $table->id();
 
-            $table->bigInteger('type_id')->unsigned();
+            $table->unsignedBigInteger('type_id');
             $table->foreign('type_id')->references('id')->on('file_types');
 
             $table->nullableMorphs('attachable');
@@ -23,7 +23,7 @@ public function up()
 
             $table->boolean('is_public');
 
-            $table->integer('created_by')->unsigned()->nullable();
+            $table->unsignedInteger('created_by')->nullable();
             $table->foreign('created_by')->references('id')->on('users');
 
             $table->timestamps();
diff --git a/database/migrations/2017_01_01_112400_create_uploads_table.php b/database/migrations/2017_01_01_112400_create_uploads_table.php
index 0063b33..7f4078b 100644
--- a/database/migrations/2017_01_01_112400_create_uploads_table.php
+++ b/database/migrations/2017_01_01_112400_create_uploads_table.php
@@ -11,7 +11,7 @@ public function up()
         Schema::create('uploads', function (Blueprint $table) {
             $table->increments('id');
 
-            $table->bigInteger('file_id')->unsigned()->nullable()->unique();
+            $table->unsignedBigInteger('file_id')->nullable()->unique();
             $table->foreign('file_id')->references('id')->on('files')
                 ->onUpdate('restrict')->onDelete('restrict');
 
diff --git a/database/migrations/2017_01_01_112600_create_favorite_files_table.php b/database/migrations/2017_01_01_112600_create_favorite_files_table.php
index 6395d41..2cd6688 100644
--- a/database/migrations/2017_01_01_112600_create_favorite_files_table.php
+++ b/database/migrations/2017_01_01_112600_create_favorite_files_table.php
@@ -11,10 +11,10 @@ public function up()
         Schema::create('favorite_files', function (Blueprint $table) {
             $table->id();
 
-            $table->integer('user_id')->unsigned()->index();
+            $table->unsignedInteger('user_id')->index();
             $table->foreign('user_id')->references('id')->on('users');
 
-            $table->bigInteger('file_id')->unsigned()->index();
+            $table->unsignedBigInteger('file_id')->index();
             $table->foreign('file_id')->references('id')->on('files')
                 ->onUpdate('restrict')->onDelete('restrict');
 
diff --git a/src/EnumServiceProvider.php b/src/EnumServiceProvider.php
index 10c809f..544ee9d 100644
--- a/src/EnumServiceProvider.php
+++ b/src/EnumServiceProvider.php
@@ -3,11 +3,8 @@
 namespace LaravelEnso\Files;
 
 use LaravelEnso\Enums\EnumServiceProvider as ServiceProvider;
-use LaravelEnso\Files\Enums\TemporaryLinkDuration;
 
 class EnumServiceProvider extends ServiceProvider
 {
-    public $register = [
-        'temporaryLinkDuration' => TemporaryLinkDuration::class,
-    ];
+    public $register = [];
 }
diff --git a/src/Enums/TemporaryLinkDuration.php b/src/Enums/TemporaryLinkDuration.php
index e06395b..0316486 100644
--- a/src/Enums/TemporaryLinkDuration.php
+++ b/src/Enums/TemporaryLinkDuration.php
@@ -2,20 +2,26 @@
 
 namespace LaravelEnso\Files\Enums;
 
-use LaravelEnso\Enums\Services\Enum;
+use LaravelEnso\Enums\Contracts\Frontend;
+use LaravelEnso\Enums\Contracts\Mappable;
 
-class TemporaryLinkDuration extends Enum
+enum TemporaryLinkDuration: int implements Mappable, Frontend
 {
-    public const FiveMinutes = 5 * 60;
-    public const OneHour = 60 * 60;
-    public const OneDay = 60 * 60 * 24;
+    case FiveMinutes = 5 * 60;
+    case OneHour = 60 * 60;
+    case OneDay = 60 * 60 * 24;
 
-    public static function data(): array
+    public function map(): string
     {
-        return [
+        return match ($this) {
             self::FiveMinutes => '5m',
             self::OneHour => '1h',
             self::OneDay => '24h',
-        ];
+        };
+    }
+
+    public static function registerBy(): string
+    {
+        return 'temporaryLinkDuration';
     }
 }
diff --git a/src/Http/Requests/ValidateLink.php b/src/Http/Requests/ValidateLink.php
index d6000f7..0b5075a 100644
--- a/src/Http/Requests/ValidateLink.php
+++ b/src/Http/Requests/ValidateLink.php
@@ -3,6 +3,7 @@
 namespace LaravelEnso\Files\Http\Requests;
 
 use Illuminate\Foundation\Http\FormRequest;
+use Illuminate\Validation\Rule;
 use LaravelEnso\Files\Enums\TemporaryLinkDuration;
 
 class ValidateLink extends FormRequest
@@ -15,7 +16,7 @@ public function authorize()
     public function rules()
     {
         return [
-            'seconds' => 'required|in:'.TemporaryLinkDuration::keys()->implode(','),
+            'seconds' => Rule::enum(TemporaryLinkDuration::class),
         ];
     }
 }