diff --git a/src/Command/CrudGeneratorCommand.php b/src/Command/CrudGeneratorCommand.php
index 067a2a2..f8b23ce 100644
--- a/src/Command/CrudGeneratorCommand.php
+++ b/src/Command/CrudGeneratorCommand.php
@@ -11,7 +11,7 @@
 
 class CrudGeneratorCommand extends Command
 {
-    const COMMAND_VERSION = '0.8.0';
+    const COMMAND_VERSION = '0.9.0';
 
     public function __construct($app)
     {
@@ -23,7 +23,7 @@ protected function configure()
     {
         $this->setName('api:generate:endpoints')
             ->setDescription('Given an entity, auto-generate a simple CRUD endpoints.')
-            ->setHelp('This command generate a CRUD to manage any simple entity/table, in a RESTful API. Version: ' . self::COMMAND_VERSION)
+            ->setHelp('This command generate a CRUD services to manage any simple entity/table, in a RESTful API. Version: ' . self::COMMAND_VERSION)
             ->addArgument(
                 'entity',
                 InputArgument::REQUIRED,
diff --git a/src/Command/CrudGeneratorService.php b/src/Command/CrudGeneratorService.php
index 318f52b..48830de 100644
--- a/src/Command/CrudGeneratorService.php
+++ b/src/Command/CrudGeneratorService.php
@@ -129,7 +129,7 @@ private function updateRoutes()
     private function updateRepository()
     {
         $repository = '
-$container["'.$this->entity.'_repository"] = function ($container): App\Repository\\'.$this->entityUpper.'Repository {
+$container["'.$this->entity.'_repository"] = static function ($container): App\Repository\\'.$this->entityUpper.'Repository {
     return new App\Repository\\'.$this->entityUpper.'Repository($container["db"]);
 };
 ';
@@ -142,7 +142,7 @@ private function updateRepository()
     private function updateServices()
     {
         $service = '
-$container["'.$this->entity.'_service"] = function ($container): App\Service\\'.$this->entityUpper.'Service {
+$container["'.$this->entity.'_service"] = static function ($container): App\Service\\'.$this->entityUpper.'Service {
     return new App\Service\\'.$this->entityUpper.'Service($container["'.$this->entity.'_repository"]);
 };
 ';
diff --git a/src/Command/TemplateBase/Objectbase/Base.php b/src/Command/TemplateBase/Objectbase/Base.php
index 15e19f0..ebfc16e 100644
--- a/src/Command/TemplateBase/Objectbase/Base.php
+++ b/src/Command/TemplateBase/Objectbase/Base.php
@@ -5,14 +5,15 @@
 namespace App\Controller\Objectbase;
 
 use App\Service\ObjectbaseService;
+use Pimple\Psr11\Container;
 
 abstract class Base
 {
-    protected $container;
+    protected Container $container;
 
-    protected $objectbaseService;
+    protected ObjectbaseService $objectbaseService;
 
-    public function __construct($container)
+    public function __construct(Container $container)
     {
         $this->container = $container;
     }
diff --git a/src/Command/TemplateBase/Objectbase/Create.php b/src/Command/TemplateBase/Objectbase/Create.php
index bb40a3b..81edac7 100644
--- a/src/Command/TemplateBase/Objectbase/Create.php
+++ b/src/Command/TemplateBase/Objectbase/Create.php
@@ -4,9 +4,12 @@
 
 namespace App\Controller\Objectbase;
 
-class Create extends Base
+use Psr\Http\Message\ResponseInterface as Response;
+use Psr\Http\Message\ServerRequestInterface as Request;
+
+final class Create extends Base
 {
-    public function __invoke($request, $response)
+    public function __invoke(Request $request, Response $response): Response
     {
         $input = $request->getParsedBody();
         $objectbase = $this->getObjectbaseService()->create($input);
diff --git a/src/Command/TemplateBase/Objectbase/Delete.php b/src/Command/TemplateBase/Objectbase/Delete.php
index 6c90569..01841b8 100644
--- a/src/Command/TemplateBase/Objectbase/Delete.php
+++ b/src/Command/TemplateBase/Objectbase/Delete.php
@@ -4,9 +4,12 @@
 
 namespace App\Controller\Objectbase;
 
-class Delete extends Base
+use Psr\Http\Message\ResponseInterface as Response;
+use Psr\Http\Message\ServerRequestInterface as Request;
+
+final class Delete extends Base
 {
-    public function __invoke($request, $response, array $args)
+    public function __invoke(Request $request, Response $response, array $args): Response
     {
         $this->getObjectbaseService()->delete((int) $args['id']);
 
diff --git a/src/Command/TemplateBase/Objectbase/GetAll.php b/src/Command/TemplateBase/Objectbase/GetAll.php
index 0af2d75..e2aaf5f 100644
--- a/src/Command/TemplateBase/Objectbase/GetAll.php
+++ b/src/Command/TemplateBase/Objectbase/GetAll.php
@@ -4,9 +4,12 @@
 
 namespace App\Controller\Objectbase;
 
-class GetAll extends Base
+use Psr\Http\Message\ResponseInterface as Response;
+use Psr\Http\Message\ServerRequestInterface as Request;
+
+final class GetAll extends Base
 {
-    public function __invoke($request, $response)
+    public function __invoke(Request $request, Response $response): Response
     {
         $objectbases = $this->getObjectbaseService()->getAll();
 
diff --git a/src/Command/TemplateBase/Objectbase/GetOne.php b/src/Command/TemplateBase/Objectbase/GetOne.php
index 210370b..342a704 100644
--- a/src/Command/TemplateBase/Objectbase/GetOne.php
+++ b/src/Command/TemplateBase/Objectbase/GetOne.php
@@ -4,9 +4,12 @@
 
 namespace App\Controller\Objectbase;
 
-class GetOne extends Base
+use Psr\Http\Message\ResponseInterface as Response;
+use Psr\Http\Message\ServerRequestInterface as Request;
+
+final class GetOne extends Base
 {
-    public function __invoke($request, $response, array $args)
+    public function __invoke(Request $request, Response $response, array $args): Response
     {
         $objectbase = $this->getObjectbaseService()->getOne((int) $args['id']);
 
diff --git a/src/Command/TemplateBase/Objectbase/Update.php b/src/Command/TemplateBase/Objectbase/Update.php
index 6f6c421..a95d233 100644
--- a/src/Command/TemplateBase/Objectbase/Update.php
+++ b/src/Command/TemplateBase/Objectbase/Update.php
@@ -4,9 +4,12 @@
 
 namespace App\Controller\Objectbase;
 
-class Update extends Base
+use Psr\Http\Message\ResponseInterface as Response;
+use Psr\Http\Message\ServerRequestInterface as Request;
+
+final class Update extends Base
 {
-    public function __invoke($request, $response, array $args)
+    public function __invoke(Request $request, Response $response, array $args): Response
     {
         $input = $request->getParsedBody();
         $objectbase = $this->getObjectbaseService()->update($input, (int) $args['id']);
diff --git a/src/Command/TemplateBase/ObjectbaseException.php b/src/Command/TemplateBase/ObjectbaseException.php
index bdc748e..b1697ad 100644
--- a/src/Command/TemplateBase/ObjectbaseException.php
+++ b/src/Command/TemplateBase/ObjectbaseException.php
@@ -4,6 +4,6 @@
 
 namespace App\Exception;
 
-class ObjectbaseException extends BaseException
+final class ObjectbaseException extends BaseException
 {
 }
diff --git a/src/Command/TemplateBase/ObjectbaseRepository.php b/src/Command/TemplateBase/ObjectbaseRepository.php
index ed2d239..f439d3f 100644
--- a/src/Command/TemplateBase/ObjectbaseRepository.php
+++ b/src/Command/TemplateBase/ObjectbaseRepository.php
@@ -6,7 +6,7 @@
 
 use App\Exception\ObjectbaseException;
 
-class ObjectbaseRepository extends BaseRepository
+final class ObjectbaseRepository extends BaseRepository
 {
     public function __construct(\PDO $database)
     {
@@ -36,17 +36,17 @@ public function getAll(): array
         return $statement->fetchAll();
     }
 
-    public function create($objectbase)
+    public function create(object $objectbase)
     {
         #createFunction
     }
 
-    public function update($objectbase, $data)
+    public function update(object $objectbase, object $data)
     {
         #updateFunction
     }
 
-    public function delete(int $objectbaseId)
+    public function delete(int $objectbaseId): void
     {
         $query = 'DELETE FROM `objectbase` WHERE `id` = :id';
         $statement = $this->getDb()->prepare($query);
diff --git a/src/Command/TemplateBase/ObjectbaseService.php b/src/Command/TemplateBase/ObjectbaseService.php
index d0bd35b..e724fe3 100644
--- a/src/Command/TemplateBase/ObjectbaseService.php
+++ b/src/Command/TemplateBase/ObjectbaseService.php
@@ -7,9 +7,9 @@
 use App\Exception\ObjectbaseException;
 use App\Repository\ObjectbaseRepository;
 
-class ObjectbaseService extends BaseService
+final class ObjectbaseService extends BaseService
 {
-    protected $objectbaseRepository;
+    protected ObjectbaseRepository $objectbaseRepository;
 
     public function __construct(ObjectbaseRepository $objectbaseRepository)
     {
@@ -31,7 +31,7 @@ public function getOne(int $objectbaseId)
         return $this->checkAndGet($objectbaseId);
     }
 
-    public function create($input)
+    public function create(array $input)
     {
         $objectbase = json_decode(json_encode($input), false);
 
@@ -46,7 +46,7 @@ public function update(array $input, int $objectbaseId)
         return $this->objectbaseRepository->update($objectbase, $data);
     }
 
-    public function delete(int $objectbaseId)
+    public function delete(int $objectbaseId): void
     {
         $this->checkAndGet($objectbaseId);
         $this->objectbaseRepository->delete($objectbaseId);