diff --git a/Controller/Admin/ConfigController.php b/Controller/Admin/ConfigController.php
index f3f65cc..c8730dc 100755
--- a/Controller/Admin/ConfigController.php
+++ b/Controller/Admin/ConfigController.php
@@ -11,10 +11,10 @@
  * file that was distributed with this source code.
  */
 
-namespace Plugin\ProductReview4\Controller\Admin;
+namespace Plugin\ProductReview42\Controller\Admin;
 
-use Plugin\ProductReview4\Form\Type\Admin\ProductReviewConfigType;
-use Plugin\ProductReview4\Repository\ProductReviewConfigRepository;
+use Plugin\ProductReview42\Form\Type\Admin\ProductReviewConfigType;
+use Plugin\ProductReview42\Repository\ProductReviewConfigRepository;
 use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
 use Sensio\Bundle\FrameworkExtraBundle\Configuration\Template;
 use Symfony\Component\HttpFoundation\Request;
@@ -25,8 +25,8 @@
 class ConfigController extends \Eccube\Controller\AbstractController
 {
     /**
-     * @Route("/%eccube_admin_route%/product_review/config", name="product_review4_admin_config")
-     * @Template("@ProductReview4/admin/config.twig")
+     * @Route("/%eccube_admin_route%/product_review/config", name="product_review42_admin_config")
+     * @Template("@ProductReview42/admin/config.twig")
      *
      * @param Request $request
      * @param ProductReviewConfigRepository $configRepository
@@ -47,7 +47,7 @@ public function index(Request $request, ProductReviewConfigRepository $configRep
             log_info('Product review config', ['status' => 'Success']);
             $this->addSuccess('product_review.admin.save.complete', 'admin');
 
-            return $this->redirectToRoute('product_review4_admin_config');
+            return $this->redirectToRoute('product_review42_admin_config');
         }
 
         return [
diff --git a/Controller/Admin/ProductReviewController.php b/Controller/Admin/ProductReviewController.php
index 6e17bce..88bcd63 100755
--- a/Controller/Admin/ProductReviewController.php
+++ b/Controller/Admin/ProductReviewController.php
@@ -11,19 +11,19 @@
  * file that was distributed with this source code.
  */
 
-namespace Plugin\ProductReview4\Controller\Admin;
+namespace Plugin\ProductReview42\Controller\Admin;
 
 use Eccube\Controller\AbstractController;
 use Eccube\Repository\Master\PageMaxRepository;
 use Eccube\Service\CsvExportService;
 use Eccube\Util\FormUtil;
 use Knp\Component\Pager\PaginatorInterface;
-use Plugin\ProductReview4\Entity\ProductReview;
-use Plugin\ProductReview4\Entity\ProductReviewConfig;
-use Plugin\ProductReview4\Form\Type\Admin\ProductReviewSearchType;
-use Plugin\ProductReview4\Form\Type\Admin\ProductReviewType;
-use Plugin\ProductReview4\Repository\ProductReviewConfigRepository;
-use Plugin\ProductReview4\Repository\ProductReviewRepository;
+use Plugin\ProductReview42\Entity\ProductReview;
+use Plugin\ProductReview42\Entity\ProductReviewConfig;
+use Plugin\ProductReview42\Form\Type\Admin\ProductReviewSearchType;
+use Plugin\ProductReview42\Form\Type\Admin\ProductReviewType;
+use Plugin\ProductReview42\Repository\ProductReviewConfigRepository;
+use Plugin\ProductReview42\Repository\ProductReviewRepository;
 use Sensio\Bundle\FrameworkExtraBundle\Configuration\Method;
 use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
 use Sensio\Bundle\FrameworkExtraBundle\Configuration\Template;
@@ -79,7 +79,7 @@ public function __construct(
      *
      * @Route("/%eccube_admin_route%/product_review/", name="product_review_admin_product_review")
      * @Route("/%eccube_admin_route%/product_review/page/{page_no}", requirements={"page_no" = "\d+"}, name="product_review_admin_product_review_page")
-     * @Template("@ProductReview4/admin/index.twig")
+     * @Template("@ProductReview42/admin/index.twig")
      *
      * @param Request $request
      * @param null $page_no
@@ -169,7 +169,7 @@ public function index(Request $request, $page_no = null, PaginatorInterface $pag
      * 編集.
      *
      * @Route("%eccube_admin_route%/product_review/{id}/edit", name="product_review_admin_product_review_edit")
-     * @Template("@ProductReview4/admin/edit.twig")
+     * @Template("@ProductReview42/admin/edit.twig")
      *
      * @param Request $request
      * @param $id
diff --git a/Controller/ProductReviewController.php b/Controller/ProductReviewController.php
index 8106c99..582b193 100755
--- a/Controller/ProductReviewController.php
+++ b/Controller/ProductReviewController.php
@@ -11,16 +11,16 @@
  * file that was distributed with this source code.
  */
 
-namespace Plugin\ProductReview4\Controller;
+namespace Plugin\ProductReview42\Controller;
 
 use Eccube\Controller\AbstractController;
 use Eccube\Entity\Master\ProductStatus;
 use Eccube\Entity\Product;
-use Plugin\ProductReview4\Entity\ProductReview;
-use Plugin\ProductReview4\Entity\ProductReviewStatus;
-use Plugin\ProductReview4\Form\Type\ProductReviewType;
-use Plugin\ProductReview4\Repository\ProductReviewRepository;
-use Plugin\ProductReview4\Repository\ProductReviewStatusRepository;
+use Plugin\ProductReview42\Entity\ProductReview;
+use Plugin\ProductReview42\Entity\ProductReviewStatus;
+use Plugin\ProductReview42\Form\Type\ProductReviewType;
+use Plugin\ProductReview42\Repository\ProductReviewRepository;
+use Plugin\ProductReview42\Repository\ProductReviewStatusRepository;
 use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
 use Sensio\Bundle\FrameworkExtraBundle\Configuration\Template;
 use Symfony\Component\HttpFoundation\RedirectResponse;
@@ -86,7 +86,7 @@ public function index(Request $request, Product $Product)
                 case 'confirm':
                     log_info('Product review config confirm');
 
-                    return $this->render('ProductReview4/Resource/template/default/confirm.twig', [
+                    return $this->render('ProductReview42/Resource/template/default/confirm.twig', [
                         'form' => $form->createView(),
                         'Product' => $Product,
                         'ProductReview' => $ProductReview,
@@ -119,7 +119,7 @@ public function index(Request $request, Product $Product)
             }
         }
 
-        return $this->render('ProductReview4/Resource/template/default/index.twig', [
+        return $this->render('ProductReview42/Resource/template/default/index.twig', [
             'Product' => $Product,
             'ProductReview' => $ProductReview,
             'form' => $form->createView(),
@@ -130,7 +130,7 @@ public function index(Request $request, Product $Product)
      * Complete.
      *
      * @Route("/product_review/{id}/complete", name="product_review_complete", requirements={"id" = "\d+"})
-     * @Template("ProductReview4/Resource/template/default/complete.twig")
+     * @Template("ProductReview42/Resource/template/default/complete.twig")
      *
      * @param $id
      *
diff --git a/Entity/ProductReview.php b/Entity/ProductReview.php
index 35c34d2..c5be11a 100755
--- a/Entity/ProductReview.php
+++ b/Entity/ProductReview.php
@@ -11,7 +11,7 @@
  * file that was distributed with this source code.
  */
 
-namespace Plugin\ProductReview4\Entity;
+namespace Plugin\ProductReview42\Entity;
 
 use Doctrine\ORM\Mapping as ORM;
 use Eccube\Entity\AbstractEntity;
@@ -23,7 +23,7 @@
  * ProductReview
  *
  * @ORM\Table(name="plg_product_review")
- * @ORM\Entity(repositoryClass="Plugin\ProductReview4\Repository\ProductReviewRepository")
+ * @ORM\Entity(repositoryClass="Plugin\ProductReview42\Repository\ProductReviewRepository")
  */
 class ProductReview extends AbstractEntity
 {
@@ -116,9 +116,9 @@ class ProductReview extends AbstractEntity
     private $update_date;
 
     /**
-     * @var \Plugin\ProductReview4\Entity\ProductReviewStatus
+     * @var \Plugin\ProductReview42\Entity\ProductReviewStatus
      *
-     * @ORM\ManyToOne(targetEntity="Plugin\ProductReview4\Entity\ProductReviewStatus")
+     * @ORM\ManyToOne(targetEntity="Plugin\ProductReview42\Entity\ProductReviewStatus")
      * @ORM\JoinColumns({
      *   @ORM\JoinColumn(name="status_id", referencedColumnName="id")
      * })
@@ -328,7 +328,7 @@ public function getCustomer()
     }
 
     /**
-     * @return \Plugin\ProductReview4\Entity\ProductReviewStatus
+     * @return \Plugin\ProductReview42\Entity\ProductReviewStatus
      */
     public function getStatus()
     {
@@ -336,9 +336,9 @@ public function getStatus()
     }
 
     /**
-     * @param \Plugin\ProductReview4\Entity\ProductReviewStatus $status
+     * @param \Plugin\ProductReview42\Entity\ProductReviewStatus $status
      */
-    public function setStatus(\Plugin\ProductReview4\Entity\ProductReviewStatus $Status)
+    public function setStatus(\Plugin\ProductReview42\Entity\ProductReviewStatus $Status)
     {
         $this->Status = $Status;
     }
diff --git a/Entity/ProductReviewConfig.php b/Entity/ProductReviewConfig.php
index d4deaed..248936c 100755
--- a/Entity/ProductReviewConfig.php
+++ b/Entity/ProductReviewConfig.php
@@ -11,7 +11,7 @@
  * file that was distributed with this source code.
  */
 
-namespace Plugin\ProductReview4\Entity;
+namespace Plugin\ProductReview42\Entity;
 
 use Doctrine\ORM\Mapping as ORM;
 use Eccube\Entity\AbstractEntity;
@@ -21,7 +21,7 @@
  * ProductReviewConfig
  *
  * @ORM\Table(name="plg_product_review_config")
- * @ORM\Entity(repositoryClass="Plugin\ProductReview4\Repository\ProductReviewConfigRepository")
+ * @ORM\Entity(repositoryClass="Plugin\ProductReview42\Repository\ProductReviewConfigRepository")
  */
 class ProductReviewConfig extends AbstractEntity
 {
diff --git a/Entity/ProductReviewStatus.php b/Entity/ProductReviewStatus.php
index f48bb3b..fcb6613 100755
--- a/Entity/ProductReviewStatus.php
+++ b/Entity/ProductReviewStatus.php
@@ -11,7 +11,7 @@
  * file that was distributed with this source code.
  */
 
-namespace Plugin\ProductReview4\Entity;
+namespace Plugin\ProductReview42\Entity;
 
 use Doctrine\ORM\Mapping as ORM;
 use Eccube\Entity\Master\AbstractMasterEntity;
@@ -20,7 +20,7 @@
  * ProductReviewStatus
  *
  * @ORM\Table(name="plg_product_review_status")
- * @ORM\Entity(repositoryClass="Plugin\ProductReview4\Repository\ProductReviewStatusRepository")
+ * @ORM\Entity(repositoryClass="Plugin\ProductReview42\Repository\ProductReviewStatusRepository")
  */
 class ProductReviewStatus extends AbstractMasterEntity
 {
diff --git a/Form/Type/Admin/ProductReviewConfigType.php b/Form/Type/Admin/ProductReviewConfigType.php
index 1f25c09..3418752 100755
--- a/Form/Type/Admin/ProductReviewConfigType.php
+++ b/Form/Type/Admin/ProductReviewConfigType.php
@@ -11,10 +11,10 @@
  * file that was distributed with this source code.
  */
 
-namespace Plugin\ProductReview4\Form\Type\Admin;
+namespace Plugin\ProductReview42\Form\Type\Admin;
 
 use Eccube\Common\EccubeConfig;
-use Plugin\ProductReview4\Entity\ProductReviewConfig;
+use Plugin\ProductReview42\Entity\ProductReviewConfig;
 use Symfony\Component\Form\AbstractType;
 use Symfony\Component\Form\Extension\Core\Type\IntegerType;
 use Symfony\Component\Form\FormBuilderInterface;
diff --git a/Form/Type/Admin/ProductReviewSearchType.php b/Form/Type/Admin/ProductReviewSearchType.php
index 5e0f046..dcae6a8 100755
--- a/Form/Type/Admin/ProductReviewSearchType.php
+++ b/Form/Type/Admin/ProductReviewSearchType.php
@@ -11,11 +11,11 @@
  * file that was distributed with this source code.
  */
 
-namespace Plugin\ProductReview4\Form\Type\Admin;
+namespace Plugin\ProductReview42\Form\Type\Admin;
 
 use Eccube\Common\EccubeConfig;
 use Eccube\Form\Type\Master\SexType;
-use Plugin\ProductReview4\Entity\ProductReviewStatus;
+use Plugin\ProductReview42\Entity\ProductReviewStatus;
 use Symfony\Bridge\Doctrine\Form\Type\EntityType;
 use Symfony\Component\Form\AbstractType;
 use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
diff --git a/Form/Type/Admin/ProductReviewType.php b/Form/Type/Admin/ProductReviewType.php
index 4d4b856..b1e0152 100755
--- a/Form/Type/Admin/ProductReviewType.php
+++ b/Form/Type/Admin/ProductReviewType.php
@@ -11,11 +11,11 @@
  * file that was distributed with this source code.
  */
 
-namespace Plugin\ProductReview4\Form\Type\Admin;
+namespace Plugin\ProductReview42\Form\Type\Admin;
 
 use Eccube\Common\EccubeConfig;
 use Eccube\Form\Type\Master\SexType;
-use Plugin\ProductReview4\Entity\ProductReviewStatus;
+use Plugin\ProductReview42\Entity\ProductReviewStatus;
 use Symfony\Bridge\Doctrine\Form\Type\EntityType;
 use Symfony\Component\Form\AbstractType;
 use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
diff --git a/Form/Type/ProductReviewType.php b/Form/Type/ProductReviewType.php
index 6fd9d34..898d2dd 100755
--- a/Form/Type/ProductReviewType.php
+++ b/Form/Type/ProductReviewType.php
@@ -11,7 +11,7 @@
  * file that was distributed with this source code.
  */
 
-namespace Plugin\ProductReview4\Form\Type;
+namespace Plugin\ProductReview42\Form\Type;
 
 use Eccube\Common\EccubeConfig;
 use Eccube\Form\Type\Master\SexType;
diff --git a/PluginManager.php b/PluginManager.php
index d2040a9..be845ca 100644
--- a/PluginManager.php
+++ b/PluginManager.php
@@ -11,7 +11,7 @@
  * file that was distributed with this source code.
  */
 
-namespace Plugin\ProductReview4;
+namespace Plugin\ProductReview42;
 
 use Doctrine\ORM\EntityManagerInterface;
 use Eccube\Common\EccubeConfig;
@@ -22,8 +22,8 @@
 use Eccube\Entity\PageLayout;
 use Eccube\Plugin\AbstractPluginManager;
 use Eccube\Repository\PageRepository;
-use Plugin\ProductReview4\Entity\ProductReviewConfig;
-use Plugin\ProductReview4\Entity\ProductReviewStatus;
+use Plugin\ProductReview42\Entity\ProductReviewConfig;
+use Plugin\ProductReview42\Entity\ProductReviewStatus;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\Filesystem\Filesystem;
 
@@ -33,22 +33,22 @@ class PluginManager extends AbstractPluginManager
         [
             'name' => 'レビューを表示',
             'url' => 'product_review_display',
-            'filename' => 'ProductReview4/Resource/template/default/review',
+            'filename' => 'ProductReview42/Resource/template/default/review',
         ],
         [
             'name' => 'レビューを投稿',
             'url' => 'product_review_index',
-            'filename' => 'ProductReview4/Resource/template/default/index',
+            'filename' => 'ProductReview42/Resource/template/default/index',
         ],
         [
             'name' => 'レビューを投稿(確認)',
             'url' => 'product_review_confirm',
-            'filename' => 'ProductReview4/Resource/template/default/confirm',
+            'filename' => 'ProductReview42/Resource/template/default/confirm',
         ],
         [
             'name' => 'レビューを投稿(完了)',
             'url' => 'product_review_complete',
-            'filename' => 'ProductReview4/Resource/template/default/complete',
+            'filename' => 'ProductReview42/Resource/template/default/complete',
         ],
     ];
 
@@ -205,7 +205,7 @@ protected function createPage(EntityManagerInterface $em, $name, $url, $filename
     protected function copyTwigFiles(ContainerInterface $container)
     {
         $templatePath = $container->getParameter('eccube_theme_front_dir')
-            .'/ProductReview4/Resource/template/default';
+            .'/ProductReview42/Resource/template/default';
         $fs = new Filesystem();
         if ($fs->exists($templatePath)) {
             return;
@@ -219,7 +219,7 @@ protected function createCsvData(EntityManagerInterface $em, CsvType $CsvType)
         $rank = 1;
         $Csv = new Csv();
         $Csv->setCsvType($CsvType)
-            ->setEntityName('Plugin\ProductReview4\Entity\ProductReview')
+            ->setEntityName('Plugin\ProductReview42\Entity\ProductReview')
             ->setFieldName('Product')
             ->setReferenceFieldName('name')
             ->setDispName('商品名')
@@ -230,7 +230,7 @@ protected function createCsvData(EntityManagerInterface $em, CsvType $CsvType)
         $Csv = new Csv();
         ++$rank;
         $Csv->setCsvType($CsvType)
-            ->setEntityName('Plugin\ProductReview4\Entity\ProductReview')
+            ->setEntityName('Plugin\ProductReview42\Entity\ProductReview')
             ->setFieldName('Status')
             ->setReferenceFieldName('name')
             ->setDispName('公開・非公開')
@@ -241,7 +241,7 @@ protected function createCsvData(EntityManagerInterface $em, CsvType $CsvType)
         $Csv = new Csv();
         ++$rank;
         $Csv->setCsvType($CsvType)
-            ->setEntityName('Plugin\ProductReview4\Entity\ProductReview')
+            ->setEntityName('Plugin\ProductReview42\Entity\ProductReview')
             ->setFieldName('create_date')
             ->setReferenceFieldName('create_date')
             ->setDispName('投稿日')
@@ -252,7 +252,7 @@ protected function createCsvData(EntityManagerInterface $em, CsvType $CsvType)
         $Csv = new Csv();
         ++$rank;
         $Csv->setCsvType($CsvType)
-            ->setEntityName('Plugin\ProductReview4\Entity\ProductReview')
+            ->setEntityName('Plugin\ProductReview42\Entity\ProductReview')
             ->setFieldName('reviewer_name')
             ->setReferenceFieldName('reviewer_name')
             ->setDispName('投稿者名')
@@ -263,7 +263,7 @@ protected function createCsvData(EntityManagerInterface $em, CsvType $CsvType)
         $Csv = new Csv();
         ++$rank;
         $Csv->setCsvType($CsvType)
-            ->setEntityName('Plugin\ProductReview4\Entity\ProductReview')
+            ->setEntityName('Plugin\ProductReview42\Entity\ProductReview')
             ->setFieldName('reviewer_url')
             ->setReferenceFieldName('reviewer_url')
             ->setDispName('投稿者URL')
@@ -274,7 +274,7 @@ protected function createCsvData(EntityManagerInterface $em, CsvType $CsvType)
         $Csv = new Csv();
         ++$rank;
         $Csv->setCsvType($CsvType)
-            ->setEntityName('Plugin\ProductReview4\Entity\ProductReview')
+            ->setEntityName('Plugin\ProductReview42\Entity\ProductReview')
             ->setFieldName('Sex')
             ->setReferenceFieldName('name')
             ->setDispName('性別')
@@ -285,7 +285,7 @@ protected function createCsvData(EntityManagerInterface $em, CsvType $CsvType)
         $Csv = new Csv();
         ++$rank;
         $Csv->setCsvType($CsvType)
-            ->setEntityName('Plugin\ProductReview4\Entity\ProductReview')
+            ->setEntityName('Plugin\ProductReview42\Entity\ProductReview')
             ->setFieldName('recommend_level')
             ->setReferenceFieldName('recommend_level')
             ->setDispName('おすすめレベル')
@@ -296,7 +296,7 @@ protected function createCsvData(EntityManagerInterface $em, CsvType $CsvType)
         $Csv = new Csv();
         ++$rank;
         $Csv->setCsvType($CsvType)
-            ->setEntityName('Plugin\ProductReview4\Entity\ProductReview')
+            ->setEntityName('Plugin\ProductReview42\Entity\ProductReview')
             ->setFieldName('title')
             ->setReferenceFieldName('title')
             ->setDispName('タイトル')
@@ -307,7 +307,7 @@ protected function createCsvData(EntityManagerInterface $em, CsvType $CsvType)
         $Csv = new Csv();
         ++$rank;
         $Csv->setCsvType($CsvType)
-            ->setEntityName('Plugin\ProductReview4\Entity\ProductReview')
+            ->setEntityName('Plugin\ProductReview42\Entity\ProductReview')
             ->setFieldName('comment')
             ->setReferenceFieldName('comment')
             ->setDispName('コメント')
@@ -337,7 +337,7 @@ protected function removePage(EntityManagerInterface $em, $url)
     protected function removeTwigFiles(ContainerInterface $container)
     {
         $templatePath = $container->getParameter('eccube_theme_front_dir')
-            .'/ProductReview4';
+            .'/ProductReview42';
         $fs = new Filesystem();
         $fs->remove($templatePath);
     }
diff --git a/ProductReviewEvent.php b/ProductReviewEvent.php
index cae140c..1902c1f 100644
--- a/ProductReviewEvent.php
+++ b/ProductReviewEvent.php
@@ -11,14 +11,14 @@
  * file that was distributed with this source code.
  */
 
-namespace Plugin\ProductReview4;
+namespace Plugin\ProductReview42;
 
 use Eccube\Entity\Product;
 use Eccube\Event\TemplateEvent;
 use Eccube\Repository\Master\ProductStatusRepository;
-use Plugin\ProductReview4\Entity\ProductReviewStatus;
-use Plugin\ProductReview4\Repository\ProductReviewConfigRepository;
-use Plugin\ProductReview4\Repository\ProductReviewRepository;
+use Plugin\ProductReview42\Entity\ProductReviewStatus;
+use Plugin\ProductReview42\Repository\ProductReviewConfigRepository;
+use Plugin\ProductReview42\Repository\ProductReviewRepository;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 
 class ProductReviewEvent implements EventSubscriberInterface
@@ -70,7 +70,7 @@ public static function getSubscribedEvents()
      */
     public function detail(TemplateEvent $event)
     {
-        $event->addSnippet('ProductReview4/Resource/template/default/review.twig');
+        $event->addSnippet('ProductReview42/Resource/template/default/review.twig');
 
         $Config = $this->productReviewConfigRepository->get();
 
diff --git a/ProductReviewNav.php b/ProductReviewNav.php
index 640b888..6dd8ae7 100644
--- a/ProductReviewNav.php
+++ b/ProductReviewNav.php
@@ -11,7 +11,7 @@
  * file that was distributed with this source code.
  */
 
-namespace Plugin\ProductReview4;
+namespace Plugin\ProductReview42;
 
 use Eccube\Common\EccubeNav;
 
diff --git a/Repository/ProductReviewConfigRepository.php b/Repository/ProductReviewConfigRepository.php
index fc349cd..31cb9a6 100755
--- a/Repository/ProductReviewConfigRepository.php
+++ b/Repository/ProductReviewConfigRepository.php
@@ -11,11 +11,11 @@
  * file that was distributed with this source code.
  */
 
-namespace Plugin\ProductReview4\Repository;
+namespace Plugin\ProductReview42\Repository;
 
 use Eccube\Repository\AbstractRepository;
-use Plugin\ProductReview4\Entity\ProductReviewConfig;
-use Symfony\Bridge\Doctrine\RegistryInterface;
+use Plugin\ProductReview42\Entity\ProductReviewConfig;
+use Doctrine\Persistence\ManagerRegistry; 
 
 /**
  * ProductReview Config.
@@ -28,9 +28,9 @@ class ProductReviewConfigRepository extends AbstractRepository
     /**
      * ProductReviewConfigRepository constructor.
      *
-     * @param RegistryInterface $registry
+     * @param ManagerRegistry $registry
      */
-    public function __construct(RegistryInterface $registry)
+    public function __construct(ManagerRegistry $registry)
     {
         parent::__construct($registry, ProductReviewConfig::class);
     }
diff --git a/Repository/ProductReviewRepository.php b/Repository/ProductReviewRepository.php
index f178b1a..12ac4ae 100755
--- a/Repository/ProductReviewRepository.php
+++ b/Repository/ProductReviewRepository.php
@@ -11,14 +11,14 @@
  * file that was distributed with this source code.
  */
 
-namespace Plugin\ProductReview4\Repository;
+namespace Plugin\ProductReview42\Repository;
 
 use Doctrine\ORM\QueryBuilder;
 use Eccube\Entity\Product;
 use Eccube\Repository\AbstractRepository;
 use Eccube\Util\StringUtil;
-use Plugin\ProductReview4\Entity\ProductReview;
-use Symfony\Bridge\Doctrine\RegistryInterface;
+use Plugin\ProductReview42\Entity\ProductReview;
+use Doctrine\Persistence\ManagerRegistry; 
 
 /**
  * ProductReview.
@@ -31,9 +31,9 @@ class ProductReviewRepository extends AbstractRepository
     /**
      * ProductReviewRepository constructor.
      *
-     * @param RegistryInterface $registry
+     * @param ManagerRegistry $registry
      */
-    public function __construct(RegistryInterface $registry)
+    public function __construct(ManagerRegistry $registry)
     {
         parent::__construct($registry, ProductReview::class);
     }
diff --git a/Repository/ProductReviewStatusRepository.php b/Repository/ProductReviewStatusRepository.php
index 0f53651..ef9b598 100755
--- a/Repository/ProductReviewStatusRepository.php
+++ b/Repository/ProductReviewStatusRepository.php
@@ -11,11 +11,11 @@
  * file that was distributed with this source code.
  */
 
-namespace Plugin\ProductReview4\Repository;
+namespace Plugin\ProductReview42\Repository;
 
 use Eccube\Repository\AbstractRepository;
-use Plugin\ProductReview4\Entity\ProductReviewStatus;
-use Symfony\Bridge\Doctrine\RegistryInterface;
+use Plugin\ProductReview42\Entity\ProductReviewStatus;
+use Doctrine\Persistence\ManagerRegistry; 
 
 /**
  * ProductReview Status.
@@ -28,9 +28,9 @@ class ProductReviewStatusRepository extends AbstractRepository
     /**
      * ProductReviewStatusRepository constructor.
      *
-     * @param RegistryInterface $registry
+     * @param ManagerRegistry $registry
      */
-    public function __construct(RegistryInterface $registry)
+    public function __construct(ManagerRegistry $registry)
     {
         parent::__construct($registry, ProductReviewStatus::class);
     }
diff --git a/Resource/template/admin/config.twig b/Resource/template/admin/config.twig
index 3b01a13..59f9e6a 100755
--- a/Resource/template/admin/config.twig
+++ b/Resource/template/admin/config.twig
@@ -23,7 +23,7 @@
 
 {% block main %}
 
-    <form method="post" action="{{ url('product_review4_admin_config') }}">
+    <form method="post" action="{{ url('product_review42_admin_config') }}">
         {{ form_widget(form._token) }}
         <div class="c-contentsArea__cols">
             <div class="c-contentsArea__primaryCol">
diff --git a/Resource/template/default/confirm.twig b/Resource/template/default/confirm.twig
index 12abb7d..3292caf 100755
--- a/Resource/template/default/confirm.twig
+++ b/Resource/template/default/confirm.twig
@@ -79,7 +79,7 @@ file that was distributed with this source code.
                             </dt>
                             <dd>
                                 <div class="ec-radio{{ has_errors(form.recommend_level) ? ' error' }}">
-                                    {% for child in form.recommend_level.children if child.vars.checked %}
+                                    {% for child in form.recommend_level.children|filter(child => child.vars.checked) %}
                                         {{ child.vars.label }}
                                     {% endfor %}
                                     {{ form_widget(form.recommend_level, { type: 'hidden' }) }}
diff --git a/Tests/Web/ProductReviewConfigControllerTest.php b/Tests/Web/ProductReviewConfigControllerTest.php
index c8be788..024fe7b 100755
--- a/Tests/Web/ProductReviewConfigControllerTest.php
+++ b/Tests/Web/ProductReviewConfigControllerTest.php
@@ -11,7 +11,7 @@
  * file that was distributed with this source code.
  */
 
-namespace Plugin\ProductReview4\Tests\Web;
+namespace Plugin\ProductReview42\Tests\Web;
 
 use Eccube\Tests\Web\Admin\AbstractAdminWebTestCase;
 use Faker\Generator;
@@ -31,7 +31,7 @@ class ProductReviewConfigControllerTest extends AbstractAdminWebTestCase
     /**
      * Setup method.
      */
-    public function setUp()
+    public function setUp(): void
     {
         parent::setUp();
         $this->faker = $this->getFaker();
@@ -49,7 +49,7 @@ public function testRouting()
         /**
          * @var Crawler
          */
-        $crawler = $this->client->request('GET', $this->generateUrl('product_review4_admin_config'));
+        $crawler = $this->client->request('GET', $this->generateUrl('product_review42_admin_config'));
 
         $this->assertTrue($client->getResponse()->isSuccessful());
 
@@ -71,7 +71,7 @@ public function testMin()
         /**
          * @var Crawler
          */
-        $crawler = $this->client->request('GET', $this->generateUrl('product_review4_admin_config'));
+        $crawler = $this->client->request('GET', $this->generateUrl('product_review42_admin_config'));
 
         $this->assertTrue($client->getResponse()->isSuccessful());
 
@@ -96,7 +96,7 @@ public function testMax()
         /**
          * @var Crawler
          */
-        $crawler = $this->client->request('GET', $this->generateUrl('product_review4_admin_config'));
+        $crawler = $this->client->request('GET', $this->generateUrl('product_review42_admin_config'));
 
         $this->assertTrue($client->getResponse()->isSuccessful());
 
@@ -122,7 +122,7 @@ public function testSuccess()
         /**
          * @var Crawler
          */
-        $crawler = $this->client->request('GET', $this->generateUrl('product_review4_admin_config'));
+        $crawler = $this->client->request('GET', $this->generateUrl('product_review42_admin_config'));
 
         $this->assertTrue($client->getResponse()->isSuccessful());
 
@@ -131,7 +131,7 @@ public function testSuccess()
         $form['product_review_config[review_max]'] = $this->faker->numberBetween($min, $max);
         $crawler = $client->submit($form);
 
-        $this->assertTrue($client->getResponse()->isRedirection($this->generateUrl('product_review4_admin_config')));
+        $this->assertTrue($client->getResponse()->isRedirection($this->generateUrl('product_review42_admin_config')));
 
         $crawler = $client->followRedirect();
         $this->assertContains('登録しました。', $crawler->html());
diff --git a/Tests/Web/ReviewAdminControllerTest.php b/Tests/Web/ReviewAdminControllerTest.php
index 42897ee..5664e8d 100755
--- a/Tests/Web/ReviewAdminControllerTest.php
+++ b/Tests/Web/ReviewAdminControllerTest.php
@@ -11,7 +11,7 @@
  * file that was distributed with this source code.
  */
 
-namespace Plugin\ProductReview4\Tests\Web;
+namespace Plugin\ProductReview42\Tests\Web;
 
 use Eccube\Entity\Master\Sex;
 use Eccube\Entity\Product;
@@ -20,9 +20,9 @@
 use Eccube\Repository\ProductRepository;
 use Eccube\Tests\Web\Admin\AbstractAdminWebTestCase;
 use Faker\Generator;
-use Plugin\ProductReview4\Entity\ProductReview;
-use Plugin\ProductReview4\Entity\ProductReviewStatus;
-use Plugin\ProductReview4\Repository\ProductReviewRepository;
+use Plugin\ProductReview42\Entity\ProductReview;
+use Plugin\ProductReview42\Entity\ProductReviewStatus;
+use Plugin\ProductReview42\Repository\ProductReviewRepository;
 use Symfony\Component\DomCrawler\Crawler;
 use Symfony\Component\HttpFoundation\Response;
 
@@ -55,7 +55,7 @@ class ReviewAdminControllerTest extends AbstractAdminWebTestCase
     /**
      * Setup method.
      */
-    public function setUp()
+    public function setUp():void
     {
         parent::setUp();
         $this->faker = $this->getFaker();
diff --git a/Tests/Web/ReviewControllerTest.php b/Tests/Web/ReviewControllerTest.php
index 54f392f..11f0e25 100755
--- a/Tests/Web/ReviewControllerTest.php
+++ b/Tests/Web/ReviewControllerTest.php
@@ -11,7 +11,7 @@
  * file that was distributed with this source code.
  */
 
-namespace Plugin\ProductReview4\Tests\Web;
+namespace Plugin\ProductReview42\Tests\Web;
 
 use Eccube\Entity\Master\Sex;
 use Eccube\Entity\Product;
@@ -20,8 +20,8 @@
 use Eccube\Repository\ProductRepository;
 use Eccube\Tests\Web\AbstractWebTestCase;
 use Faker\Generator;
-use Plugin\ProductReview4\Entity\ProductReview;
-use Plugin\ProductReview4\Entity\ProductReviewStatus;
+use Plugin\ProductReview42\Entity\ProductReview;
+use Plugin\ProductReview42\Entity\ProductReviewStatus;
 use Symfony\Component\DomCrawler\Crawler;
 use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
 
@@ -54,7 +54,7 @@ class ReviewControllerTest extends AbstractWebTestCase
     /**
      * Setup method.
      */
-    public function setUp()
+    public function setUp(): void
     {
         parent::setUp();
         $this->faker = $this->getFaker();
diff --git a/composer.json b/composer.json
index 6b59fd3..ed139aa 100644
--- a/composer.json
+++ b/composer.json
@@ -1,12 +1,12 @@
 {
-    "name": "ec-cube/productreview4",
-    "version": "4.1.0",
+    "name": "ec-cube/productreview42",
+    "version": "4.2.0",
     "description": "商品レビュー管理プラグイン",
     "type": "eccube-plugin",
     "require": {
-        "ec-cube/plugin-installer": "~0.0.6 || ^2.0"
+        "ec-cube/plugin-installer": "^2.0"
     },
     "extra": {
-        "code": "ProductReview4"
+        "code": "ProductReview42"
     }
 }