diff --git a/backup_migrate_aws_s3.info.yml b/backup_migrate_aws_s3.info.yml
old mode 100644
new mode 100755
index b8691f4..6e7a21a
--- a/backup_migrate_aws_s3.info.yml
+++ b/backup_migrate_aws_s3.info.yml
@@ -3,6 +3,7 @@ description: 'Backup the Drupal database and files or migrate them to AWS S3.'
 package: Other
 type: module
 core: 8.x
+core_version_requirement: ^8 || ^9
 
 dependencies:
   - drupal:backup_migrate
diff --git a/backup_migrate_aws_s3.module b/backup_migrate_aws_s3.module
index 1ac81d2..7103310 100644
--- a/backup_migrate_aws_s3.module
+++ b/backup_migrate_aws_s3.module
@@ -14,4 +14,4 @@ use Symfony\Component\ClassLoader\Psr4ClassLoader;
 $loader = new Psr4ClassLoader();
 $loader->addPrefix('BackupMigrateAWSS3\\Core\\', __DIR__ . '/lib/backup_migrate_aws_s3_core/src');
 $loader->addPrefix('BackupMigrateAWSS3\\Drupal\\', __DIR__ . '/src');
-$loader->register();
\ No newline at end of file
+$loader->register();
diff --git a/src/Controller/MyentityListBuilder.php b/src/Controller/MyentityListBuilder.php
index 8f7d2a8..9814b7f 100644
--- a/src/Controller/MyentityListBuilder.php
+++ b/src/Controller/MyentityListBuilder.php
@@ -31,4 +31,4 @@ $row['id'] = $entity->id();
 return $row + parent::buildRow($entity);
 }
 
-}
\ No newline at end of file
+}
diff --git a/src/Form/MyEntityForm.php b/src/Form/MyEntityForm.php
index 9221238..9fb9387 100644
--- a/src/Form/MyEntityForm.php
+++ b/src/Form/MyEntityForm.php
@@ -75,4 +75,4 @@ class MyEntityForm extends EntityForm {
 
     $form_state->setRedirect('backup_migrate_aws_s3.myentity.collection');
   }
-}
\ No newline at end of file
+}
diff --git a/src/MyEntityAccessControlHandler.php b/src/MyEntityAccessControlHandler.php
index 226a87c..3e5b6a8 100644
--- a/src/MyEntityAccessControlHandler.php
+++ b/src/MyEntityAccessControlHandler.php
@@ -44,4 +44,4 @@ class MyEntityAccessControlHandler extends EntityAccessControlHandler {
     return AccessResult::allowedIfHasPermission($account, 'add my entity');
   }
 
-}
\ No newline at end of file
+}
diff --git a/src/MyentityInterface.php b/src/MyentityInterface.php
index 9d58052..01958df 100644
--- a/src/MyentityInterface.php
+++ b/src/MyentityInterface.php
@@ -6,4 +6,4 @@ use Drupal\Core\Config\Entity\ConfigEntityInterface;
 
 interface MyentityInterface extends ConfigEntityInterface {
 
-}
\ No newline at end of file
+}