diff --git a/appinfo/routes.php b/appinfo/routes.php
index 5bb77484..1e7d0e50 100644
--- a/appinfo/routes.php
+++ b/appinfo/routes.php
@@ -27,21 +27,21 @@
 return [
 	'ocs' => [
 		# v1
-		['name' => 'Key#setPrivateKey', 'url' => '/api/v{apiVersion}/private-key', 'verb' => 'POST', 'requirements' => array('apiVersion' => '[1-2]')],
-		['name' => 'Key#getPrivateKey', 'url' => '/api/v{apiVersion}/private-key', 'verb' => 'GET', 'requirements' => array('apiVersion' => '[1-2]')],
-		['name' => 'Key#deletePrivateKey', 'url' => '/api/v{apiVersion}/private-key', 'verb' => 'DELETE', 'requirements' => array('apiVersion' => '[1-2]')],
-		['name' => 'Key#createPublicKey', 'url' => '/api/v{apiVersion}/public-key', 'verb' => 'POST', 'requirements' => array('apiVersion' => '[1-2]')],
-		['name' => 'Key#getPublicKeys', 'url' => '/api/v{apiVersion}/public-key', 'verb' => 'GET', 'requirements' => array('apiVersion' => '[1-2]')],
-		['name' => 'Key#deletePublicKey', 'url' => '/api/v{apiVersion}/public-key', 'verb' => 'DELETE', 'requirements' => array('apiVersion' => '[1-2]')],
-		['name' => 'Key#getPublicServerKey', 'url' => '/api/v{apiVersion}/server-key', 'verb' => 'GET', 'requirements' => array('apiVersion' => '[1-2]')],
+		['name' => 'Key#setPrivateKey', 'url' => '/api/v{apiVersion}/private-key', 'verb' => 'POST', 'requirements' => ['apiVersion' => '[1-2]']],
+		['name' => 'Key#getPrivateKey', 'url' => '/api/v{apiVersion}/private-key', 'verb' => 'GET', 'requirements' => ['apiVersion' => '[1-2]']],
+		['name' => 'Key#deletePrivateKey', 'url' => '/api/v{apiVersion}/private-key', 'verb' => 'DELETE', 'requirements' => ['apiVersion' => '[1-2]']],
+		['name' => 'Key#createPublicKey', 'url' => '/api/v{apiVersion}/public-key', 'verb' => 'POST', 'requirements' => ['apiVersion' => '[1-2]']],
+		['name' => 'Key#getPublicKeys', 'url' => '/api/v{apiVersion}/public-key', 'verb' => 'GET', 'requirements' => ['apiVersion' => '[1-2]']],
+		['name' => 'Key#deletePublicKey', 'url' => '/api/v{apiVersion}/public-key', 'verb' => 'DELETE', 'requirements' => ['apiVersion' => '[1-2]']],
+		['name' => 'Key#getPublicServerKey', 'url' => '/api/v{apiVersion}/server-key', 'verb' => 'GET', 'requirements' => ['apiVersion' => '[1-2]']],
 		['name' => 'V1\MetaData#setMetaData', 'url' => '/api/v1/meta-data/{id}', 'verb' => 'POST'],
 		['name' => 'V1\MetaData#getMetaData', 'url' => '/api/v1/meta-data/{id}', 'verb' => 'GET'],
 		['name' => 'V1\MetaData#updateMetaData', 'url' => '/api/v1/meta-data/{id}', 'verb' => 'PUT'],
 		['name' => 'V1\MetaData#deleteMetaData', 'url' => '/api/v1/meta-data/{id}', 'verb' => 'DELETE'],
 		['name' => 'V1\MetaData#addMetadataFileDrop', 'url' => '/api/v1/meta-data/{id}/filedrop', 'verb' => 'PUT'],
-		['name' => 'Encryption#removeEncryptedFolders', 'url' => '/api/v{apiVersion}/encrypted-files', 'verb' => 'DELETE', 'requirements' => array('apiVersion' => '[1-2]')],
-		['name' => 'Encryption#setEncryptionFlag', 'url' => '/api/v{apiVersion}/encrypted/{id}', 'verb' => 'PUT', 'requirements' => array('apiVersion' => '[1-2]')],
-		['name' => 'Encryption#removeEncryptionFlag', 'url' => '/api/v{apiVersion}/encrypted/{id}', 'verb' => 'DELETE', 'requirements' => array('apiVersion' => '[1-2]')],
+		['name' => 'Encryption#removeEncryptedFolders', 'url' => '/api/v{apiVersion}/encrypted-files', 'verb' => 'DELETE', 'requirements' => ['apiVersion' => '[1-2]']],
+		['name' => 'Encryption#setEncryptionFlag', 'url' => '/api/v{apiVersion}/encrypted/{id}', 'verb' => 'PUT', 'requirements' => ['apiVersion' => '[1-2]']],
+		['name' => 'Encryption#removeEncryptionFlag', 'url' => '/api/v{apiVersion}/encrypted/{id}', 'verb' => 'DELETE', 'requirements' => ['apiVersion' => '[1-2]']],
 		['name' => 'V1\Locking#lockFolder', 'url' => '/api/v1/lock/{id}', 'verb' => 'POST'],
 		['name' => 'V1\Locking#unlockFolder', 'url' => '/api/v1/lock/{id}', 'verb' => 'DELETE'],
 		# v2
diff --git a/composer.lock b/composer.lock
index 02ce1876..96eba506 100644
--- a/composer.lock
+++ b/composer.lock
@@ -138,16 +138,16 @@
         },
         {
             "name": "nextcloud/coding-standard",
-            "version": "v1.1.1",
+            "version": "v1.2.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/nextcloud/coding-standard.git",
-                "reference": "55def702fb9a37a219511e1d8c6fe8e37164c1fb"
+                "reference": "cf5f18d989ec62fb4cdc7fc92a36baf34b3d829e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/nextcloud/coding-standard/zipball/55def702fb9a37a219511e1d8c6fe8e37164c1fb",
-                "reference": "55def702fb9a37a219511e1d8c6fe8e37164c1fb",
+                "url": "https://api.github.com/repos/nextcloud/coding-standard/zipball/cf5f18d989ec62fb4cdc7fc92a36baf34b3d829e",
+                "reference": "cf5f18d989ec62fb4cdc7fc92a36baf34b3d829e",
                 "shasum": ""
             },
             "require": {
@@ -173,9 +173,9 @@
             "description": "Nextcloud coding standards for the php cs fixer",
             "support": {
                 "issues": "https://github.com/nextcloud/coding-standard/issues",
-                "source": "https://github.com/nextcloud/coding-standard/tree/v1.1.1"
+                "source": "https://github.com/nextcloud/coding-standard/tree/v1.2.1"
             },
-            "time": "2023-06-01T12:05:01+00:00"
+            "time": "2024-02-01T14:54:37+00:00"
         },
         {
             "name": "nextcloud/ocp",
@@ -391,16 +391,16 @@
         },
         {
             "name": "php-cs-fixer/shim",
-            "version": "v3.42.0",
+            "version": "v3.59.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/PHP-CS-Fixer/shim.git",
-                "reference": "c503b36b4ae065ac9dbfbda584e0827b32afa1c4"
+                "reference": "c855876e64de3431bc9279f27af7be40d11d7613"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/PHP-CS-Fixer/shim/zipball/c503b36b4ae065ac9dbfbda584e0827b32afa1c4",
-                "reference": "c503b36b4ae065ac9dbfbda584e0827b32afa1c4",
+                "url": "https://api.github.com/repos/PHP-CS-Fixer/shim/zipball/c855876e64de3431bc9279f27af7be40d11d7613",
+                "reference": "c855876e64de3431bc9279f27af7be40d11d7613",
                 "shasum": ""
             },
             "require": {
@@ -437,9 +437,9 @@
             "description": "A tool to automatically fix PHP code style",
             "support": {
                 "issues": "https://github.com/PHP-CS-Fixer/shim/issues",
-                "source": "https://github.com/PHP-CS-Fixer/shim/tree/v3.42.0"
+                "source": "https://github.com/PHP-CS-Fixer/shim/tree/v3.59.3"
             },
-            "time": "2023-12-24T14:39:15+00:00"
+            "time": "2024-06-16T14:17:34+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",
diff --git a/lib/Exceptions/FileLockedException.php b/lib/Exceptions/FileLockedException.php
index b23fcf48..0b681192 100644
--- a/lib/Exceptions/FileLockedException.php
+++ b/lib/Exceptions/FileLockedException.php
@@ -28,7 +28,7 @@
 use Throwable;
 
 class FileLockedException extends Exception {
-	public function __construct(string $message = 'File is locked', int $code = 0, Throwable $previous = null) {
+	public function __construct(string $message = 'File is locked', int $code = 0, ?Throwable $previous = null) {
 		parent::__construct($message, $code, $previous);
 	}
 }
diff --git a/lib/Exceptions/FileNotLockedException.php b/lib/Exceptions/FileNotLockedException.php
index ccecd945..bce38c39 100644
--- a/lib/Exceptions/FileNotLockedException.php
+++ b/lib/Exceptions/FileNotLockedException.php
@@ -28,7 +28,7 @@
 use Throwable;
 
 class FileNotLockedException extends Exception {
-	public function __construct(string $message = 'File is not locked', int $code = 0, Throwable $previous = null) {
+	public function __construct(string $message = 'File is not locked', int $code = 0, ?Throwable $previous = null) {
 		parent::__construct($message, $code, $previous);
 	}
 }
diff --git a/lib/Exceptions/KeyExistsException.php b/lib/Exceptions/KeyExistsException.php
index 0ecd7ccf..a3926788 100644
--- a/lib/Exceptions/KeyExistsException.php
+++ b/lib/Exceptions/KeyExistsException.php
@@ -36,7 +36,7 @@ class KeyExistsException extends Exception {
 	 * @param int $code
 	 * @param Throwable|null $previous
 	 */
-	public function __construct(string $message = 'key already exists', int $code = 0, Throwable $previous = null) {
+	public function __construct(string $message = 'key already exists', int $code = 0, ?Throwable $previous = null) {
 		parent::__construct($message, $code, $previous);
 	}
 }
diff --git a/lib/Exceptions/MetaDataExistsException.php b/lib/Exceptions/MetaDataExistsException.php
index b9fd4380..bf8cbc2f 100644
--- a/lib/Exceptions/MetaDataExistsException.php
+++ b/lib/Exceptions/MetaDataExistsException.php
@@ -36,7 +36,7 @@ class MetaDataExistsException extends Exception {
 	 * @param int $code
 	 * @param Throwable|null $previous
 	 */
-	public function __construct(string $message = 'meta data file already exists', int $code = 0, Throwable $previous = null) {
+	public function __construct(string $message = 'meta data file already exists', int $code = 0, ?Throwable $previous = null) {
 		parent::__construct($message, $code, $previous);
 	}
 }
diff --git a/lib/Exceptions/MissingMetaDataException.php b/lib/Exceptions/MissingMetaDataException.php
index cd1bf0c4..241f9453 100644
--- a/lib/Exceptions/MissingMetaDataException.php
+++ b/lib/Exceptions/MissingMetaDataException.php
@@ -36,7 +36,7 @@ class MissingMetaDataException extends Exception {
 	 * @param int $code
 	 * @param Throwable|null $previous
 	 */
-	public function __construct(string $message = 'can\'t find meta data file', int $code = 0, Throwable $previous = null) {
+	public function __construct(string $message = 'can\'t find meta data file', int $code = 0, ?Throwable $previous = null) {
 		parent::__construct($message, $code, $previous);
 	}
 }