diff --git a/.github/workflows/phpunit-sqlite.yml b/.github/workflows/phpunit-sqlite.yml
index 9a86fea1..e8426e7f 100644
--- a/.github/workflows/phpunit-sqlite.yml
+++ b/.github/workflows/phpunit-sqlite.yml
@@ -27,7 +27,7 @@ jobs:
 
     strategy:
       matrix:
-        php-versions: ['7.4', '8.0', '8.1']
+        php-versions: ['8.1', '8.2', '8.3']
         server-versions: ['master']
 
     steps:
diff --git a/composer.json b/composer.json
index 502ecded..7912981e 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
 		"optimize-autoloader": true,
 		"classmap-authoritative": true,
 		"platform": {
-			"php": "8.0"
+			"php": "8.0.2"
 		}
 	},
 	"scripts": {
diff --git a/lib/AppInfo/Application.php b/lib/AppInfo/Application.php
index 8bc4402e..4e3537a8 100644
--- a/lib/AppInfo/Application.php
+++ b/lib/AppInfo/Application.php
@@ -28,7 +28,7 @@
 use OCP\AppFramework\Bootstrap\IRegistrationContext;
 
 class Application extends App implements IBootstrap {
-	public function __construct(array $urlParams = array()) {
+	public function __construct(array $urlParams = []) {
 		parent::__construct('survey_client', $urlParams);
 	}
 
diff --git a/lib/BackgroundJobs/AdminNotification.php b/lib/BackgroundJobs/AdminNotification.php
index 06659b6b..411756dc 100644
--- a/lib/BackgroundJobs/AdminNotification.php
+++ b/lib/BackgroundJobs/AdminNotification.php
@@ -33,9 +33,9 @@ class AdminNotification extends QueuedJob {
 	protected IURLGenerator $url;
 
 	public function __construct(ITimeFactory $time,
-								IManager $manager,
-								IGroupManager $groupManager,
-								IURLGenerator $url) {
+		IManager $manager,
+		IGroupManager $groupManager,
+		IURLGenerator $url) {
 		parent::__construct($time);
 		$this->manager = $manager;
 		$this->groupManager = $groupManager;
diff --git a/lib/BackgroundJobs/MonthlyReport.php b/lib/BackgroundJobs/MonthlyReport.php
index c427cc5b..086b0561 100644
--- a/lib/BackgroundJobs/MonthlyReport.php
+++ b/lib/BackgroundJobs/MonthlyReport.php
@@ -33,8 +33,8 @@ class MonthlyReport extends TimedJob {
 	protected LoggerInterface $logger;
 
 	public function __construct(ITimeFactory $time,
-								Collector $collector,
-								LoggerInterface $logger) {
+		Collector $collector,
+		LoggerInterface $logger) {
 		parent::__construct($time);
 		$this->collector = $collector;
 		$this->logger = $logger;
diff --git a/lib/Categories/Database.php b/lib/Categories/Database.php
index 30846d17..0fd76b3b 100644
--- a/lib/Categories/Database.php
+++ b/lib/Categories/Database.php
@@ -150,7 +150,7 @@ protected function databaseSize() {
 				if ($row['proname'] === 'pg_database_size') {
 					$database = $this->config->getSystemValue('dbname');
 					if (strpos($database, '.') !== false) {
-						list($database, ) = explode('.', $database);
+						[$database, ] = explode('.', $database);
 					}
 					$sql = "SELECT oid
 						FROM pg_database
diff --git a/lib/Controller/EndpointController.php b/lib/Controller/EndpointController.php
index be7d925b..35c3a374 100644
--- a/lib/Controller/EndpointController.php
+++ b/lib/Controller/EndpointController.php
@@ -23,14 +23,14 @@
 
 namespace OCA\Survey_Client\Controller;
 
-use OCA\Survey_Client\Collector;
+use OCA\Survey_Client\BackgroundJobs\MonthlyReport;
 
+use OCA\Survey_Client\Collector;
 use OCP\AppFramework\Http\DataResponse;
 use OCP\AppFramework\OCSController;
 use OCP\BackgroundJob\IJobList;
 use OCP\IRequest;
 use OCP\Notification\IManager;
-use OCA\Survey_Client\BackgroundJobs\MonthlyReport;
 
 class EndpointController extends OCSController {
 
@@ -51,10 +51,10 @@ class EndpointController extends OCSController {
 	 * @param IManager $manager
 	 */
 	public function __construct(string $appName,
-								IRequest $request,
-								Collector $collector,
-								IJobList $jobList,
-								IManager $manager) {
+		IRequest $request,
+		Collector $collector,
+		IJobList $jobList,
+		IManager $manager) {
 		parent::__construct($appName, $request);
 
 		$this->collector = $collector;
diff --git a/lib/Migration/SendAdminNotification.php b/lib/Migration/SendAdminNotification.php
index ea15d0de..80b5f213 100644
--- a/lib/Migration/SendAdminNotification.php
+++ b/lib/Migration/SendAdminNotification.php
@@ -26,11 +26,11 @@
 
 namespace OCA\Survey_Client\Migration;
 
+use OCA\Survey_Client\BackgroundJobs\AdminNotification;
+use OCA\Survey_Client\BackgroundJobs\MonthlyReport;
 use OCP\BackgroundJob\IJobList;
 use OCP\Migration\IOutput;
 use OCP\Migration\IRepairStep;
-use OCA\Survey_Client\BackgroundJobs\MonthlyReport;
-use OCA\Survey_Client\BackgroundJobs\AdminNotification;
 
 class SendAdminNotification implements IRepairStep {
 	/** @var IJobList */
diff --git a/lib/Settings/AdminSettings.php b/lib/Settings/AdminSettings.php
index b17f4fb5..e8951f8a 100644
--- a/lib/Settings/AdminSettings.php
+++ b/lib/Settings/AdminSettings.php
@@ -48,10 +48,10 @@ class AdminSettings implements ISettings {
 	private $jobList;
 
 	public function __construct(Collector $collector,
-								IConfig $config,
-								IL10N $l,
-								IDateTimeFormatter $dateTimeFormatter,
-								IJobList $jobList
+		IConfig $config,
+		IL10N $l,
+		IDateTimeFormatter $dateTimeFormatter,
+		IJobList $jobList
 	) {
 		$this->collector = $collector;
 		$this->config = $config;
diff --git a/templates/admin.php b/templates/admin.php
index 0fb72a36..1f1f316c 100644
--- a/templates/admin.php
+++ b/templates/admin.php
@@ -56,7 +56,7 @@
 		</p>
 		<?php
 	}
-	?>
+?>
 
 	<div id="last_report">
 		<h3>