diff --git a/lib/BackgroundJob/TrainJobIpV4.php b/lib/BackgroundJob/TrainJobIpV4.php
index f61c4188..99bab3fc 100644
--- a/lib/BackgroundJob/TrainJobIpV4.php
+++ b/lib/BackgroundJob/TrainJobIpV4.php
@@ -15,20 +15,16 @@
 use OCA\SuspiciousLogin\Service\TrainService;
 use OCP\AppFramework\Utility\ITimeFactory;
 use OCP\BackgroundJob\TimedJob;
-use OCP\ILogger;
+use Psr\Log\LoggerInterface;
 use Throwable;
 
 class TrainJobIpV4 extends TimedJob {
 
-	/** @var TrainService */
-	private $trainService;
-
-	/** @var ILogger */
-	private $logger;
-
-	public function __construct(TrainService $trainService,
-		ILogger $logger,
-		ITimeFactory $time) {
+	public function __construct(
+		private TrainService $trainService,
+		private LoggerInterface $logger,
+		ITimeFactory $time,
+	) {
 		parent::__construct($time);
 
 		$this->setInterval(24 * 60 * 60);
@@ -38,8 +34,6 @@ public function __construct(TrainService $trainService,
 		if (defined('\OCP\BackgroundJob\IJob::TIME_INSENSITIVE') && method_exists($this, 'setTimeSensitivity')) {
 			$this->setTimeSensitivity(self::TIME_INSENSITIVE);
 		}
-		$this->trainService = $trainService;
-		$this->logger = $logger;
 	}
 
 	/**
@@ -56,15 +50,9 @@ protected function run($argument) {
 				$strategy
 			);
 		} catch (InsufficientDataException $ex) {
-			$this->logger->logException($ex, [
-				'level' => ILogger::INFO,
-				'message' => 'No suspicious login model for IPv4 trained because of insufficient data',
-			]);
+			$this->logger->info('No suspicious login model for IPv4 trained because of insufficient data', ['exception' => $ex]);
 		} catch (Throwable $ex) {
-			$this->logger->logException($ex, [
-				'level' => ILogger::ERROR,
-				'message' => 'Caught unknown error during IPv4 background training',
-			]);
+			$this->logger->error('Caught unknown error during IPv4 background training', ['exception' => $ex]);
 		}
 	}
 }
diff --git a/lib/BackgroundJob/TrainJobIpV6.php b/lib/BackgroundJob/TrainJobIpV6.php
index bbb348de..bf236d0d 100644
--- a/lib/BackgroundJob/TrainJobIpV6.php
+++ b/lib/BackgroundJob/TrainJobIpV6.php
@@ -15,20 +15,16 @@
 use OCA\SuspiciousLogin\Service\TrainService;
 use OCP\AppFramework\Utility\ITimeFactory;
 use OCP\BackgroundJob\TimedJob;
-use OCP\ILogger;
+use Psr\Log\LoggerInterface;
 use Throwable;
 
 class TrainJobIpV6 extends TimedJob {
 
-	/** @var TrainService */
-	private $trainService;
-
-	/** @var ILogger */
-	private $logger;
-
-	public function __construct(TrainService $trainService,
-		ILogger $logger,
-		ITimeFactory $time) {
+	public function __construct(
+		private TrainService $trainService,
+		private LoggerInterface $logger,
+		ITimeFactory $time,
+	) {
 		parent::__construct($time);
 
 		$this->setInterval(24 * 60 * 60);
@@ -38,8 +34,6 @@ public function __construct(TrainService $trainService,
 		if (defined('\OCP\BackgroundJob\IJob::TIME_INSENSITIVE') && method_exists($this, 'setTimeSensitivity')) {
 			$this->setTimeSensitivity(self::TIME_INSENSITIVE);
 		}
-		$this->trainService = $trainService;
-		$this->logger = $logger;
 	}
 
 	/**
@@ -56,15 +50,9 @@ protected function run($argument) {
 				$strategy
 			);
 		} catch (InsufficientDataException $ex) {
-			$this->logger->logException($ex, [
-				'level' => ILogger::INFO,
-				'message' => 'No suspicious login model for IPv6 trained because of insufficient data',
-			]);
+			$this->logger->info('No suspicious login model for IPv6 trained because of insufficient data', ['exception' => $ex]);
 		} catch (Throwable $ex) {
-			$this->logger->logException($ex, [
-				'level' => ILogger::ERROR,
-				'message' => 'Caught unknown error during IPv6 background training',
-			]);
+			$this->logger->error('Caught unknown error during IPv6 background training', ['exception' => $ex]);
 		}
 	}
 }
diff --git a/lib/Listener/LoginMailListener.php b/lib/Listener/LoginMailListener.php
index 659b0cff..5ad72a07 100644
--- a/lib/Listener/LoginMailListener.php
+++ b/lib/Listener/LoginMailListener.php
@@ -14,38 +14,24 @@
 use OCP\EventDispatcher\IEventListener;
 use OCP\IConfig;
 use OCP\IL10N;
-use OCP\ILogger;
 use OCP\IUser;
 use OCP\IUserManager;
 use OCP\Mail\IMailer;
 use OCP\Mail\IMessage;
+use Psr\Log\LoggerInterface;
 
 /**
  * @implements IEventListener<SuspiciousLoginEvent>
  */
 class LoginMailListener implements IEventListener {
 
-	/** @var ILogger */
-	private $logger;
-	
-	/** @var IMailer */
-	private $mailer;
-	
-	/** @var IUserManager */
-	private $userManager;
-	
-	/** @var IL10N */
-	private $l;
-	
-	/** @var IConfig */
-	protected $config;
-
-	public function __construct(ILogger $logger, IMailer $mailer, IUserManager $userManager, IL10N $l, IConfig $config) {
-		$this->logger = $logger;
-		$this->mailer = $mailer;
-		$this->userManager = $userManager;
-		$this->l = $l;
-		$this->config = $config;
+	public function __construct(
+		private LoggerInterface $logger,
+		private IMailer $mailer,
+		private IUserManager $userManager,
+		private IL10N $l,
+		private IConfig $config,
+	) {
 	}
 
 	public function handle(Event $event): void {
@@ -69,10 +55,7 @@ public function handle(Event $event): void {
 				$this->getMail($event, $user)
 			);
 		} catch (Exception $e) {
-			$this->logger->logException($e, [
-				'message' => "Could not send suspicious login email to <$uid>",
-				'level' => ILogger::ERROR,
-			]);
+			$this->logger->error("Could not send suspicious login email to <$uid>", ['exception' => $e]);
 		}
 	}
 
diff --git a/lib/Listener/LoginNotificationListener.php b/lib/Listener/LoginNotificationListener.php
index 639f322c..74ff847d 100644
--- a/lib/Listener/LoginNotificationListener.php
+++ b/lib/Listener/LoginNotificationListener.php
@@ -13,27 +13,19 @@
 use OCP\AppFramework\Utility\ITimeFactory;
 use OCP\EventDispatcher\Event;
 use OCP\EventDispatcher\IEventListener;
-use OCP\ILogger;
 use OCP\Notification\IManager;
+use Psr\Log\LoggerInterface;
 
 /**
  * @implements IEventListener<SuspiciousLoginEvent>
  */
 class LoginNotificationListener implements IEventListener {
 
-	/** @var IManager */
-	private $notificationManager;
-	/** @var ITimeFactory */
-	private $timeFactory;
-	/** @var ILogger */
-	private $logger;
-
-	public function __construct(IManager $notificationManager,
-		ITimeFactory $timeFactory,
-		ILogger $logger) {
-		$this->notificationManager = $notificationManager;
-		$this->timeFactory = $timeFactory;
-		$this->logger = $logger;
+	public function __construct(
+		private IManager $notificationManager,
+		private ITimeFactory $timeFactory,
+		private LoggerInterface $logger,
+	) {
 	}
 
 	public function handle(Event $event): void {
@@ -52,8 +44,7 @@ public function handle(Event $event): void {
 				]);
 			$this->notificationManager->notify($notification);
 		} catch (\Throwable $ex) {
-			$this->logger->critical("could not send notification about a suspicious login");
-			$this->logger->logException($ex);
+			$this->logger->critical('Could not send notification about a suspicious login', ['exception' => $ex]);
 		}
 	}
 }
diff --git a/lib/Service/ETLService.php b/lib/Service/ETLService.php
index 8f388407..c99cc181 100644
--- a/lib/Service/ETLService.php
+++ b/lib/Service/ETLService.php
@@ -13,28 +13,18 @@
 use OCA\SuspiciousLogin\Db\LoginAddressAggregatedMapper;
 use OCP\DB\QueryBuilder\IQueryBuilder;
 use OCP\IDBConnection;
-use OCP\ILogger;
+use Psr\Log\LoggerInterface;
 use Symfony\Component\Console\Helper\ProgressBar;
 use Symfony\Component\Console\Output\OutputInterface;
 
 class ETLService {
 	public const MAX_BATCH_SIZE = 10000;
 
-	/** @var IDBConnection */
-	private $db;
-
-	/** @var LoginAddressAggregatedMapper */
-	private $aggregatedMapper;
-
-	/** @var ILogger */
-	private $logger;
-
-	public function __construct(IDBConnection $db,
-		LoginAddressAggregatedMapper $aggregatedMapper,
-		ILogger $logger) {
-		$this->db = $db;
-		$this->aggregatedMapper = $aggregatedMapper;
-		$this->logger = $logger;
+	public function __construct(
+		private IDBConnection $db,
+		private LoginAddressAggregatedMapper $aggregatedMapper,
+		private LoggerInterface $logger,
+	) {
 	}
 
 	private function getRaw(int $max, ?OutputInterface $output = null): Generator {
diff --git a/lib/Service/EstimatorService.php b/lib/Service/EstimatorService.php
index 0becd13e..ada3f458 100644
--- a/lib/Service/EstimatorService.php
+++ b/lib/Service/EstimatorService.php
@@ -10,22 +10,16 @@
 namespace OCA\SuspiciousLogin\Service;
 
 use OCA\SuspiciousLogin\Exception\ServiceException;
-use OCP\ILogger;
+use Psr\Log\LoggerInterface;
 use Rubix\ML\Datasets\Unlabeled;
 use RuntimeException;
 
 class EstimatorService {
 
-	/** @var ModelStore */
-	private $modelStore;
-
-	/** @var ILogger */
-	private $logger;
-
-	public function __construct(ModelStore $modelStore,
-		ILogger $logger) {
-		$this->modelStore = $modelStore;
-		$this->logger = $logger;
+	public function __construct(
+		private ModelStore $modelStore,
+		private LoggerInterface $logger,
+	) {
 	}
 
 	/**
diff --git a/lib/Service/LoginClassifier.php b/lib/Service/LoginClassifier.php
index 44dd4fb9..47d3a743 100644
--- a/lib/Service/LoginClassifier.php
+++ b/lib/Service/LoginClassifier.php
@@ -16,8 +16,8 @@
 use OCA\SuspiciousLogin\Util\AddressClassifier;
 use OCP\AppFramework\Utility\ITimeFactory;
 use OCP\EventDispatcher\IEventDispatcher;
-use OCP\ILogger;
 use OCP\IRequest;
+use Psr\Log\LoggerInterface;
 use Throwable;
 use function base64_decode;
 use function explode;
@@ -27,36 +27,14 @@
 
 class LoginClassifier {
 
-	/** @var EstimatorService */
-	private $estimator;
-
-	/** @var IRequest */
-	private $request;
-
-	/** @var ILogger */
-	private $logger;
-
-	/** @var SuspiciousLoginMapper */
-	private $mapper;
-
-	/** @var ITimeFactory */
-	private $timeFactory;
-
-	/** @var IEventDispatcher */
-	private $dispatcher;
-
-	public function __construct(EstimatorService $estimator,
-		IRequest $request,
-		ILogger $logger,
-		SuspiciousLoginMapper $mapper,
-		ITimeFactory $timeFactory,
-		IEventDispatcher $dispatcher) {
-		$this->estimator = $estimator;
-		$this->request = $request;
-		$this->logger = $logger;
-		$this->mapper = $mapper;
-		$this->timeFactory = $timeFactory;
-		$this->dispatcher = $dispatcher;
+	public function __construct(
+		private EstimatorService $estimator,
+		private IRequest $request,
+		private LoggerInterface $logger,
+		private SuspiciousLoginMapper $mapper,
+		private ITimeFactory $timeFactory,
+		private IEventDispatcher $dispatcher,
+	) {
 	}
 
 	/**
@@ -126,8 +104,7 @@ private function persistSuspiciousLogin(string $uid, string $ip): ?SuspiciousLog
 
 			return $entity;
 		} catch (Throwable $ex) {
-			$this->logger->critical("could not save the details of a suspicious login");
-			$this->logger->logException($ex);
+			$this->logger->critical('could not save the details of a suspicious login', ['exception' => $ex]);
 			return null;
 		}
 	}
diff --git a/lib/Service/ModelStore.php b/lib/Service/ModelStore.php
index 3f1c1235..f237e90f 100644
--- a/lib/Service/ModelStore.php
+++ b/lib/Service/ModelStore.php
@@ -18,8 +18,8 @@
 use OCP\Files\IAppData;
 use OCP\Files\NotFoundException;
 use OCP\ICacheFactory;
-use OCP\ILogger;
 use OCP\ITempManager;
+use Psr\Log\LoggerInterface;
 use Rubix\ML\Estimator;
 use Rubix\ML\Persistable;
 use Rubix\ML\Persisters\Filesystem;
@@ -32,36 +32,14 @@
 class ModelStore {
 	public const APPDATA_MODELS_FOLDER = 'models';
 
-	/** @var ModelMapper */
-	private $modelMapper;
-
-	/** @var IAppData */
-	private $appData;
-
-	/** @var IAppManager */
-	private $appManager;
-
-	/** @var ITempManager */
-	private $tempManager;
-
-	/** @var ICacheFactory */
-	private $cacheFactory;
-
-	/** @var ILogger */
-	private $logger;
-
-	public function __construct(ModelMapper $modelMapper,
-		IAppData $appData,
-		IAppManager $appManager,
-		ITempManager $tempManager,
-		ICacheFactory $cachFactory,
-		ILogger $logger) {
-		$this->appData = $appData;
-		$this->appManager = $appManager;
-		$this->modelMapper = $modelMapper;
-		$this->tempManager = $tempManager;
-		$this->cacheFactory = $cachFactory;
-		$this->logger = $logger;
+	public function __construct(
+		private ModelMapper $modelMapper,
+		private IAppData $appData,
+		private IAppManager $appManager,
+		private ITempManager $tempManager,
+		private ICacheFactory $cacheFactory,
+		private LoggerInterface $logger,
+	) {
 	}
 
 	/**