diff --git a/.github/workflows/appstore-conventional-build-publish.yml b/.github/workflows/appstore-conventional-build-publish.yml
index 9dd34167..15184f8b 100644
--- a/.github/workflows/appstore-conventional-build-publish.yml
+++ b/.github/workflows/appstore-conventional-build-publish.yml
@@ -54,7 +54,7 @@ jobs:
 
       - name: Conventional Changelog Action
         id: changelog
-        uses: TriPSs/conventional-changelog-action@b7f32a8347e86c26ea2f4823cc7c160b9014c6a0 # v3
+        uses: TriPSs/conventional-changelog-action@b7f32a8347e86c26ea2f4823cc7c160b9014c6a0 # v3.18.1
         with:
           github-token: ${{ secrets.RELEASE_PAT }}
           git-user-email: nextcloud-command@users.noreply.github.com
@@ -75,7 +75,7 @@ jobs:
       - name: Create Release
         if: ${{ steps.changelog.outputs.skipped == 'false' }}
         id: create_release
-        uses: actions/create-release@0cb9c9b65d5d1901c1f53e5e66eaf4afd303e70e # v1
+        uses: actions/create-release@0cb9c9b65d5d1901c1f53e5e66eaf4afd303e70e # v1.1.4
         env:
           GITHUB_TOKEN: ${{ secrets.RELEASE_PAT }}
         with:
diff --git a/lib/Command/Generate.php b/lib/Command/Generate.php
index 04ba691e..84d22989 100644
--- a/lib/Command/Generate.php
+++ b/lib/Command/Generate.php
@@ -22,7 +22,7 @@ class Generate extends Command {
 	private $userManager;
 
 	public function __construct(
-		private CodeStorage $codeStorage,
+		private readonly CodeStorage $codeStorage,
 		IUserManager $userManager,
 	) {
 		parent::__construct();
diff --git a/lib/Controller/AdminCodeController.php b/lib/Controller/AdminCodeController.php
index d3d98d34..b92ad64d 100644
--- a/lib/Controller/AdminCodeController.php
+++ b/lib/Controller/AdminCodeController.php
@@ -39,7 +39,7 @@ public function __construct(
 		IUserManager $userManager,
 		IGroupManager $groupManager,
 		ISubAdmin $subAdmin,
-		private CodeStorage $codeStorage,
+		private readonly CodeStorage $codeStorage,
 		IUserSession $userSession,
 	) {
 		parent::__construct(Application::APP_ID, $request);
diff --git a/lib/Event/StateChanged.php b/lib/Event/StateChanged.php
index 66d75742..1b11619a 100644
--- a/lib/Event/StateChanged.php
+++ b/lib/Event/StateChanged.php
@@ -19,7 +19,7 @@ class StateChanged extends Event {
 
 	public function __construct(
 		IUser $user,
-		private bool $enabled,
+		private readonly bool $enabled,
 	) {
 		parent::__construct();
 
diff --git a/lib/Listener/StateChangeRegistryUpdater.php b/lib/Listener/StateChangeRegistryUpdater.php
index c061d1ea..1bb79178 100644
--- a/lib/Listener/StateChangeRegistryUpdater.php
+++ b/lib/Listener/StateChangeRegistryUpdater.php
@@ -22,7 +22,7 @@ class StateChangeRegistryUpdater implements IEventListener {
 
 	public function __construct(
 		IRegistry $registry,
-		private AdminProvider $provider,
+		private readonly AdminProvider $provider,
 	) {
 		$this->registry = $registry;
 	}
diff --git a/lib/Provider/AdminProvider.php b/lib/Provider/AdminProvider.php
index 806cb289..ff1001a9 100644
--- a/lib/Provider/AdminProvider.php
+++ b/lib/Provider/AdminProvider.php
@@ -21,10 +21,10 @@
 class AdminProvider implements IProvider, IProvidesIcons, IDeactivatableByAdmin {
 
 	public function __construct(
-		private string $appName,
-		private IL10N $l10n,
-		private IURLGenerator $urlGenerator,
-		private CodeStorage $codeStorage,
+		private readonly string $appName,
+		private readonly IL10N $l10n,
+		private readonly IURLGenerator $urlGenerator,
+		private readonly CodeStorage $codeStorage,
 	) {
 	}
 
@@ -83,11 +83,11 @@ public function disableFor(IUser $user): void {
 		$this->codeStorage->removeCodesForUser($user);
 	}
 
-	public function getLightIcon(): String {
+	public function getLightIcon(): string {
 		return $this->urlGenerator->imagePath('core', 'actions/more-white.svg');
 	}
 
-	public function getDarkIcon(): String {
+	public function getDarkIcon(): string {
 		return $this->urlGenerator->imagePath('core', 'actions/more.svg');
 	}
 }
diff --git a/lib/Service/CodeStorage.php b/lib/Service/CodeStorage.php
index d6bd7f9e..158bb674 100644
--- a/lib/Service/CodeStorage.php
+++ b/lib/Service/CodeStorage.php
@@ -33,7 +33,7 @@ class CodeStorage {
 	private $timeFactory;
 
 	public function __construct(
-		private CodeMapper $codeMapper,
+		private readonly CodeMapper $codeMapper,
 		ISecureRandom $random,
 		IEventDispatcher $eventDispatcher,
 		ITimeFactory $timeFactory,
diff --git a/rector.php b/rector.php
index 50d2b347..83b499a3 100644
--- a/rector.php
+++ b/rector.php
@@ -17,7 +17,7 @@
 		__DIR__ . '/templates',
 		__DIR__ . '/tests',
 	])
-	->withPhpSets(php80: true)
+	->withPhpSets(php81: true)
 	->withTypeCoverageLevel(0)
 	->withImportNames(importShortClasses:false)
 	->withPreparedSets(
@@ -27,8 +27,7 @@
 		earlyReturn: true,
 		instanceOf: true,
 		privatization: true,
-		strictBooleans: true,
 	)
 	->withSets([
-		NextcloudSets::NEXTCLOUD_27,
+		NextcloudSets::NEXTCLOUD_30,
 	]);
diff --git a/tests/Unit/Template/ChallengeTemplateTest.php b/tests/Unit/Template/ChallengeTemplateTest.php
index 329b2427..0715e64e 100644
--- a/tests/Unit/Template/ChallengeTemplateTest.php
+++ b/tests/Unit/Template/ChallengeTemplateTest.php
@@ -26,7 +26,7 @@ protected function setUp(): void {
 	public function testRender() {
 		$html = $this->template->fetchPage();
 
-		$this->assertStringStartsWith('<img', trim($html));
+		$this->assertStringStartsWith('<img', trim((string)$html));
 	}
 
 }