diff --git a/Tests/Functional/Frontend/AbstractProcessesMarkersTest.php b/Tests/Functional/Frontend/AbstractProcessesMarkersTest.php
index 299a93f..332e646 100644
--- a/Tests/Functional/Frontend/AbstractProcessesMarkersTest.php
+++ b/Tests/Functional/Frontend/AbstractProcessesMarkersTest.php
@@ -28,11 +28,11 @@
 
 abstract class AbstractProcessesMarkersTest extends FunctionalTestCase
 {
-    protected $testExtensionsToLoad = [
+    protected array $testExtensionsToLoad = [
         'typo3conf/ext/variables',
     ];
 
-    protected $pathsToLinkInTestInstance = [
+    protected array $pathsToLinkInTestInstance = [
         'typo3conf/ext/variables/Tests/Functional/Fixtures/Frontend/Sites/' => 'typo3conf/sites',
     ];
 
diff --git a/Tests/Functional/Frontend/BreaksOnInvalidHookTest.php b/Tests/Functional/Frontend/BreaksOnInvalidHookTest.php
index a81ab3e..6c38b8a 100644
--- a/Tests/Functional/Frontend/BreaksOnInvalidHookTest.php
+++ b/Tests/Functional/Frontend/BreaksOnInvalidHookTest.php
@@ -30,7 +30,7 @@
  */
 class BreaksOnInvalidHookTest extends AbstractProcessesMarkersTest
 {
-    protected $configurationToUseInTestInstance = [
+    protected array $configurationToUseInTestInstance = [
         'EXTCONF' => [
             'variables' => [
                 'postProcessMarkers' => [
@@ -40,10 +40,7 @@ class BreaksOnInvalidHookTest extends AbstractProcessesMarkersTest
         ],
     ];
 
-    /**
-     * @test
-     */
-    public function throwsExceptionIfConfiguredClassDoesntImplementInterface(): void
+    public function testThrowsExceptionIfConfiguredClassDoesntImplementInterface(): void
     {
         $this->expectException(\RuntimeException::class);
         $this->expectExceptionMessage('Sinso\Variables\Tests\Functional\Fixtures\Frontend\Hook\NotImplementingInterface does not implement Sinso\Variables\Hooks\MarkersProcessorInterface');
diff --git a/Tests/Functional/Frontend/ProcessesMarkersHookTest.php b/Tests/Functional/Frontend/ProcessesMarkersHookTest.php
index ac80bd4..22f0d7c 100644
--- a/Tests/Functional/Frontend/ProcessesMarkersHookTest.php
+++ b/Tests/Functional/Frontend/ProcessesMarkersHookTest.php
@@ -30,7 +30,7 @@
  */
 class ProcessesMarkersHookTest extends AbstractProcessesMarkersTest
 {
-    protected $configurationToUseInTestInstance = [
+    protected array $configurationToUseInTestInstance = [
         'EXTCONF' => [
             'variables' => [
                 'postProcessMarkers' => [
@@ -40,10 +40,7 @@ class ProcessesMarkersHookTest extends AbstractProcessesMarkersTest
         ],
     ];
 
-    /**
-     * @test
-     */
-    public function executesHookClass(): void
+    public function testExecutesHookClass(): void
     {
         $this->importDataSet('EXT:variables/Tests/Functional/Fixtures/Frontend/Marker.xml');