diff --git a/Tests/Functional/Caching/FlushViaDataHandlerChangesTest.php b/Tests/Functional/Caching/FlushViaDataHandlerChangesTest.php
index 1a76d07..928c921 100644
--- a/Tests/Functional/Caching/FlushViaDataHandlerChangesTest.php
+++ b/Tests/Functional/Caching/FlushViaDataHandlerChangesTest.php
@@ -27,6 +27,8 @@
 use Prophecy\PhpUnit\ProphecyTrait;
 use Sinso\Variables\Hooks\DataHandler;
 use TYPO3\CMS\Core\Cache\CacheManager;
+use TYPO3\CMS\Core\Database\ConnectionPool;
+use TYPO3\CMS\Core\DataHandling\DataHandler as Typo3DataHandler;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
 use TYPO3\TestingFramework\Core\Functional\FunctionalTestCase;
 
@@ -35,36 +37,26 @@
  */
 class FlushViaDataHandlerChangesTest extends FunctionalTestCase
 {
-    use ProphecyTrait;
-
-    public function testCanBeCreated(): void
-    {
-        $subject = new DataHandler();
-
-        self::assertInstanceOf(
-            DataHandler::class,
-            $subject
-        );
-    }
-
     /**
      * @dataProvider possibleNoneTriggeringParams
      */
     public function testDoesNotInteractWithCacheManagerOnUnkownData(array $params): void
     {
-        $cacheManager = $this->prophesize(CacheManager::class);
-        GeneralUtility::setSingletonInstance(CacheManager::class, $cacheManager->reveal());
-
-        $subject = new DataHandler();
-        $subject->clearCachePostProc($params);
-
-        $cacheManager->flushCachesInGroupByTag('pages', Argument::type('array'))->shouldNotBeCalled();
+        $connectionPool = self::createMock(ConnectionPool::class);
+        $cacheManager = self::createMock(CacheManager::class);
+        $cacheManager
+            ->expects(self::never())
+            ->method('flushCachesInGroupByTag')
+        ;
+
+        $subject = new DataHandler($connectionPool, $cacheManager);
+        $subject->clearCachePostProc($params, self::createStub(Typo3DataHandler::class));
     }
 
     /**
      * @return Generator<string,array{params:array}|array{params:array<string,string>}>
      */
-    public function possibleNoneTriggeringParams(): \Generator
+    public static function possibleNoneTriggeringParams(): \Generator
     {
         yield 'no table given' => [
             'params' => [],
@@ -85,16 +77,28 @@ public function possibleNoneTriggeringParams(): \Generator
 
     public function testFlushCachesByGroupForMarker(): void
     {
-        $cacheManager = $this->prophesize(CacheManager::class);
-        GeneralUtility::setSingletonInstance(CacheManager::class, $cacheManager->reveal());
+        $connectionPool = self::createMock(ConnectionPool::class);
+        $cacheManager = self::createMock(CacheManager::class);
+        $cacheManager
+            ->expects(self::once())
+            ->method('flushCachesInGroupByTag')
+            ->with('pages', $this->stringStartsWith('tx_variables_key_hash_'))
+        ;
+
+        $dataHandler = self::createStub(Typo3DataHandler::class);
+        $dataHandler->datamap = [
+            'tx_variables_marker' => [
+                1 => [
+                    'marker' => 'TEST',
+                ],
+            ],
+        ];
 
-        $subject = new DataHandler();
+        $subject = new DataHandler($connectionPool, $cacheManager);
         $subject->clearCachePostProc([
             'table' => 'tx_variables_marker',
             'uid' => '1',
             'marker' => 'TEST'
-        ]);
-
-        $cacheManager->flushCachesInGroupByTag('pages', 'tx_variables_key_hash_033bd94b1168d7e4f0d644c3c95e35bf')->shouldBeCalledOnce();
+        ], $dataHandler);
     }
 }
diff --git a/Tests/Functional/Fixtures/Frontend/Rendering.typoscript b/Tests/Functional/Fixtures/Frontend/Rendering.typoscript
index 277f23d..3e97985 100644
--- a/Tests/Functional/Fixtures/Frontend/Rendering.typoscript
+++ b/Tests/Functional/Fixtures/Frontend/Rendering.typoscript
@@ -6,3 +6,7 @@ tt_content.template = TEXT
 tt_content.template.value = <p>{data.bodytext -> f:format.html()}</p>
 
 plugin.tx_variables.persistence.storagePid = 4
+
+lib.parseFunc_RTE {
+    htmlSanitize = 1
+}
diff --git a/Tests/Functional/Frontend/AbstractProcessesMarkersTest.php b/Tests/Functional/Frontend/AbstractProcessesMarkersTestCase.php
similarity index 76%
rename from Tests/Functional/Frontend/AbstractProcessesMarkersTest.php
rename to Tests/Functional/Frontend/AbstractProcessesMarkersTestCase.php
index 332e646..5e45150 100644
--- a/Tests/Functional/Frontend/AbstractProcessesMarkersTest.php
+++ b/Tests/Functional/Frontend/AbstractProcessesMarkersTestCase.php
@@ -23,10 +23,12 @@
 
 namespace Sinso\Variables\Tests\Functional\Frontend;
 
+use TYPO3\CMS\Core\Cache\Backend\Typo3DatabaseBackend;
+use TYPO3\CMS\Core\Utility\ArrayUtility;
 use TYPO3\TestingFramework\Core\Functional\Framework\Frontend\InternalRequest;
 use TYPO3\TestingFramework\Core\Functional\FunctionalTestCase;
 
-abstract class AbstractProcessesMarkersTest extends FunctionalTestCase
+abstract class AbstractProcessesMarkersTestCase extends FunctionalTestCase
 {
     protected array $testExtensionsToLoad = [
         'typo3conf/ext/variables',
@@ -38,6 +40,18 @@ abstract class AbstractProcessesMarkersTest extends FunctionalTestCase
 
     protected function setUp(): void
     {
+        ArrayUtility::mergeRecursiveWithOverrule($this->configurationToUseInTestInstance, [
+            'SYS' => [
+                'caching' => [
+                    'cacheConfigurations' => [
+                        'pages' => [
+                            'backend' => Typo3DatabaseBackend::class,
+                        ],
+                    ],
+                ],
+            ],
+        ]);
+
         parent::setUp();
 
         $this->importDataSet('EXT:variables/Tests/Functional/Fixtures/Frontend/Content.xml');
diff --git a/Tests/Functional/Frontend/BreaksOnInvalidHookTest.php b/Tests/Functional/Frontend/BreaksOnInvalidHookTest.php
index 25cd61f..9d2ae96 100644
--- a/Tests/Functional/Frontend/BreaksOnInvalidHookTest.php
+++ b/Tests/Functional/Frontend/BreaksOnInvalidHookTest.php
@@ -28,7 +28,7 @@
 /**
  * @covers \Sinso\Variables\Service\VariablesService
  */
-class BreaksOnInvalidHookTest extends AbstractProcessesMarkersTest
+class BreaksOnInvalidHookTest extends AbstractProcessesMarkersTestCase
 {
     protected array $configurationToUseInTestInstance = [
         'EXTCONF' => [
diff --git a/Tests/Functional/Frontend/ProcessesMarkersHookTest.php b/Tests/Functional/Frontend/ProcessesMarkersHookTest.php
index 22f0d7c..7e21f82 100644
--- a/Tests/Functional/Frontend/ProcessesMarkersHookTest.php
+++ b/Tests/Functional/Frontend/ProcessesMarkersHookTest.php
@@ -28,7 +28,7 @@
 /**
  * @covers \Sinso\Variables\Hooks\ContentProcessor
  */
-class ProcessesMarkersHookTest extends AbstractProcessesMarkersTest
+class ProcessesMarkersHookTest extends AbstractProcessesMarkersTestCase
 {
     protected array $configurationToUseInTestInstance = [
         'EXTCONF' => [
diff --git a/Tests/Functional/Frontend/ProcessesMarkersTest.php b/Tests/Functional/Frontend/ProcessesMarkersTest.php
index cf07b3e..dd9dc92 100644
--- a/Tests/Functional/Frontend/ProcessesMarkersTest.php
+++ b/Tests/Functional/Frontend/ProcessesMarkersTest.php
@@ -26,7 +26,7 @@
 /**
  * @covers \Sinso\Variables\Hooks\ContentProcessor
  */
-class ProcessesMarkersTest extends AbstractProcessesMarkersTest
+class ProcessesMarkersTest extends AbstractProcessesMarkersTestCase
 {
     public function testNoMarkerAppliedAsNoneExist(): void
     {
diff --git a/composer.json b/composer.json
index 41830c7..7caa296 100644
--- a/composer.json
+++ b/composer.json
@@ -21,7 +21,6 @@
   "require-dev": {
     "rector/rector": "^0.12.23",
     "typo3/testing-framework": "^7.0",
-    "phpspec/prophecy-phpunit": "^2.0",
     "symplify/easy-coding-standard": "^12.3"
   },
   "extra": {