diff --git a/composer.json b/composer.json
index 1fb20657027ac26b344921d1c792c280d0574224..59fee2be50aca50918bad2bdb3f17fe60e29c3d4 100644
--- a/composer.json
+++ b/composer.json
@@ -113,7 +113,7 @@
 		"php-webdriver/webdriver": "^1.14.0",
 		"phpstan/phpstan": "^1.10.48",
 		"phpstan/phpstan-phpunit": "^1.3.15",
-		"phpunit/phpunit": "^10.4.0",
+		"phpunit/phpunit": "^10.5.5",
 		"sokil/php-isocodes-db-i18n": "^4.0.17",
 		"symfony/translation": "^6.4",
 		"typo3/testing-framework": "dev-main",
diff --git a/composer.lock b/composer.lock
index bfdaa1e55dd5b96ecb82991ee25251489950d4be..1c7a923f814ced3817d5f1bae0362bda26443c63 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "d59a3d500e83b2d30c3beb89702dcbea",
+    "content-hash": "8bef16b007137faad31df5fb41e821df",
     "packages": [
         {
             "name": "bacon/bacon-qr-code",
@@ -7052,16 +7052,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "10.4.0",
+            "version": "10.5.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "9784e877e3700de37475545bdbdce8383ff53d25"
+                "reference": "ed21115d505b4b4f7dc7b5651464e19a2c7f7856"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/9784e877e3700de37475545bdbdce8383ff53d25",
-                "reference": "9784e877e3700de37475545bdbdce8383ff53d25",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/ed21115d505b4b4f7dc7b5651464e19a2c7f7856",
+                "reference": "ed21115d505b4b4f7dc7b5651464e19a2c7f7856",
                 "shasum": ""
             },
             "require": {
@@ -7101,7 +7101,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-main": "10.4-dev"
+                    "dev-main": "10.5-dev"
                 }
             },
             "autoload": {
@@ -7133,7 +7133,7 @@
             "support": {
                 "issues": "https://github.com/sebastianbergmann/phpunit/issues",
                 "security": "https://github.com/sebastianbergmann/phpunit/security/policy",
-                "source": "https://github.com/sebastianbergmann/phpunit/tree/10.4.0"
+                "source": "https://github.com/sebastianbergmann/phpunit/tree/10.5.5"
             },
             "funding": [
                 {
@@ -7149,7 +7149,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2023-10-06T03:41:22+00:00"
+            "time": "2023-12-27T15:13:52+00:00"
         },
         {
             "name": "psy/psysh",
@@ -8851,12 +8851,12 @@
             "source": {
                 "type": "git",
                 "url": "https://github.com/TYPO3/testing-framework.git",
-                "reference": "a0ccebcddbc9ac34024d4edcf4165dc145e15e56"
+                "reference": "a6f63d180637bf78edc4720ff9a733ec34275b4b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/TYPO3/testing-framework/zipball/a0ccebcddbc9ac34024d4edcf4165dc145e15e56",
-                "reference": "a0ccebcddbc9ac34024d4edcf4165dc145e15e56",
+                "url": "https://api.github.com/repos/TYPO3/testing-framework/zipball/a6f63d180637bf78edc4720ff9a733ec34275b4b",
+                "reference": "a6f63d180637bf78edc4720ff9a733ec34275b4b",
                 "shasum": ""
             },
             "require": {
@@ -8915,9 +8915,9 @@
             "support": {
                 "general": "https://typo3.org/support/",
                 "issues": "https://github.com/TYPO3/testing-framework/issues",
-                "source": "https://github.com/TYPO3/testing-framework/tree/8.0.7"
+                "source": "https://github.com/TYPO3/testing-framework/tree/8.0.8"
             },
-            "time": "2023-11-23T13:51:56+00:00"
+            "time": "2023-12-28T13:04:55+00:00"
         }
     ],
     "aliases": [],
diff --git a/typo3/sysext/core/Tests/Unit/Error/ErrorHandlerTest.php b/typo3/sysext/core/Tests/Unit/Error/ErrorHandlerTest.php
index 63f1deed5cd02e961a9c175046c9dff13e3032c1..d537921e0a1169cd706b05cb9535b0f05a404c97 100644
--- a/typo3/sysext/core/Tests/Unit/Error/ErrorHandlerTest.php
+++ b/typo3/sysext/core/Tests/Unit/Error/ErrorHandlerTest.php
@@ -17,6 +17,9 @@ declare(strict_types=1);
 
 namespace TYPO3\CMS\Core\Tests\Unit\Error;
 
+use PHPUnit\Framework\Attributes\DataProvider;
+use PHPUnit\Framework\Attributes\Test;
+use PHPUnit\Framework\Attributes\WithoutErrorHandler;
 use Psr\Log\LoggerInterface;
 use Psr\Log\LoggerTrait;
 use Psr\Log\LogLevel;
@@ -64,6 +67,9 @@ final class ErrorHandlerTest extends UnitTestCase
         };
     }
 
+    #[WithoutErrorHandler]
+    #[Test]
+    #[DataProvider('errorTests')]
     /**
      * @test
      * @dataProvider errorTests