diff --git a/tests/Unit/EventSubscriber/HookEventBridgeTest.php b/tests/Unit/EventSubscriber/HookEventBridgeTest.php
index 3e0a71ce3d..b0b503cafb 100644
--- a/tests/Unit/EventSubscriber/HookEventBridgeTest.php
+++ b/tests/Unit/EventSubscriber/HookEventBridgeTest.php
@@ -58,6 +58,7 @@ class HookEventBridgeTest extends TestCase
 		$event = new DataFilterEvent('test', ['original']);
 
 		$reflectionProperty = new \ReflectionProperty(HookEventBridge::class, 'callHook');
+		$reflectionProperty->setAccessible(true);
 
 		$reflectionProperty->setValue(null, function (string $name, $data) {
 			$this->assertSame('test', $name);
@@ -87,6 +88,7 @@ class HookEventBridgeTest extends TestCase
 		$event = new HtmlFilterEvent($name, 'original');
 
 		$reflectionProperty = new \ReflectionProperty(HookEventBridge::class, 'callHook');
+		$reflectionProperty->setAccessible(true);
 
 		$reflectionProperty->setValue(null, function (string $name, $data) use($expected) {
 			$this->assertSame($expected, $name);