diff --git a/lib/SystemTag/SystemTagObjectMapperWithoutActivityFactory.php b/lib/SystemTag/SystemTagObjectMapperWithoutActivityFactory.php
index 20720130..b708a7b9 100644
--- a/lib/SystemTag/SystemTagObjectMapperWithoutActivityFactory.php
+++ b/lib/SystemTag/SystemTagObjectMapperWithoutActivityFactory.php
@@ -4,9 +4,10 @@
 
 use OC\SystemTag\SystemTagObjectMapper;
 use OCP\EventDispatcher\Event;
-use OCP\EventDispatcher\IEventDispatcher;
 use OCP\IDBConnection;
 use OCP\SystemTag\ISystemTagManager;
+use Symfony\Component\EventDispatcher\EventDispatcherInterface;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 
 class SystemTagObjectMapperWithoutActivityFactory
 {
@@ -18,39 +19,51 @@ public static function createSilentSystemTagObjectMapper(IDBConnection $connecti
 		return new SystemTagObjectMapper($connection, $tagManager, self::createFakeEventDispatcher());
 	}
 
-	private static function createFakeEventDispatcher(): IEventDispatcher
+	private static function createFakeEventDispatcher(): EventDispatcherInterface
 	{
-		return new class implements IEventDispatcher {
-			public function addListener(string $eventName, callable $listener, int $priority = 0): void
-			{
-				// DUMMY
-			}
-
-			public function removeListener(string $eventName, callable $listener): void
-			{
-				// DUMMY
-			}
-
-			public function addServiceListener(string $eventName, string $className, int $priority = 0): void
-			{
-				// DUMMY
-			}
-
-			public function hasListeners(string $eventName): bool
-			{
-				// DUMMY
-				return false;
-			}
-
-			public function dispatch(string $eventName, Event $event): void
-			{
-				// DUMMY
-			}
-
-			public function dispatchTyped(Event $event): void
-			{
-				// DUMMY
-			}
-		};
+		return new class implements EventDispatcherInterface {
+
+            public function addListener(string $eventName, callable $listener, int $priority = 0)
+            {
+                // DUMMY
+            }
+
+            public function addSubscriber(EventSubscriberInterface $subscriber)
+            {
+                // DUMMY
+            }
+
+            public function removeListener(string $eventName, callable $listener)
+            {
+                // DUMMY
+            }
+
+            public function removeSubscriber(EventSubscriberInterface $subscriber)
+            {
+                // DUMMY
+            }
+
+            public function getListeners(?string $eventName = null)
+            {
+                // DUMMY
+            }
+
+            public function dispatch(object $event, ?string $eventName = null): object
+            {
+                // DUMMY
+                return new Event();
+            }
+
+            public function getListenerPriority(string $eventName, callable $listener)
+            {
+                // DUMMY
+            }
+
+            public function hasListeners(?string $eventName = null)
+            {
+                // DUMMY
+                return false;
+            }
+        };
 	}
 }