diff --git a/tests/DataTest.php b/tests/DataTest.php
index f5723104f..34428a381 100644
--- a/tests/DataTest.php
+++ b/tests/DataTest.php
@@ -31,7 +31,7 @@
 use OCP\IUserSession;
 use OCP\Util;
 use PHPUnit\Framework\MockObject\MockObject;
-use Psr\Log\LoggerInterface;
+use Psr\Log\NullLogger;
 
 /**
  * Class DataTest
@@ -62,7 +62,7 @@ protected function setUp(): void {
 		$activityManager = $this->createMock(IManager::class);
 		$this->dbConnection = \OC::$server->get(IDBConnection::class);
 		$this->realActivityManager = \OC::$server->get(IManager::class);
-		$this->logger = $this->createMock(LoggerInterface::class);
+		$this->logger = \OC::$server->get(NullLogger::class);
 
 		$this->data = new Data(
 			$activityManager,