diff --git a/tests/lib/Files/FilesystemTest.php b/tests/lib/Files/FilesystemTest.php
index fb9dee150518c766deb04dcac10e9646e46f3428..04eafc99f3606f0c36e417aac9fcbf38547b0514 100644
--- a/tests/lib/Files/FilesystemTest.php
+++ b/tests/lib/Files/FilesystemTest.php
@@ -376,7 +376,7 @@ class FilesystemTest extends \Test\TestCase {
 
 		\OC_User::clearBackends();
 		// needed for loginName2UserName mapping
-		$userBackend = $this->getMock('\OC\User\Database');
+		$userBackend = $this->createMock(\OC\User\Database::class);
 		\OC::$server->getUserManager()->registerBackend($userBackend);
 
 		$userBackend->expects($this->once())
diff --git a/tests/lib/Files/Node/RootTest.php b/tests/lib/Files/Node/RootTest.php
index 35ba8a6c223c8b3b671cb20fffcfc23b28ef1fe5..534dd3303284c82d3ffe94325464c8e94b51bd5a 100644
--- a/tests/lib/Files/Node/RootTest.php
+++ b/tests/lib/Files/Node/RootTest.php
@@ -141,7 +141,7 @@ class RootTest extends \Test\TestCase {
 
 		\OC_User::clearBackends();
 		// needed for loginName2UserName mapping
-		$userBackend = $this->getMock('\OC\User\Database');
+		$userBackend = $this->createMock(\OC\User\Database::class);
 		\OC::$server->getUserManager()->registerBackend($userBackend);
 
 		$userBackend->expects($this->any())