1 files changed, 1 insertions, 1 deletions

diff --git a/tests/bookmark/BookmarkFileServiceTest.php b/tests/bookmark/BookmarkFileServiceTest.php
index a4ec1013..aed4dc76 100644
--- a/tests/bookmark/BookmarkFileServiceTest.php
+++ b/tests/bookmark/BookmarkFileServiceTest.php
@@ -66,7 +66,7 @@ class BookmarkFileServiceTest extends TestCase
      *
      * Resets test data for each test
      */
-    protected function setUp()
+    protected function setUp(): void
     {
         if (file_exists(self::$testDatastore)) {
             unlink(self::$testDatastore);