1 files changed, 2 insertions, 2 deletions
diff --git a/tests/PHPUnit/Integration/Concurrency/LockBackend/MysqlLockBackendTest.php b/tests/PHPUnit/Integration/Concurrency/LockBackend/MysqlLockBackendTest.php
index 432491591b..8c2c9e1517 100644
--- a/tests/PHPUnit/Integration/Concurrency/LockBackend/MysqlLockBackendTest.php
+++ b/tests/PHPUnit/Integration/Concurrency/LockBackend/MysqlLockBackendTest.php
@@ -21,7 +21,7 @@ class MysqlLockBackendTest extends IntegrationTestCase
     private $backend;
     private $key = 'testKeyValueKey';
 
-    public function setUp()
+    public function setUp(): void
     {
         if (!$this->hasDependencies()) {
             parent::setUp();
@@ -34,7 +34,7 @@ class MysqlLockBackendTest extends IntegrationTestCase
         $this->backend = $this->createMysqlBackend();
     }
 
-    public function tearDown()
+    public function tearDown(): void
     {
         $GLOBALS['PIWIK_TRACKER_MODE'] = false;
         Db::destroyDatabaseObject();