1 files changed, 1 insertions, 1 deletions
diff --git a/tests/Unit/MonitorTest.php b/tests/Unit/MonitorTest.php
index 4a7a488..296fa3a 100644
--- a/tests/Unit/MonitorTest.php
+++ b/tests/Unit/MonitorTest.php
@@ -78,7 +78,7 @@ class MonitorTest extends TestCase
     /** @var string */
     protected $userId = 'john';
 
-    public function setUp()
+    public function setUp(): void
     {
         parent::setUp();