diff --git a/tests/Session/ArraySessionHandlerTest.php b/tests/Session/ArraySessionHandlerTest.php
index e6d29714c31e..8511c56b02cf 100644
--- a/tests/Session/ArraySessionHandlerTest.php
+++ b/tests/Session/ArraySessionHandlerTest.php
@@ -100,6 +100,7 @@ public function test_it_cleans_up_old_sessions()
 
         $this->assertSame(0, $handler->gc(300));
 
+        Carbon::setTestNow(Carbon::now());
         $handler->write('foo', 'bar');
         $this->assertSame(0, $handler->gc(300));
         $this->assertSame('bar', $handler->read('foo'));