diff --git a/tests/PHPUnit/Fixtures/FewVisitsWithSetVisitorIdAndUserId.php b/tests/PHPUnit/Fixtures/FewVisitsWithSetVisitorIdAndUserId.php
index 7076ecf7fbc3dd6698d2d481cbc790775dd37dc3..30accf676deff468e75d529384866484ed890cfc 100644
--- a/tests/PHPUnit/Fixtures/FewVisitsWithSetVisitorIdAndUserId.php
+++ b/tests/PHPUnit/Fixtures/FewVisitsWithSetVisitorIdAndUserId.php
@@ -179,6 +179,7 @@ class FewVisitsWithSetVisitorId extends Fixture
         $t->setUrl('http://example.org/index.htm');
         $userId = 'new-user-id@one-weeklater';
         $t->setUserId($userId);
+        $t->setVisitorId('6ccebef4faef4969'); // this should be ignored and User ID prevail
         self::checkResponse($t->doTrackPageView('A page view by ' . $userId));
         $t->setForceVisitDateTime($oneWeekLater->addHour(0.8)->getDatetime());
 
diff --git a/tests/PHPUnit/UI b/tests/PHPUnit/UI
index 27e0ac1bb3c011a5ff33753192f289b0f453fe56..2d9a1e519c5e3d80ec22aad76aa178ca2097b925 160000
--- a/tests/PHPUnit/UI
+++ b/tests/PHPUnit/UI
@@ -1 +1 @@
-Subproject commit 27e0ac1bb3c011a5ff33753192f289b0f453fe56
+Subproject commit 2d9a1e519c5e3d80ec22aad76aa178ca2097b925