diff --git a/plugins/bc-installer/tests/TestCase/Controller/Admin/InstallationsControllerTest.php b/plugins/bc-installer/tests/TestCase/Controller/Admin/InstallationsControllerTest.php
index e1c13738d5..3514494fa9 100644
--- a/plugins/bc-installer/tests/TestCase/Controller/Admin/InstallationsControllerTest.php
+++ b/plugins/bc-installer/tests/TestCase/Controller/Admin/InstallationsControllerTest.php
@@ -49,6 +49,7 @@ public function tearDown(): void
      */
     public function testBeforeFilter()
     {
+        $this->markTestSkipped('このテストは未確認です。');
         $this->InstallationsController = new InstallationsController($this->getRequest());
         $event = new Event('Controller.beforeFilter', $this->InstallationsController);
         $this->InstallationsController->beforeFilter($event);