diff --git a/tests/Reports/Stubs/SiteSummaryExtensionStub.php b/tests/Reports/Stubs/SiteSummaryExtensionStub.php
index b5c1c54..1bd7f1f 100644
--- a/tests/Reports/Stubs/SiteSummaryExtensionStub.php
+++ b/tests/Reports/Stubs/SiteSummaryExtensionStub.php
@@ -7,7 +7,7 @@
 
 class SiteSummaryExtensionStub extends Extension implements TestOnly
 {
-    public function updateAlerts(&$alerts)
+    protected function updateAlerts(&$alerts)
     {
         $alerts[] = '<p><strong>Alert! Alert!</strong> <br />Sound the alarm!</p>';
     }