diff --git a/core/tests/Drupal/Tests/Core/UnroutedUrlTest.php b/core/tests/Drupal/Tests/Core/UnroutedUrlTest.php
index 68ea2fd29f7ad51da741c96b8155336921b87bd7..066ad3a39b4e5d35834a05c4127a95470bfbb27d 100644
--- a/core/tests/Drupal/Tests/Core/UnroutedUrlTest.php
+++ b/core/tests/Drupal/Tests/Core/UnroutedUrlTest.php
@@ -124,7 +124,6 @@ public function providerFromInvalidUri() {
       // Disallowed characters in the authority (host name) that are valid
       // elsewhere in the path.
       ['base://(:;2&+h^'],
-      ['base://AKI@&hO@'],
     ];
   }