diff --git a/rector.php b/rector.php
index e96182f..59c071c 100644
--- a/rector.php
+++ b/rector.php
@@ -14,7 +14,6 @@
 use Rector\DeadCode\Rector\If_\RemoveAlwaysTrueIfConditionRector;
 use Rector\DeadCode\Rector\If_\RemoveDeadInstanceOfRector;
 use Rector\DeadCode\Rector\StaticCall\RemoveParentCallWithoutParentRector;
-use Rector\Php71\Rector\FuncCall\CountOnNullRector;
 use Rector\Php81\Rector\Array_\FirstClassCallableRector;
 use Rector\Php81\Rector\FuncCall\NullToStrictStringFuncCallArgRector;
 use Rector\PHPUnit\Set\PHPUnitSetList;
@@ -27,9 +26,6 @@
         __DIR__ . '/tests',
     ]);
 
-    // register a single rule
-    // $rectorConfig->rule(\Rector\CodeQuality\Rector\Class_\InlineConstructorDefaultToPropertyRector\InlineConstructorDefaultToPropertyRector::class);
-
     $rectorConfig->sets([
         SetList::DEAD_CODE,
         LevelSetList::UP_TO_PHP_81,
@@ -43,7 +39,6 @@
             FirstClassCallableRector::class,
             RemoveAlwaysTrueIfConditionRector::class,
             RemoveParentCallWithoutParentRector::class,
-            CountOnNullRector::class,
         ],
     );
 };