diff --git a/config/contao.php b/config/contao.php
index 7c63131..c953c66 100644
--- a/config/contao.php
+++ b/config/contao.php
@@ -164,7 +164,7 @@
     $ecsConfig->rule(\PhpCsFixer\Fixer\LanguageConstruct\NoUnsetOnPropertyFixer::class);
     $ecsConfig->rule(\PhpCsFixer\Fixer\ControlStructure\NoUselessElseFixer::class);
     $ecsConfig->rule(\PhpCsFixer\Fixer\ReturnNotation\NoUselessReturnFixer::class);
-    $ecsConfig->ruleWithConfiguration(\PhpCsFixer\Fixer\FunctionNotation\NullableTypeDeclarationForDefaultNullValueFixer::class, ['use_nullable_type_declaration' => false]);
+    $ecsConfig->rule(\PhpCsFixer\Fixer\FunctionNotation\NullableTypeDeclarationForDefaultNullValueFixer::class);
     $ecsConfig->rule(\SlevomatCodingStandard\Sniffs\TypeHints\NullTypeHintOnLastPositionSniff::class);
     $ecsConfig->rule(\PhpCsFixer\Fixer\ClassNotation\OrderedClassElementsFixer::class);
     $ecsConfig->rule(\Symplify\CodingStandard\Fixer\Commenting\ParamReturnAndVarTagMalformsFixer::class);