diff --git a/rules/Carbon/Rector/New_/DateTimeInstanceToCarbonRector.php b/rules/Carbon/Rector/New_/DateTimeInstanceToCarbonRector.php
index 584ac758435..1867e1ad5be 100644
--- a/rules/Carbon/Rector/New_/DateTimeInstanceToCarbonRector.php
+++ b/rules/Carbon/Rector/New_/DateTimeInstanceToCarbonRector.php
@@ -72,7 +72,7 @@ public function refactor(Node $node): ?Node
         return null;
     }
 
-    public function refactorWithClass(New_ $new, string $className): MethodCall|StaticCall|null
+    private function refactorWithClass(New_ $new, string $className): MethodCall|StaticCall|null
     {
         // no arg? ::now()
         $carbonFullyQualified = new FullyQualified($className);