diff --git a/rules-tests/DeadCode/Rector/ClassMethod/RemoveUnusedPromotedPropertyRector/Fixture/skip_public_some_property_readonly.php.inc b/rules-tests/DeadCode/Rector/ClassMethod/RemoveUnusedPromotedPropertyRector/Fixture/skip_public_some_property_readonly.php.inc
new file mode 100644
index 00000000000..cc17bc37988
--- /dev/null
+++ b/rules-tests/DeadCode/Rector/ClassMethod/RemoveUnusedPromotedPropertyRector/Fixture/skip_public_some_property_readonly.php.inc
@@ -0,0 +1,12 @@
+<?php
+
+namespace Rector\Tests\DeadCode\Rector\ClassMethod\RemoveUnusedPromotedPropertyRector\Fixture;
+
+use stdClass;
+
+class SkipPublicSomePropertyReadonly
+{
+    public function __construct(public readonly stdClass $someUnusedDependency)
+    {
+    }
+}
diff --git a/rules-tests/DeadCode/Rector/ClassMethod/RemoveUnusedPromotedPropertyRector/Fixture/some_private_roperty_readonly.php.inc b/rules-tests/DeadCode/Rector/ClassMethod/RemoveUnusedPromotedPropertyRector/Fixture/some_private_roperty_readonly.php.inc
new file mode 100644
index 00000000000..68c76c55e97
--- /dev/null
+++ b/rules-tests/DeadCode/Rector/ClassMethod/RemoveUnusedPromotedPropertyRector/Fixture/some_private_roperty_readonly.php.inc
@@ -0,0 +1,29 @@
+<?php
+
+namespace Rector\Tests\DeadCode\Rector\ClassMethod\RemoveUnusedPromotedPropertyRector\Fixture;
+
+use stdClass;
+
+class SomePrivatePropertyReadonly
+{
+    public function __construct(private readonly stdClass $someUnusedDependency)
+    {
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\Tests\DeadCode\Rector\ClassMethod\RemoveUnusedPromotedPropertyRector\Fixture;
+
+use stdClass;
+
+class SomePrivatePropertyReadonly
+{
+    public function __construct()
+    {
+    }
+}
+
+?>
diff --git a/rules/DeadCode/Rector/ClassMethod/RemoveUnusedPromotedPropertyRector.php b/rules/DeadCode/Rector/ClassMethod/RemoveUnusedPromotedPropertyRector.php
index 538d6c8c13d..014c88cd8ae 100644
--- a/rules/DeadCode/Rector/ClassMethod/RemoveUnusedPromotedPropertyRector.php
+++ b/rules/DeadCode/Rector/ClassMethod/RemoveUnusedPromotedPropertyRector.php
@@ -13,6 +13,8 @@
 use Rector\Core\Rector\AbstractRector;
 use Rector\Core\ValueObject\MethodName;
 use Rector\Core\ValueObject\PhpVersionFeature;
+use Rector\Core\ValueObject\Visibility;
+use Rector\Privatization\NodeManipulator\VisibilityManipulator;
 use Rector\VersionBonding\Contract\MinPhpVersionInterface;
 use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
 use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
@@ -25,6 +27,7 @@ final class RemoveUnusedPromotedPropertyRector extends AbstractRector implements
     public function __construct(
         private readonly PropertyFetchFinder $propertyFetchFinder,
         private readonly PropertyManipulator $propertyManipulator,
+        private readonly VisibilityManipulator $visibilityManipulator
     ) {
     }
 
@@ -93,7 +96,7 @@ public function refactor(Node $node): ?Node
 
         foreach ($node->getParams() as $param) {
             // only private local scope; removing public property might be dangerous
-            if ($param->flags !== Class_::MODIFIER_PRIVATE) {
+            if (! $this->visibilityManipulator->hasVisibility($param, Visibility::PRIVATE)) {
                 continue;
             }