diff --git a/Classes/Utils/DummyView.php b/Classes/Utils/DummyView.php
index ca39d9b..896efa1 100644
--- a/Classes/Utils/DummyView.php
+++ b/Classes/Utils/DummyView.php
@@ -6,6 +6,7 @@ namespace DigiComp\FluidRenderFunctions\Utils;
 
 use TYPO3Fluid\Fluid\View\ViewInterface;
 
+// @deprecated: drop this class, as soon as Flow 6.3 support drops
 class DummyView implements ViewInterface
 {
     public function assign($key, $value)
diff --git a/Classes/Utils/NodeRenderTransfer.php b/Classes/Utils/NodeRenderTransfer.php
index 068d605..7285c99 100644
--- a/Classes/Utils/NodeRenderTransfer.php
+++ b/Classes/Utils/NodeRenderTransfer.php
@@ -28,7 +28,14 @@ class NodeRenderTransfer implements InvokeRenderFunctionInterface
 
     public function __invoke($object): string
     {
-        $context = new RenderingContext(new DummyView());
+        // @deprecated: drop the condition, if compatibility to Flow 6.3 can be dropped
+        $reflector = new \ReflectionClass(RenderingContext::class);
+        $constructor = $reflector->getConstructor();
+        if ($constructor->getNumberOfRequiredParameters() > 0) {
+            $context = new RenderingContext(new DummyView());
+        } else {
+            $context = new RenderingContext();
+        }
         $context->getVariableProvider()->add($this->subjectName, $object);
         return \trim($this->node->evaluate($context));
     }