diff --git a/cmake/version.cmake b/cmake/version.cmake
index 403a23a..09eb0fd 100644
--- a/cmake/version.cmake
+++ b/cmake/version.cmake
@@ -4,7 +4,7 @@
 
 set (QT_VTK_MAJOR_VERSION "8")
 set (QT_VTK_MINOR_VERSION "8")
-set (QT_VTK_RELEASE_VERSION "3")
+set (QT_VTK_RELEASE_VERSION "4")
 set (QT_VTK_VERSION ${QT_VTK_MAJOR_VERSION}.${QT_VTK_MINOR_VERSION}.${QT_VTK_RELEASE_VERSION})
 
 
diff --git a/src/QtVtk/QtVtkGraphicWidget.cpp b/src/QtVtk/QtVtkGraphicWidget.cpp
index 452cbe6..67eaa1b 100644
--- a/src/QtVtk/QtVtkGraphicWidget.cpp
+++ b/src/QtVtk/QtVtkGraphicWidget.cpp
@@ -126,7 +126,7 @@ void QtVtkGraphicWidget::SetRenderWindow (vtkRenderWindow* window)	// v 8.1.1
 
 vtkRenderWindow* QtVtkGraphicWidget::GetRenderWindow ( )	// v 8.1.1
 {
-	QVTKOpenGLNativeWidget::renderWindow ( );
+	return QVTKOpenGLNativeWidget::renderWindow ( );
 }	// QtVtkGraphicWidget::GetRenderWindow
 
 #endif
diff --git a/versions.txt b/versions.txt
index e47ba99..5c804ee 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,5 +1,11 @@
 A FAIRE : tester le vtkIntersectionPolyDataFilter de VTK 7, voir si de base il propose les services attendus (Inner, ...).
 
+Version 8.8.4 : 31/10/25
+===============
+
+Correctif QtVtkGraphicWidget::GetRenderWindow ( ) en VTK >= 9.
+
+
 Version 8.8.3 : 24/10/25
 ===============