diff --git a/src/internalwindow.cpp b/src/internalwindow.cpp
index 50bce553eb..aad66d6266 100644
--- a/src/internalwindow.cpp
+++ b/src/internalwindow.cpp
@@ -119,7 +119,14 @@ bool InternalWindow::eventFilter(QObject *watched, QEvent *event)
             setSkipCloseAnimation(m_handle->property(s_skipClosePropertyName).toBool());
         }
         if (pe->propertyName() == s_shadowEnabledPropertyName) {
-            updateShadow();
+            // Some dialog e.g. Plasma::Dialog may update shadow in the middle of rendering.
+            // The opengl context changed by updateShadow may break the QML Window rendering
+            // and cause crash.
+            QMetaObject::invokeMethod(
+                this, [this]() {
+                    updateShadow();
+                },
+                Qt::QueuedConnection);
         }
         if (pe->propertyName() == "kwin_windowType") {
             m_windowType = m_handle->property("kwin_windowType").value<NET::WindowType>();