diff --git a/tests/auto/widgets/graphicsview/qgraphicsproxywidget/tst_qgraphicsproxywidget.cpp b/tests/auto/widgets/graphicsview/qgraphicsproxywidget/tst_qgraphicsproxywidget.cpp
index 896a7e02de..cd4a30c9bf 100644
--- a/tests/auto/widgets/graphicsview/qgraphicsproxywidget/tst_qgraphicsproxywidget.cpp
+++ b/tests/auto/widgets/graphicsview/qgraphicsproxywidget/tst_qgraphicsproxywidget.cpp
@@ -1355,7 +1355,7 @@ void tst_QGraphicsProxyWidget::scrollUpdate()
     view.show();
     QVERIFY(QTest::qWaitForWindowActive(&view));
     QTRY_VERIFY(view.npaints >= 1);
-    QTest::qWait(20);
+    QTest::qWait(150);
     widget->paintEventRegion = QRegion();
     widget->npaints = 0;
     view.paintEventRegion = QRegion();