1 files changed, 3 insertions, 2 deletions
diff --git a/examples/charts/openglseries/datasource.cpp b/examples/charts/openglseries/datasource.cpp
index 5f554500..af2dc10e 100644
--- a/examples/charts/openglseries/datasource.cpp
+++ b/examples/charts/openglseries/datasource.cpp
@@ -29,6 +29,7 @@
 
 #include "datasource.h"
 #include <QtCore/QtMath>
+#include <QtCore/QRandomGenerator>
 
 QT_CHARTS_USE_NAMESPACE
 
@@ -111,8 +112,8 @@ void DataSource::generateData(int seriesCount, int rowCount, int colCount)
                 qreal x(0);
                 qreal y(0);
                 // data with sin + random component
-                y = height + (yMultiplier * qSin(3.14159265358979 / 50 * j)
-                              + (yMultiplier * (qreal) rand() / (qreal) RAND_MAX));
+                y = height + (yMultiplier * qSin(M_PI / 50 * j)
+                              + (yMultiplier * QRandomGenerator::global()->generateDouble()));
                 // 0.000001 added to make values logaxis compatible
                 x = 0.000001 + 20.0 * (qreal(j) / qreal(colCount)) + (xAdjustment * qreal(i));
                 points.append(QPointF(x, y));