diff --git a/src/QGCTemporaryFile.cc b/src/QGCTemporaryFile.cc
index 0a1e9883fcc4ff4f3ada4948f185d4e269feaa46..400801fc8b2970379be15072afcfc01c3f39922f 100644
--- a/src/QGCTemporaryFile.cc
+++ b/src/QGCTemporaryFile.cc
@@ -18,6 +18,7 @@
 #include "QGCTemporaryFile.h"
 
 #include <QDir>
+#include <QRandomGenerator>
 #include <QStandardPaths>
 
 QGCTemporaryFile::QGCTemporaryFile(const QString& fileTemplate, QObject* parent) :
@@ -40,7 +41,7 @@ bool QGCTemporaryFile::open(QFile::OpenMode openMode)
     do {
         QString uniqueStr;
         for (int i=0; i<6; i++) {
-            uniqueStr += rgDigits[qrand() % 10];
+            uniqueStr += rgDigits[QRandomGenerator::global()->generate() % 10];
         }
         
         if (_template.contains("XXXXXX")) {