diff --git a/src/network/ssl/qsslsocket_qt.cpp b/src/network/ssl/qsslsocket_qt.cpp
index 9ff9a66c05..2f5d692162 100644
--- a/src/network/ssl/qsslsocket_qt.cpp
+++ b/src/network/ssl/qsslsocket_qt.cpp
@@ -39,6 +39,7 @@
 #include <QtCore/qbytearray.h>
 #include <QtCore/qdatastream.h>
 #include <QtCore/qmessageauthenticationcode.h>
+#include <QtCore/qrandom.h>
 
 #include "qsslsocket_p.h"
 #include "qasn1element_p.h"
@@ -138,7 +139,7 @@ static QByteArray _q_PKCS12_salt()
     QByteArray salt;
     salt.resize(8);
     for (int i = 0; i < salt.size(); ++i)
-        salt[i] = (qrand() & 0xff);
+        salt[i] = (QRandomGenerator::global()->generate() & 0xff);
     return salt;
 }
 
diff --git a/src/plugins/platforms/xcb/nativepainting/qpaintengine_x11.cpp b/src/plugins/platforms/xcb/nativepainting/qpaintengine_x11.cpp
index 82b6d60bcd..aa91d9266b 100644
--- a/src/plugins/platforms/xcb/nativepainting/qpaintengine_x11.cpp
+++ b/src/plugins/platforms/xcb/nativepainting/qpaintengine_x11.cpp
@@ -37,6 +37,8 @@
 **
 ****************************************************************************/
 
+#include <QtCore/qrandom.h>
+
 #include <private/qpixmapcache_p.h>
 #include <private/qpaintengine_p.h>
 #include <private/qpolygonclipper_p.h>
@@ -504,7 +506,7 @@ static Picture getPatternFill(int screen, const QBrush &b)
             return X11->pattern_fills[i].picture;
     }
     // none found, replace one
-    int i = qrand() % 16;
+    int i = QRandomGenerator::global()->generate() % 16;
 
     if (X11->pattern_fills[i].screen != screen && X11->pattern_fills[i].picture) {
     XRenderFreePicture (QXcbX11Info::display(), X11->pattern_fills[i].picture);
diff --git a/src/plugins/platforms/xcb/nativepainting/qxcbnativepainting.cpp b/src/plugins/platforms/xcb/nativepainting/qxcbnativepainting.cpp
index 57b1882e4b..6a483fc7e5 100644
--- a/src/plugins/platforms/xcb/nativepainting/qxcbnativepainting.cpp
+++ b/src/plugins/platforms/xcb/nativepainting/qxcbnativepainting.cpp
@@ -37,6 +37,8 @@
 **
 ****************************************************************************/
 
+#include <QtCore/qrandom.h>
+
 #include "qxcbconnection.h"
 #include "qcolormap_x11_p.h"
 #include "qxcbnativepainting.h"
@@ -279,7 +281,7 @@ Picture QXcbX11Data::getSolidFill(int screen, const QColor &c)
             return X11->solid_fills[i].picture;
     }
     // none found, replace one
-    int i = qrand() % 16;
+    int i = QRandomGenerator::global()->generate() % 16;
 
     if (X11->solid_fills[i].screen != screen && X11->solid_fills[i].picture) {
         XRenderFreePicture (X11->display, X11->solid_fills[i].picture);