Index: sources/device/DeviceView.cpp
===================================================================
diff -u -r3e682c5afdadcf4dd2006e3d975fbee58e48619e -rc2f474ff07c98aa350c445a2474976a3cf985f40
--- sources/device/DeviceView.cpp	(.../DeviceView.cpp)	(revision 3e682c5afdadcf4dd2006e3d975fbee58e48619e)
+++ sources/device/DeviceView.cpp	(.../DeviceView.cpp)	(revision c2f474ff07c98aa350c445a2474976a3cf985f40)
@@ -16,7 +16,11 @@
 
 // Qt
 #include <QDateTime>
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
 #include <QRegularExpression>
+#else
+#include <QRegExp>
+#endif
 
 // Project
 #include "ApplicationController.h"
@@ -405,7 +409,11 @@
                         if ( field.isEmpty() ) {
                             ssidInfo.mSupported = false;
                         } else {
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
                             ssidInfo.mSupported = field.remove(QRegularExpression("(WPA[23])")).trimmed().isEmpty();
+#else
+                            ssidInfo.mSupported = field.remove(QRegExp("(WPA[23])")).trimmed().isEmpty();
+#endif
                         }
                     break;