diff --git a/src/Gui/DlgCreateNewPreferencePackImp.cpp b/src/Gui/DlgCreateNewPreferencePackImp.cpp
index e32efbae5b..8e41ddffd2 100644
--- a/src/Gui/DlgCreateNewPreferencePackImp.cpp
+++ b/src/Gui/DlgCreateNewPreferencePackImp.cpp
@@ -48,8 +48,8 @@ DlgCreateNewPreferencePackImp::DlgCreateNewPreferencePackImp(QWidget* parent)
 {
     ui->setupUi(this);
 
-    QRegExp validNames(QString::fromUtf8("[^/\\\\?%*:|\"<>]+"));
-    _nameValidator.setRegExp(validNames);
+    QRegularExpression validNames(QString::fromUtf8("[^/\\\\?%*:|\"<>]+"));
+    _nameValidator.setRegularExpression(validNames);
     ui->lineEdit->setValidator(&_nameValidator);
     ui->buttonBox->button(QDialogButtonBox::Ok)->setEnabled(false);
     connect(ui->treeWidget, &QTreeWidget::itemChanged, this, &DlgCreateNewPreferencePackImp::onItemChanged);
diff --git a/src/Gui/DlgCreateNewPreferencePackImp.h b/src/Gui/DlgCreateNewPreferencePackImp.h
index d154d31808..f322a6cd81 100644
--- a/src/Gui/DlgCreateNewPreferencePackImp.h
+++ b/src/Gui/DlgCreateNewPreferencePackImp.h
@@ -26,7 +26,7 @@
 
 #include <memory>
 #include <QDialog>
-#include <QRegExpValidator>
+#include <QRegularExpressionValidator>
 
 #include "PreferencePackManager.h"
 
@@ -72,7 +72,7 @@ private:
     std::unique_ptr<Ui_DlgCreateNewPreferencePack> ui;
     std::map<std::string, QTreeWidgetItem*> _groups;
     std::vector<PreferencePackManager::TemplateFile> _templates;
-    QRegExpValidator _nameValidator;
+    QRegularExpressionValidator _nameValidator;
     std::vector<std::string> _existingPackNames;
 };
 
diff --git a/src/Gui/QtAll.h b/src/Gui/QtAll.h
index bae0c25606..b22fcfc1c2 100644
--- a/src/Gui/QtAll.h
+++ b/src/Gui/QtAll.h
@@ -40,7 +40,6 @@
 #include <QPointer>
 #include <QProcess>
 #include <qrect.h>
-#include <qregexp.h>
 #include <QRegularExpression>
 #include <QRegularExpressionMatch>
 #include <QRegularExpressionMatchIterator>