diff --git a/src/CalcWidget.cpp b/src/CalcWidget.cpp
index 69050d7..6e0bef7 100644
--- a/src/CalcWidget.cpp
+++ b/src/CalcWidget.cpp
@@ -26,9 +26,9 @@ CalcWidget::CalcWidget(QWidget *parent)
 
     // validator/locale for input
     QString amount_rx = R"(^\d{0,8}[\.]\d{0,12}$)";
-    QRegExp rx;
+    QRegularExpression rx;
     rx.setPattern(amount_rx);
-    QValidator *validator = new QRegExpValidator(rx, this);
+    QValidator *validator = new QRegularExpressionValidator(rx, this);
     ui->lineFrom->setValidator(validator);
     ui->lineTo->setValidator(validator);
 
diff --git a/src/SendWidget.cpp b/src/SendWidget.cpp
index ee54473..920ec8a 100644
--- a/src/SendWidget.cpp
+++ b/src/SendWidget.cpp
@@ -24,9 +24,9 @@ SendWidget::SendWidget(QSharedPointer<AppContext> ctx, QWidget *parent)
     ui->setupUi(this);
 
     QString amount_rx = R"(^\d{0,8}[\.,]\d{0,12}|(all)$)";
-    QRegExp rx;
+    QRegularExpression rx;
     rx.setPattern(amount_rx);
-    QValidator *validator = new QRegExpValidator(rx, this);
+    QValidator *validator = new QRegularExpressionValidator(rx, this);
     ui->lineAmount->setValidator(validator);
 
     connect(m_ctx.get(), &AppContext::initiateTransaction, this, &SendWidget::onInitiateTransaction);
diff --git a/src/dialog/PaymentRequestDialog.cpp b/src/dialog/PaymentRequestDialog.cpp
index bac57cd..6eeb3b0 100644
--- a/src/dialog/PaymentRequestDialog.cpp
+++ b/src/dialog/PaymentRequestDialog.cpp
@@ -7,7 +7,7 @@
 #include <QClipboard>
 #include <QFileDialog>
 #include <QMessageBox>
-#include <QRegExpValidator>
+#include <QRegularExpressionValidator>
 
 #include "WalletManager.h"
 
@@ -20,9 +20,9 @@ PaymentRequestDialog::PaymentRequestDialog(QWidget *parent, QSharedPointer<AppCo
     ui->setupUi(this);
 
     QString amount_rx = R"(^\d{0,8}[\.]\d{0,12}|(all)$)";
-    QRegExp rx;
+    QRegularExpression rx;
     rx.setPattern(amount_rx);
-    QValidator *validator = new QRegExpValidator(rx, this);
+    QValidator *validator = new QRegularExpressionValidator(rx, this);
     ui->line_amountXMR->setValidator(validator);
 
     connect(ui->line_amountXMR, &QLineEdit::textChanged, this, &PaymentRequestDialog::updatePaymentRequest);
diff --git a/src/libwalletqt/WalletManager.cpp b/src/libwalletqt/WalletManager.cpp
index 07172f7..eabba96 100644
--- a/src/libwalletqt/WalletManager.cpp
+++ b/src/libwalletqt/WalletManager.cpp
@@ -218,8 +218,8 @@ QString WalletManager::displayAmount(quint64 amount, bool trailing_zeroes, int d
     }
 
     if (!trailing_zeroes) {
-        amountStr.remove(QRegExp("0+$"));
-        amountStr.remove(QRegExp("\\.$"));
+        amountStr.remove(QRegularExpression("0+$"));
+        amountStr.remove(QRegularExpression("\\.$"));
     }
 
     return amountStr;
diff --git a/src/model/AddressBookProxyModel.cpp b/src/model/AddressBookProxyModel.cpp
index fbc13be..2e90678 100644
--- a/src/model/AddressBookProxyModel.cpp
+++ b/src/model/AddressBookProxyModel.cpp
@@ -8,8 +8,7 @@ AddressBookProxyModel::AddressBookProxyModel(QObject *parent)
     : QSortFilterProxyModel(parent),
     m_searchRegExp("")
 {
-    m_searchRegExp.setCaseSensitivity(Qt::CaseInsensitive);
-    m_searchRegExp.setPatternSyntax(QRegExp::RegExp);
+    m_searchRegExp.setPatternOptions(QRegularExpression::CaseInsensitiveOption);
 }
 
 bool AddressBookProxyModel::filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const
diff --git a/src/model/AddressBookProxyModel.h b/src/model/AddressBookProxyModel.h
index 52244e3..4649250 100644
--- a/src/model/AddressBookProxyModel.h
+++ b/src/model/AddressBookProxyModel.h
@@ -22,7 +22,7 @@ public slots:
     }
 
 private:
-    QRegExp m_searchRegExp;
+    QRegularExpression m_searchRegExp;
 };
 
 #endif //FEATHER_ADDRESSBOOKPROXYMODEL_H
diff --git a/src/model/SubaddressProxyModel.cpp b/src/model/SubaddressProxyModel.cpp
index 25e7a26..1462b40 100644
--- a/src/model/SubaddressProxyModel.cpp
+++ b/src/model/SubaddressProxyModel.cpp
@@ -10,9 +10,7 @@ SubaddressProxyModel::SubaddressProxyModel(QObject *parent, Subaddress *subaddre
     , m_searchCaseSensitiveRegExp("")
     , m_hidePrimary(hidePrimary)
 {
-    m_searchRegExp.setCaseSensitivity(Qt::CaseInsensitive);
-    m_searchRegExp.setPatternSyntax(QRegExp::FixedString);
-    m_searchCaseSensitiveRegExp.setPatternSyntax(QRegExp::FixedString);
+    m_searchRegExp.setPatternOptions(QRegularExpression::CaseInsensitiveOption);
 }
 
 bool SubaddressProxyModel::filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const
@@ -33,7 +31,7 @@ bool SubaddressProxyModel::filterAcceptsRow(int sourceRow, const QModelIndex &so
         return false;
     }
 
-    if (!m_searchRegExp.isEmpty()) {
+    if (!m_searchRegExp.pattern().isEmpty()) {
         return address.contains(m_searchCaseSensitiveRegExp) || label.contains(m_searchRegExp);
     }
     return (m_showUsed || !isUsed);
diff --git a/src/model/SubaddressProxyModel.h b/src/model/SubaddressProxyModel.h
index 9de57c0..65a8964 100644
--- a/src/model/SubaddressProxyModel.h
+++ b/src/model/SubaddressProxyModel.h
@@ -42,8 +42,8 @@ private:
     Subaddress *m_subaddress;
 
     QStringList m_hiddenAddresses;
-    QRegExp m_searchRegExp;
-    QRegExp m_searchCaseSensitiveRegExp;
+    QRegularExpression m_searchRegExp;
+    QRegularExpression m_searchCaseSensitiveRegExp;
     bool m_showUsed = false;
     bool m_showHidden = false;
     bool m_hidePrimary;
diff --git a/src/model/WalletKeysFilesModel.cpp b/src/model/WalletKeysFilesModel.cpp
index ec4da23..4fe4bdc 100644
--- a/src/model/WalletKeysFilesModel.cpp
+++ b/src/model/WalletKeysFilesModel.cpp
@@ -22,7 +22,7 @@ WalletKeysFile::WalletKeysFile(const QFileInfo &info, int networkType, QString a
 qint64 WalletKeysFile::getModified(const QFileInfo &info) {
     qint64 m = info.lastModified().toSecsSinceEpoch();
 
-    QFileInfo cacheFile = QFileInfo(info.absoluteFilePath().replace(QRegExp(".keys$"), ""));
+    QFileInfo cacheFile = QFileInfo(info.absoluteFilePath().replace(QRegularExpression(".keys$"), ""));
     qint64 cacheLastModified = cacheFile.lastModified().toSecsSinceEpoch();
     if (cacheFile.exists() && cacheLastModified > m) {
         m = cacheLastModified;
@@ -73,8 +73,7 @@ void WalletKeysFilesModel::findWallets() {
     qDebug() << "wallet .keys search initiated";
     auto now = high_resolution_clock::now();
 
-    QRegExp rx("*.keys");
-    rx.setPatternSyntax(QRegExp::Wildcard);
+    QRegularExpression rx(QRegularExpression::wildcardToRegularExpression("*.keys"));
     QStringList walletPaths;
 
     for(auto i = 0; i != m_walletDirectories.length(); i++) {
diff --git a/src/utils/TorManager.cpp b/src/utils/TorManager.cpp
index b3ddf08..5df79e3 100644
--- a/src/utils/TorManager.cpp
+++ b/src/utils/TorManager.cpp
@@ -4,7 +4,6 @@
 #include "utils/TorManager.h"
 
 #include <QScreen>
-#include <QDesktopWidget>
 #include <QDesktopServices>
 #include <QRegularExpression>
 
diff --git a/src/utils/TorManager.h b/src/utils/TorManager.h
index a196d15..aef48cb 100644
--- a/src/utils/TorManager.h
+++ b/src/utils/TorManager.h
@@ -7,7 +7,7 @@
 #include <cstdio>
 #include <cstdlib>
 #include <iostream>
-#include <QRegExp>
+#include <QRegularExpression>
 #include <QtNetwork>
 #include "utils/childproc.h"
 #include "utils/SemanticVersion.h"
diff --git a/src/utils/Utils.cpp b/src/utils/Utils.cpp
index 96e525c..157f415 100644
--- a/src/utils/Utils.cpp
+++ b/src/utils/Utils.cpp
@@ -67,7 +67,7 @@ bool pixmapWrite(const QString &path, const QPixmap &pixmap) {
     return false;
 }
 
-QStringList fileFind(const QRegExp &pattern, const QString &baseDir, int level, int depth, const int maxPerDir) {
+QStringList fileFind(const QRegularExpression &pattern, const QString &baseDir, int level, int depth, const int maxPerDir) {
     // like `find /foo -name -maxdepth 2 "*.jpg"`
     QStringList rtn;
     QDir dir(baseDir);
@@ -83,12 +83,16 @@ QStringList fileFind(const QRegExp &pattern, const QString &baseDir, int level,
         const auto fn = fileInfo.fileName();
         const auto path = fileInfo.filePath();
 
+        QRegularExpression re(QRegularExpression::anchoredPattern(pattern.pattern()));
+        QRegularExpressionMatch match = re.match(fn);
+
         if (fileInfo.isDir()) {
             if (level + 1 <= depth)
                 rtn << fileFind(pattern, path, level + 1, depth, maxPerDir);
         }
-        else if (pattern.exactMatch(fn))
+        else if (match.hasMatch()) {
             rtn << path;
+        }
     }
     return rtn;
 }
diff --git a/src/utils/Utils.h b/src/utils/Utils.h
index 1749160..349bf2f 100644
--- a/src/utils/Utils.h
+++ b/src/utils/Utils.h
@@ -4,7 +4,7 @@
 #ifndef FEATHER_UTILS_H
 #define FEATHER_UTILS_H
 
-#include <QRegExp>
+#include <QRegularExpression>
 #include <QStandardItemModel>
 #include <QApplication>
 #include <QTextCharFormat>
@@ -19,7 +19,7 @@ namespace Utils
     QByteArray fileOpenQRC(const QString &path);
     bool fileWrite(const QString &path, const QString &data);
     bool pixmapWrite(const QString &path, const QPixmap &pixmap);
-    QStringList fileFind(const QRegExp &pattern, const QString &baseDir, int level, int depth, int maxPerDir);
+    QStringList fileFind(const QRegularExpression &pattern, const QString &baseDir, int level, int depth, int maxPerDir);
 
     bool dirExists(const QString &path);
     QString defaultWalletDir();
diff --git a/src/utils/networking.h b/src/utils/networking.h
index 41e96b0..9aab733 100644
--- a/src/utils/networking.h
+++ b/src/utils/networking.h
@@ -4,7 +4,7 @@
 #ifndef FEATHER_NETWORKING_H
 #define FEATHER_NETWORKING_H
 
-#include <QRegExp>
+#include <QRegularExpression>
 #include <QtNetwork>
 #include <QNetworkAccessManager>
 #include <QNetworkReply>
diff --git a/src/utils/nodes.h b/src/utils/nodes.h
index 1cbb298..0477842 100644
--- a/src/utils/nodes.h
+++ b/src/utils/nodes.h
@@ -5,7 +5,7 @@
 #define FEATHER_NODES_H
 
 #include <QTimer>
-#include <QRegExp>
+#include <QRegularExpression>
 #include <QApplication>
 #include <QtNetwork>
 #include <QNetworkAccessManager>
diff --git a/src/utils/os/tails.cpp b/src/utils/os/tails.cpp
index 45caf6c..d53d79b 100644
--- a/src/utils/os/tails.cpp
+++ b/src/utils/os/tails.cpp
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: BSD-3-Clause
 // SPDX-FileCopyrightText: 2020-2022 The Monero Project
 
-#include <QRegExp>
+#include <QRegularExpression>
 #include <QMessageBox>
 
 #include "tails.h"
@@ -50,10 +50,10 @@ QString TailsOS::version()
         return "";
 
     QByteArray data = Utils::fileOpen("/etc/os-release");
-    QRegExp re(R"(TAILS_VERSION_ID="(\d+.\d+))");
-    int pos = re.indexIn(data);
-    if (pos >= 0) {
-        return re.cap(1);
+    QRegularExpression re(R"(TAILS_VERSION_ID="(\d+.\d+))");
+    QRegularExpressionMatch match = re.match(data);
+    if (match.hasMatch()) {
+        return match.captured(1);
     }
     return "";
 }
diff --git a/src/utils/xmrig.cpp b/src/utils/xmrig.cpp
index e623fe5..534a524 100644
--- a/src/utils/xmrig.cpp
+++ b/src/utils/xmrig.cpp
@@ -2,7 +2,6 @@
 // SPDX-FileCopyrightText: 2020-2022 The Monero Project
 
 #include <QScreen>
-#include <QDesktopWidget>
 #include <QDesktopServices>
 
 #include "utils/Utils.h"
diff --git a/src/utils/xmrig.h b/src/utils/xmrig.h
index a3f75e6..c914084 100644
--- a/src/utils/xmrig.h
+++ b/src/utils/xmrig.h
@@ -7,7 +7,7 @@
 #include <cstdio>
 #include <cstdlib>
 #include <iostream>
-#include <QRegExp>
+#include <QRegularExpression>
 #include <QtNetwork>
 #include <QApplication>
 #include <QMainWindow>
diff --git a/src/widgets/RestoreHeightWidget.cpp b/src/widgets/RestoreHeightWidget.cpp
index f6c7cd7..1b4c225 100644
--- a/src/widgets/RestoreHeightWidget.cpp
+++ b/src/widgets/RestoreHeightWidget.cpp
@@ -15,12 +15,12 @@ RestoreHeightWidget::RestoreHeightWidget(QWidget *parent)
 {
     ui->setupUi(this);
 
-    QRegExp yearRe(R"(\d{2,4}-\d{1,2}-\d{1,2})");
-    QValidator *yearValidator = new QRegExpValidator(yearRe, this);
+    QRegularExpression yearRe(R"(\d{2,4}-\d{1,2}-\d{1,2})");
+    QValidator *yearValidator = new QRegularExpressionValidator(yearRe, this);
     ui->line_creationDate->setValidator(yearValidator);
 
-    QRegExp heightRe(R"(\d{7})");
-    QValidator *heightValidator = new QRegExpValidator(heightRe, this);
+    QRegularExpression heightRe(R"(\d{7})");
+    QValidator *heightValidator = new QRegularExpressionValidator(heightRe, this);
     ui->line_restoreHeight->setValidator(heightValidator);
 
     connect(ui->line_creationDate, &QLineEdit::textEdited, this, &RestoreHeightWidget::onCreationDateChanged);
diff --git a/src/wizard/PageSetRestoreHeight.cpp b/src/wizard/PageSetRestoreHeight.cpp
index 8f6690a..b5f44ca 100644
--- a/src/wizard/PageSetRestoreHeight.cpp
+++ b/src/wizard/PageSetRestoreHeight.cpp
@@ -14,12 +14,12 @@ PageSetRestoreHeight::PageSetRestoreHeight(WizardFields *fields, QWidget *parent
 {
     ui->setupUi(this);
 
-    QRegExp yearRe(R"(\d{2,4}-\d{1,2}-\d{1,2})");
-    QValidator *yearValidator = new QRegExpValidator(yearRe, this);
+    QRegularExpression yearRe(R"(\d{2,4}-\d{1,2}-\d{1,2})");
+    QValidator *yearValidator = new QRegularExpressionValidator(yearRe, this);
     ui->line_creationDate->setValidator(yearValidator);
 
-    QRegExp heightRe(R"(\d{7})");
-    QValidator *heightValidator = new QRegExpValidator(heightRe, this);
+    QRegularExpression heightRe(R"(\d{7})");
+    QValidator *heightValidator = new QRegularExpressionValidator(heightRe, this);
     ui->line_restoreHeight->setValidator(heightValidator);
 
     QPixmap pixmap = QPixmap(":/assets/images/unpaid.png");