diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7ff952df..68453872 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -13,6 +13,7 @@ set(QTERMINAL_VERSION "1.3.0")
 
 option(UPDATE_TRANSLATIONS "Update source translation translations/*.ts files" OFF)
 option(BUILD_TESTS "Builds tests" ON)
+option(USE_QT6 "Build with Qt 6 instead of Qt 5" OFF)
 
 if(APPLE)
     option(APPLEBUNDLE "Build as qterminal.app bundle" ON)
@@ -21,24 +22,38 @@ endif()
 # we need qpa/qplatformnativeinterface.h for global shortcut
 
 # Minimum Versions
-set(LXQTBT_MINIMUM_VERSION "0.13.0")
 set(QTERMWIDGET_MINIMUM_VERSION "1.3.0")
-set(QT_MINIMUM_VERSION "5.15.0")
+if(NOT USE_QT6)
+	set(LXQTBT_MINIMUM_VERSION "0.13.0")
+	set(QT_MINIMUM_VERSION "5.15.0")
+	set(QT_MAJOR_VERSION "5")
+else()
+	set(LXQTBT_MINIMUM_VERSION "2.0.0")
+	set(QT_MINIMUM_VERSION "6.3.0")
+	set(QT_MAJOR_VERSION "6")
+endif()
 
-find_package(Qt5Gui ${QT_MINIMUM_VERSION} REQUIRED)
-find_package(Qt5LinguistTools ${QT_MINIMUM_VERSION} REQUIRED)
-find_package(Qt5Widgets ${QT_MINIMUM_VERSION} REQUIRED)
+find_package(Qt${QT_MAJOR_VERSION}Core ${QT_MINIMUM_VERSION} REQUIRED)
+find_package(Qt${QT_MAJOR_VERSION}Gui ${QT_MINIMUM_VERSION} REQUIRED)
+find_package(Qt${QT_MAJOR_VERSION}LinguistTools ${QT_MINIMUM_VERSION} REQUIRED)
+find_package(Qt${QT_MAJOR_VERSION}Widgets ${QT_MINIMUM_VERSION} REQUIRED)
 if(UNIX)
-    find_package(Qt5DBus ${QT_MINIMUM_VERSION} REQUIRED)
-    if (NOT APPLE)
+    find_package(Qt${QT_MAJOR_VERSION}DBus ${QT_MINIMUM_VERSION} REQUIRED)
+    if(NOT APPLE AND QT_MAJOR_VERSION EQUAL 5)
         find_package(Qt5X11Extras ${QT_MINIMUM_VERSION} REQUIRED)
-    endif (NOT APPLE)
+    elseif(QT_MAJOR_VERSION EQUAL 6)
+        find_package(Qt6 COMPONENTS Core Core5Compat REQUIRED)
+    endif()
+endif()
+find_package(QTermWidget${QT_MAJOR_VERSION} ${QTERMWIDGET_MINIMUM_VERSION} REQUIRED)
+if(QT_MAJOR_VERSION EQUAL 5)
+    find_package(lxqt-build-tools ${LXQTBT_MINIMUM_VERSION} REQUIRED)
+else()
+    find_package(lxqt2-build-tools ${LXQTBT_MINIMUM_VERSION} REQUIRED)
 endif()
-find_package(QTermWidget5 ${QTERMWIDGET_MINIMUM_VERSION} REQUIRED)
-find_package(lxqt-build-tools ${LXQTBT_MINIMUM_VERSION} REQUIRED)
 
 if (BUILD_TESTS)
-    find_package(Qt5 ${QT_MINIMUM_VERSION} CONFIG REQUIRED Test)
+    find_package(Qt${QT_MAJOR_VERSION} ${QT_MINIMUM_VERSION} CONFIG REQUIRED Test)
 endif()
 
 include(LXQtPreventInSourceBuilds)
@@ -47,13 +62,23 @@ pkg_check_modules(LIBCANBERRA libcanberra)
 include(LXQtTranslateTs)
 include(LXQtTranslateDesktop)
 include(LXQtCompilerSettings NO_POLICY_SCOPE)
-message(STATUS "Qt version: ${Qt5Core_VERSION}")
+message(STATUS "Qt version: ${Qt${QT_MAJOR_VERSION}Core_VERSION}")
 
 # TODO remove Qxt
 message(STATUS "Using bundled Qxt...")
 set(QXT_INCLUDE_DIRS "${CMAKE_CURRENT_SOURCE_DIR}/src/third-party")
 
 
+if(QT_MAJOR_VERSION EQUAL 5)
+    find_path(QTERMWIDGET5_INCLUDE_DIR NAMES qtermwidget5/qtermwidget.h)
+    add_definitions(-DUSE_QTERMWIDGET5)
+    include_directories(${QTERMWIDGET5_INCLUDE_DIR})
+elseif(QT_MAJOR_VERSION EQUAL 6)
+    find_path(QTERMWIDGET6_INCLUDE_DIR NAMES qtermwidget6/qtermwidget.h)
+    add_definitions(-DUSE_QTERMWIDGET6)
+    include_directories(${QTERMWIDGET6_INCLUDE_DIR})
+endif()
+
 if(APPLE)
    find_library(CARBON_LIBRARY Carbon REQUIRED)
    message(STATUS "CARBON_LIBRARY: ${CARBON_LIBRARY}")
@@ -98,14 +123,24 @@ set(QTERM_MOC_SRC
     src/tab-switcher.h
 )
 
-if (Qt5DBus_FOUND)
+if (Qt${QT_MAJOR_VERSION}DBus_FOUND)
     add_definitions(-DHAVE_QDBUS)
-    QT5_ADD_DBUS_ADAPTOR(QTERM_SRC src/org.lxqt.QTerminal.Window.xml mainwindow.h MainWindow)
-    QT5_ADD_DBUS_ADAPTOR(QTERM_SRC src/org.lxqt.QTerminal.Tab.xml termwidgetholder.h TermWidgetHolder)
-    QT5_ADD_DBUS_ADAPTOR(QTERM_SRC src/org.lxqt.QTerminal.Terminal.xml termwidget.h TermWidget)
-    QT5_ADD_DBUS_ADAPTOR(QTERM_SRC src/org.lxqt.QTerminal.Process.xml qterminalapp.h QTerminalApp)
+
+    macro(ADD_DBUS_ADAPTOR_FOR_VERSION)
+        if("${QT_MAJOR_VERSION}" STREQUAL "5")
+            QT5_ADD_DBUS_ADAPTOR(${ARGV})
+        elseif("${QT_MAJOR_VERSION}" STREQUAL "6")
+            QT6_ADD_DBUS_ADAPTOR(${ARGV})
+        endif()
+    endmacro()
+
+    ADD_DBUS_ADAPTOR_FOR_VERSION(QTERM_SRC src/org.lxqt.QTerminal.Window.xml mainwindow.h MainWindow)
+    ADD_DBUS_ADAPTOR_FOR_VERSION(QTERM_SRC src/org.lxqt.QTerminal.Tab.xml termwidgetholder.h TermWidgetHolder)
+    ADD_DBUS_ADAPTOR_FOR_VERSION(QTERM_SRC src/org.lxqt.QTerminal.Terminal.xml termwidget.h TermWidget)
+    ADD_DBUS_ADAPTOR_FOR_VERSION(QTERM_SRC src/org.lxqt.QTerminal.Process.xml qterminalapp.h QTerminalApp)
+
     set(QTERM_MOC_SRC ${QTERM_MOC_SRC} src/dbusaddressable.h)
-    message(STATUS "Building with Qt5DBus support")
+    message(STATUS "Building with Qt${QT_MAJOR_VERSION}DBus support")
 endif()
 
 if(NOT QXT_FOUND)
@@ -132,9 +167,34 @@ set(QTERM_RCC_SRC
     src/icons.qrc
 )
 
-qt5_wrap_ui( QTERM_UI ${QTERM_UI_SRC} )
-qt5_wrap_cpp( QTERM_MOC ${QTERM_MOC_SRC} )
-qt5_add_resources( QTERM_RCC ${QTERM_RCC_SRC} )
+macro(WRAP_UI_FOR_VERSION)
+    if("${QT_MAJOR_VERSION}" STREQUAL "5")
+        qt5_wrap_ui(${ARGV})
+    elseif("${QT_MAJOR_VERSION}" STREQUAL "6")
+        qt6_wrap_ui(${ARGV})
+    endif()
+endmacro()
+
+macro(WRAP_CPP_FOR_VERSION)
+    if("${QT_MAJOR_VERSION}" STREQUAL "5")
+        qt5_wrap_cpp(${ARGV})
+    elseif("${QT_MAJOR_VERSION}" STREQUAL "6")
+        qt6_wrap_cpp(${ARGV})
+    endif()
+endmacro()
+
+macro(ADD_RESOURCES_FOR_VERSION)
+    if("${QT_MAJOR_VERSION}" STREQUAL "5")
+        qt5_add_resources(${ARGV})
+    elseif("${QT_MAJOR_VERSION}" STREQUAL "6")
+        qt6_add_resources(${ARGV})
+    endif()
+endmacro()
+
+WRAP_UI_FOR_VERSION(QTERM_UI ${QTERM_UI_SRC})
+WRAP_CPP_FOR_VERSION(QTERM_MOC ${QTERM_MOC_SRC})
+ADD_RESOURCES_FOR_VERSION(QTERM_RCC ${QTERM_RCC_SRC})
+
 lxqt_translate_ts(QTERM_QM
     UPDATE_TRANSLATIONS
         ${UPDATE_TRANSLATIONS}
@@ -202,21 +262,23 @@ add_executable(${EXE_NAME} ${GUI_TYPE}
 )
 
 target_link_libraries(${EXE_NAME}
-    Qt5::Gui
-    qtermwidget5
+    Qt${QT_MAJOR_VERSION}::Core
+    Qt${QT_MAJOR_VERSION}::Gui
+    Qt${QT_MAJOR_VERSION}::Widgets
+    qtermwidget${QT_MAJOR_VERSION}
     util
 )
 if(QXT_FOUND)
     target_link_libraries(${EXE_NAME} ${QXT_CORE_LIB} ${QXT_GUI_LIB})
 endif()
 
-if (Qt5DBus_FOUND)
-    target_link_libraries(${EXE_NAME} ${Qt5DBus_LIBRARIES})
+if (Qt${QT_MAJOR_VERSION}DBus_FOUND)
+    target_link_libraries(${EXE_NAME} ${Qt${QT_MAJOR_VERSION}DBus_LIBRARIES})
 endif()
 
 if(APPLE)
     target_link_libraries(${EXE_NAME} ${CARBON_LIBRARY})
-elseif(UNIX)
+elseif(UNIX AND QT_MAJOR_VERSION EQUAL 5)
     target_link_libraries(${EXE_NAME} Qt5::X11Extras)
 endif()
 
diff --git a/src/dbusaddressable.cpp b/src/dbusaddressable.cpp
index b03a4f2f..54754e29 100644
--- a/src/dbusaddressable.cpp
+++ b/src/dbusaddressable.cpp
@@ -20,6 +20,6 @@ DBusAddressable::DBusAddressable(const QString& prefix)
 {
     #ifdef HAVE_QDBUS
     QString uuidString = QUuid::createUuid().toString();
-    m_path = prefix + QLatin1Char('/') + uuidString.replace(QRegExp(QStringLiteral("[\\{\\}\\-]")), QString());
+    m_path = prefix + QLatin1Char('/') + uuidString.replace(QRegularExpression(QStringLiteral("[\\{\\}\\-]")), QString());
     #endif
 }
diff --git a/src/dbusaddressable.h b/src/dbusaddressable.h
index 430f713b..b3463eab 100644
--- a/src/dbusaddressable.h
+++ b/src/dbusaddressable.h
@@ -1,6 +1,7 @@
 #ifndef DBUSADDRESSABLE_H
 #define DBUSADDRESSABLE_H
 
+#include <QRegularExpression>
 #include <QString>
 #ifdef HAVE_QDBUS
 #include <QtDBus/QtDBus>
@@ -31,4 +32,4 @@ template <class AClass, class WClass> void registerAdapter(WClass *obj)
 #endif
 
 
-#endif
\ No newline at end of file
+#endif
diff --git a/src/main.cpp b/src/main.cpp
index dee72544..8d63ced0 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -169,7 +169,6 @@ int main(int argc, char *argv[])
 
     // icons
     /* setup our custom icon theme if there is no system theme (OS X, Windows) */
-    QCoreApplication::instance()->setAttribute(Qt::AA_UseHighDpiPixmaps); //Fix for High-DPI systems
     if (QIcon::themeName().isEmpty())
         QIcon::setThemeName(QStringLiteral("QTerminal"));
 
@@ -177,7 +176,7 @@ int main(int argc, char *argv[])
 
     // install the translations built-into Qt itself
     QTranslator qtTranslator;
-    qtTranslator.load(QStringLiteral("qt_") + QLocale::system().name(), QLibraryInfo::location(QLibraryInfo::TranslationsPath));
+    qtTranslator.load(QStringLiteral("qt_") + QLocale::system().name(), QLibraryInfo::path(QLibraryInfo::TranslationsPath));
     app->installTranslator(&qtTranslator);
 
     QTranslator translator;
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 18042ef2..ecd01c1d 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -24,6 +24,7 @@
 #include <QTimer>
 #include <functional>
 #include <QGuiApplication>
+#include <QActionGroup>
 
 #ifdef HAVE_QDBUS
 #include <QtDBus/QtDBus>
diff --git a/src/tabwidget.cpp b/src/tabwidget.cpp
index 31bbc41a..213df2ed 100644
--- a/src/tabwidget.cpp
+++ b/src/tabwidget.cpp
@@ -21,6 +21,7 @@
 #include <QColorDialog>
 #include <QMouseEvent>
 #include <QMenu>
+#include <QActionGroup>
 
 #include "mainwindow.h"
 #include "termwidgetholder.h"
diff --git a/src/terminalconfig.cpp b/src/terminalconfig.cpp
index 1497a298..46241365 100644
--- a/src/terminalconfig.cpp
+++ b/src/terminalconfig.cpp
@@ -82,14 +82,14 @@ TerminalConfig TerminalConfig::fromDbus(const QHash<QString,QVariant> &termArgsC
 
 static QString variantToString(const QVariant& variant, QString &defaultVal)
 {
-    if (variant.type() == QVariant::String)
+    if (variant.typeId() == QMetaType::type("QString"))
         return qvariant_cast<QString>(variant);
     return defaultVal;
 }
 
 static QStringList variantToStringList(const QVariant& variant, QStringList &defaultVal)
 {
-    if (variant.type() == QVariant::StringList)
+    if (variant.typeId() == QMetaType::type("QStringList"))
         return qvariant_cast<QStringList>(variant);
     return defaultVal;
 }
diff --git a/src/termwidget.h b/src/termwidget.h
index 01c356ce..6d080d36 100644
--- a/src/termwidget.h
+++ b/src/termwidget.h
@@ -19,7 +19,12 @@
 #ifndef TERMWIDGET_H
 #define TERMWIDGET_H
 
-#include <qtermwidget.h>
+#ifdef USE_QTERMWIDGET5
+    #include <qtermwidget5/qtermwidget.h>
+#elif defined(USE_QTERMWIDGET6)
+    #include <qtermwidget6/qtermwidget.h>
+#endif
+
 #include "terminalconfig.h"
 
 #include <QAction>
diff --git a/src/third-party/qxtglobalshortcut_p.h b/src/third-party/qxtglobalshortcut_p.h
index 45cc2b2f..6d0e3c2e 100644
--- a/src/third-party/qxtglobalshortcut_p.h
+++ b/src/third-party/qxtglobalshortcut_p.h
@@ -58,7 +58,7 @@ class QxtGlobalShortcutPrivate : public QxtPrivate<QxtGlobalShortcut>
     static bool error;
 #ifndef Q_OS_MAC
     static int ref;
-    bool nativeEventFilter(const QByteArray & eventType, void * message, long * result) override;
+    bool nativeEventFilter(const QByteArray &eventType, void *message, qintptr *result);
 #endif
 
     static void activateShortcut(quint32 nativeKey, quint32 nativeMods);
diff --git a/src/third-party/qxtglobalshortcut_x11.cpp b/src/third-party/qxtglobalshortcut_x11.cpp
index ecaf5c34..5ace2752 100644
--- a/src/third-party/qxtglobalshortcut_x11.cpp
+++ b/src/third-party/qxtglobalshortcut_x11.cpp
@@ -38,7 +38,6 @@
 
 #include <QGuiApplication>
 #include <QVector>
-#include <QtX11Extras/QX11Info>
 
 #include <xcb/xcb.h>
 #include <X11/Xlib.h>
@@ -95,7 +94,8 @@ class QxtX11Data {
 public:
     QxtX11Data()
     {
-        m_display = QX11Info::display();
+        auto *x11Application = qGuiApp->nativeInterface<QNativeInterface::QX11Application>();
+        m_display = x11Application ? x11Application->display() : nullptr;
     }
 
     bool isValid()
@@ -149,7 +149,7 @@ class QxtX11Data {
 } // namespace
 
 bool QxtGlobalShortcutPrivate::nativeEventFilter(const QByteArray & eventType,
-    void *message, long *result)
+    void *message, qintptr *result)
 {
     Q_UNUSED(result);
 
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 5f332a04..4df9caa3 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -1,7 +1,24 @@
-qt5_wrap_cpp(QTERM_TEST_MOC qterminal_test.h)
+# Check if QT_MAJOR_VERSION was not defined
+if(NOT DEFINED QT_MAJOR_VERSION)
+    message(FATAL_ERROR "QT_MAJOR_VERSION not set.")
+endif()
+
+# Use appropriate wrap_cpp command based on QT_MAJOR_VERSION
+if("${QT_MAJOR_VERSION}" STREQUAL "5")
+    qt5_wrap_cpp(QTERM_TEST_MOC qterminal_test.h)
+    set(QT_TEST_LIB Qt5::Test)
+elseif("${QT_MAJOR_VERSION}" STREQUAL "6")
+    qt6_wrap_cpp(QTERM_TEST_MOC qterminal_test.h)
+    set(QT_TEST_LIB Qt6::Test)
+else()
+    message(FATAL_ERROR "Unsupported QT_MAJOR_VERSION: ${QT_MAJOR_VERSION}")
+endif()
+
 add_executable(qterminal_test
     qterminal_test.cpp
     ${CMAKE_SOURCE_DIR}/src/qterminalutils.cpp
     ${QTERM_TEST_MOC})
-target_link_libraries(qterminal_test Qt5::Test)
+
+target_link_libraries(qterminal_test ${QT_TEST_LIB})
+
 add_test(NAME qterminal_test COMMAND qterminal_test)