diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0bf2165..cf3dddf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,14 +19,14 @@ jobs:
       matrix:
         qt-version: [5.15.2, 6.4.1]
         library-type: [shared, static]
-        platform: [windows-latest, macos-latest] # ubuntu-latest
+        platform: [windows-latest, ubuntu-latest, macos-latest]
         include:
           - platform: windows-latest
             CC: cl
             CXX: cl
-          #- platform: ubuntu-latest
-          #  CC: gcc
-          #  CXX: g++
+          - platform: ubuntu-latest
+            CC: gcc
+            CXX: g++
           - platform: macos-latest
             CC: clang
             CXX: clang++
diff --git a/include/FramelessHelper/Core/chromepalette.h b/include/FramelessHelper/Core/chromepalette.h
index 1121ce9..46a2cae 100644
--- a/include/FramelessHelper/Core/chromepalette.h
+++ b/include/FramelessHelper/Core/chromepalette.h
@@ -121,7 +121,7 @@ Q_SIGNALS:
     void chromeButtonColorChanged();
 
 private:
-    std::unique_ptr<ChromePalettePrivate> d_ptr = nullptr;
+    QScopedPointer<ChromePalettePrivate> d_ptr;
 };
 
 FRAMELESSHELPER_END_NAMESPACE
diff --git a/include/FramelessHelper/Core/framelessmanager.h b/include/FramelessHelper/Core/framelessmanager.h
index e493fe6..098cd74 100644
--- a/include/FramelessHelper/Core/framelessmanager.h
+++ b/include/FramelessHelper/Core/framelessmanager.h
@@ -62,7 +62,7 @@ Q_SIGNALS:
     void wallpaperChanged();
 
 private:
-    std::unique_ptr<FramelessManagerPrivate> d_ptr = nullptr;
+    QScopedPointer<FramelessManagerPrivate> d_ptr;
 };
 
 FRAMELESSHELPER_END_NAMESPACE
diff --git a/include/FramelessHelper/Core/micamaterial.h b/include/FramelessHelper/Core/micamaterial.h
index 75d96d9..030763c 100644
--- a/include/FramelessHelper/Core/micamaterial.h
+++ b/include/FramelessHelper/Core/micamaterial.h
@@ -65,7 +65,7 @@ Q_SIGNALS:
     void shouldRedraw();
 
 private:
-    std::unique_ptr<MicaMaterialPrivate> d_ptr = nullptr;
+    QScopedPointer<MicaMaterialPrivate> d_ptr;
 };
 
 FRAMELESSHELPER_END_NAMESPACE
diff --git a/include/FramelessHelper/Core/windowborderpainter.h b/include/FramelessHelper/Core/windowborderpainter.h
index f2cbb91..b9bb52c 100644
--- a/include/FramelessHelper/Core/windowborderpainter.h
+++ b/include/FramelessHelper/Core/windowborderpainter.h
@@ -78,7 +78,7 @@ Q_SIGNALS:
     void shouldRepaint();
 
 private:
-    std::unique_ptr<WindowBorderPainterPrivate> d_ptr = nullptr;
+    QScopedPointer<WindowBorderPainterPrivate> d_ptr;
 };
 
 FRAMELESSHELPER_END_NAMESPACE
diff --git a/include/FramelessHelper/Quick/framelessquickhelper.h b/include/FramelessHelper/Quick/framelessquickhelper.h
index 719a475..ce775da 100644
--- a/include/FramelessHelper/Quick/framelessquickhelper.h
+++ b/include/FramelessHelper/Quick/framelessquickhelper.h
@@ -101,7 +101,7 @@ Q_SIGNALS:
     void ready();
 
 private:
-    std::unique_ptr<FramelessQuickHelperPrivate> d_ptr = nullptr;
+    QScopedPointer<FramelessQuickHelperPrivate> d_ptr;
 };
 
 FRAMELESSHELPER_END_NAMESPACE
diff --git a/include/FramelessHelper/Quick/private/framelessquickapplicationwindow_p.h b/include/FramelessHelper/Quick/private/framelessquickapplicationwindow_p.h
index 91e2d6b..8c52a27 100644
--- a/include/FramelessHelper/Quick/private/framelessquickapplicationwindow_p.h
+++ b/include/FramelessHelper/Quick/private/framelessquickapplicationwindow_p.h
@@ -77,7 +77,7 @@ Q_SIGNALS:
     void fullScreenChanged();
 
 private:
-    std::unique_ptr<FramelessQuickApplicationWindowPrivate> d_ptr = nullptr;
+    QScopedPointer<FramelessQuickApplicationWindowPrivate> d_ptr;
 };
 
 FRAMELESSHELPER_END_NAMESPACE
diff --git a/include/FramelessHelper/Quick/private/framelessquickwindow_p.h b/include/FramelessHelper/Quick/private/framelessquickwindow_p.h
index 726a448..3643c22 100644
--- a/include/FramelessHelper/Quick/private/framelessquickwindow_p.h
+++ b/include/FramelessHelper/Quick/private/framelessquickwindow_p.h
@@ -77,7 +77,7 @@ Q_SIGNALS:
     void fullScreenChanged();
 
 private:
-    std::unique_ptr<FramelessQuickWindowPrivate> d_ptr = nullptr;
+    QScopedPointer<FramelessQuickWindowPrivate> d_ptr;
 };
 
 FRAMELESSHELPER_END_NAMESPACE
diff --git a/include/FramelessHelper/Quick/quickimageitem.h b/include/FramelessHelper/Quick/quickimageitem.h
index e37ec1d..3dafbd1 100644
--- a/include/FramelessHelper/Quick/quickimageitem.h
+++ b/include/FramelessHelper/Quick/quickimageitem.h
@@ -61,7 +61,7 @@ Q_SIGNALS:
     void sourceChanged();
 
 private:
-    std::unique_ptr<QuickImageItemPrivate> d_ptr = nullptr;
+    QScopedPointer<QuickImageItemPrivate> d_ptr;
 };
 
 FRAMELESSHELPER_END_NAMESPACE
diff --git a/include/FramelessHelper/Quick/quickmicamaterial.h b/include/FramelessHelper/Quick/quickmicamaterial.h
index ebc05f3..106bfea 100644
--- a/include/FramelessHelper/Quick/quickmicamaterial.h
+++ b/include/FramelessHelper/Quick/quickmicamaterial.h
@@ -53,7 +53,7 @@ protected:
     void componentComplete() override;
 
 private:
-    std::unique_ptr<QuickMicaMaterialPrivate> d_ptr = nullptr;
+    QScopedPointer<QuickMicaMaterialPrivate> d_ptr;
 };
 
 FRAMELESSHELPER_END_NAMESPACE
diff --git a/include/FramelessHelper/Quick/quickwindowborder.h b/include/FramelessHelper/Quick/quickwindowborder.h
index 6441f04..db4335f 100644
--- a/include/FramelessHelper/Quick/quickwindowborder.h
+++ b/include/FramelessHelper/Quick/quickwindowborder.h
@@ -87,7 +87,7 @@ Q_SIGNALS:
     void nativeBorderChanged();
 
 private:
-    std::unique_ptr<QuickWindowBorderPrivate> d_ptr = nullptr;
+    QScopedPointer<QuickWindowBorderPrivate> d_ptr;
 };
 
 FRAMELESSHELPER_END_NAMESPACE
diff --git a/include/FramelessHelper/Widgets/framelessdialog.h b/include/FramelessHelper/Widgets/framelessdialog.h
index aa48352..04a18c3 100644
--- a/include/FramelessHelper/Widgets/framelessdialog.h
+++ b/include/FramelessHelper/Widgets/framelessdialog.h
@@ -44,7 +44,7 @@ public:
     ~FramelessDialog() override;
 
 private:
-    std::unique_ptr<FramelessDialogPrivate> d_ptr = nullptr;
+    QScopedPointer<FramelessDialogPrivate> d_ptr;
 };
 
 FRAMELESSHELPER_END_NAMESPACE
diff --git a/include/FramelessHelper/Widgets/framelessmainwindow.h b/include/FramelessHelper/Widgets/framelessmainwindow.h
index 62a26f4..b27a3b9 100644
--- a/include/FramelessHelper/Widgets/framelessmainwindow.h
+++ b/include/FramelessHelper/Widgets/framelessmainwindow.h
@@ -59,7 +59,7 @@ Q_SIGNALS:
     void zoomedChanged();
 
 private:
-    std::unique_ptr<FramelessMainWindowPrivate> d_ptr = nullptr;
+    QScopedPointer<FramelessMainWindowPrivate> d_ptr;
 };
 
 FRAMELESSHELPER_END_NAMESPACE
diff --git a/include/FramelessHelper/Widgets/framelesswidget.h b/include/FramelessHelper/Widgets/framelesswidget.h
index fc800cf..c299e3d 100644
--- a/include/FramelessHelper/Widgets/framelesswidget.h
+++ b/include/FramelessHelper/Widgets/framelesswidget.h
@@ -59,7 +59,7 @@ Q_SIGNALS:
     void zoomedChanged();
 
 private:
-    std::unique_ptr<FramelessWidgetPrivate> d_ptr = nullptr;
+    QScopedPointer<FramelessWidgetPrivate> d_ptr;
 };
 
 FRAMELESSHELPER_END_NAMESPACE
diff --git a/include/FramelessHelper/Widgets/framelesswidgetshelper.h b/include/FramelessHelper/Widgets/framelesswidgetshelper.h
index 68e2c38..d5b1ddc 100644
--- a/include/FramelessHelper/Widgets/framelesswidgetshelper.h
+++ b/include/FramelessHelper/Widgets/framelesswidgetshelper.h
@@ -88,7 +88,7 @@ Q_SIGNALS:
     void ready();
 
 private:
-    std::unique_ptr<FramelessWidgetsHelperPrivate> d_ptr = nullptr;
+    QScopedPointer<FramelessWidgetsHelperPrivate> d_ptr;
 };
 
 FRAMELESSHELPER_END_NAMESPACE
diff --git a/include/FramelessHelper/Widgets/standardsystembutton.h b/include/FramelessHelper/Widgets/standardsystembutton.h
index 8330b23..bacd796 100644
--- a/include/FramelessHelper/Widgets/standardsystembutton.h
+++ b/include/FramelessHelper/Widgets/standardsystembutton.h
@@ -100,7 +100,7 @@ Q_SIGNALS:
     void iconSize2Changed();
 
 private:
-    std::unique_ptr<StandardSystemButtonPrivate> d_ptr = nullptr;
+    QScopedPointer<StandardSystemButtonPrivate> d_ptr;
 };
 
 FRAMELESSHELPER_END_NAMESPACE
diff --git a/include/FramelessHelper/Widgets/standardtitlebar.h b/include/FramelessHelper/Widgets/standardtitlebar.h
index 33876aa..041ba9d 100644
--- a/include/FramelessHelper/Widgets/standardtitlebar.h
+++ b/include/FramelessHelper/Widgets/standardtitlebar.h
@@ -98,7 +98,7 @@ Q_SIGNALS:
     void titleFontChanged();
 
 private:
-    std::unique_ptr<StandardTitleBarPrivate> d_ptr = nullptr;
+    QScopedPointer<StandardTitleBarPrivate> d_ptr;
 };
 
 FRAMELESSHELPER_END_NAMESPACE
diff --git a/src/core/chromepalette.cpp b/src/core/chromepalette.cpp
index 56be7d0..dffbe4d 100644
--- a/src/core/chromepalette.cpp
+++ b/src/core/chromepalette.cpp
@@ -138,7 +138,7 @@ void ChromePalettePrivate::refresh()
 }
 
 ChromePalette::ChromePalette(QObject *parent) :
-    QObject(parent), d_ptr(std::make_unique<ChromePalettePrivate>(this))
+    QObject(parent), d_ptr(new ChromePalettePrivate(this))
 {
 }
 
diff --git a/src/core/framelessmanager.cpp b/src/core/framelessmanager.cpp
index de517dc..7503137 100644
--- a/src/core/framelessmanager.cpp
+++ b/src/core/framelessmanager.cpp
@@ -371,7 +371,7 @@ void FramelessManagerPrivate::initialize()
 }
 
 FramelessManager::FramelessManager(QObject *parent) :
-    QObject(parent), d_ptr(std::make_unique<FramelessManagerPrivate>(this))
+    QObject(parent), d_ptr(new FramelessManagerPrivate(this))
 {
 }
 
diff --git a/src/core/micamaterial.cpp b/src/core/micamaterial.cpp
index a354748..f5b6cc8 100644
--- a/src/core/micamaterial.cpp
+++ b/src/core/micamaterial.cpp
@@ -664,7 +664,7 @@ void MicaMaterialPrivate::prepareGraphicsResources()
 }
 
 MicaMaterial::MicaMaterial(QObject *parent)
-    : QObject(parent), d_ptr(std::make_unique<MicaMaterialPrivate>(this))
+    : QObject(parent), d_ptr(new MicaMaterialPrivate(this))
 {
 }
 
diff --git a/src/core/windowborderpainter.cpp b/src/core/windowborderpainter.cpp
index f2256b6..16e9a1d 100644
--- a/src/core/windowborderpainter.cpp
+++ b/src/core/windowborderpainter.cpp
@@ -174,7 +174,7 @@ void WindowBorderPainterPrivate::initialize()
 }
 
 WindowBorderPainter::WindowBorderPainter(QObject *parent)
-    : QObject(parent), d_ptr(std::make_unique<WindowBorderPainterPrivate>(this))
+    : QObject(parent), d_ptr(new WindowBorderPainterPrivate(this))
 {
 }
 
diff --git a/src/quick/framelessquickapplicationwindow.cpp b/src/quick/framelessquickapplicationwindow.cpp
index cef3029..a7ef082 100644
--- a/src/quick/framelessquickapplicationwindow.cpp
+++ b/src/quick/framelessquickapplicationwindow.cpp
@@ -170,7 +170,7 @@ void FramelessQuickApplicationWindowPrivate::initialize()
 }
 
 FramelessQuickApplicationWindow::FramelessQuickApplicationWindow(QWindow *parent)
-    : QQuickApplicationWindow(parent), d_ptr(std::make_unique<FramelessQuickApplicationWindowPrivate>(this))
+    : QQuickApplicationWindow(parent), d_ptr(new FramelessQuickApplicationWindowPrivate(this))
 {
 }
 
diff --git a/src/quick/framelessquickhelper.cpp b/src/quick/framelessquickhelper.cpp
index 06a3ddc..4faa40f 100644
--- a/src/quick/framelessquickhelper.cpp
+++ b/src/quick/framelessquickhelper.cpp
@@ -957,7 +957,7 @@ void FramelessQuickHelperPrivate::rebindWindow()
 }
 
 FramelessQuickHelper::FramelessQuickHelper(QQuickItem *parent)
-    : QQuickItem(parent), d_ptr(std::make_unique<FramelessQuickHelperPrivate>(this))
+    : QQuickItem(parent), d_ptr(new FramelessQuickHelperPrivate(this))
 {
 }
 
diff --git a/src/quick/framelessquickwindow.cpp b/src/quick/framelessquickwindow.cpp
index 07b92e9..69ebebb 100644
--- a/src/quick/framelessquickwindow.cpp
+++ b/src/quick/framelessquickwindow.cpp
@@ -170,7 +170,7 @@ void FramelessQuickWindowPrivate::initialize()
 }
 
 FramelessQuickWindow::FramelessQuickWindow(QWindow *parent)
-    : QQuickWindowQmlImpl(parent), d_ptr(std::make_unique<FramelessQuickWindowPrivate>(this))
+    : QQuickWindowQmlImpl(parent), d_ptr(new FramelessQuickWindowPrivate(this))
 {
 }
 
diff --git a/src/quick/quickimageitem.cpp b/src/quick/quickimageitem.cpp
index 1ba2f8b..395a8e0 100644
--- a/src/quick/quickimageitem.cpp
+++ b/src/quick/quickimageitem.cpp
@@ -220,7 +220,7 @@ QRect QuickImageItemPrivate::paintArea() const
 }
 
 QuickImageItem::QuickImageItem(QQuickItem *parent)
-    : QQuickPaintedItem(parent), d_ptr(std::make_unique<QuickImageItemPrivate>(this))
+    : QQuickPaintedItem(parent), d_ptr(new QuickImageItemPrivate(this))
 {
 }
 
diff --git a/src/quick/quickmicamaterial.cpp b/src/quick/quickmicamaterial.cpp
index bdab9af..0028d23 100644
--- a/src/quick/quickmicamaterial.cpp
+++ b/src/quick/quickmicamaterial.cpp
@@ -244,7 +244,7 @@ void QuickMicaMaterialPrivate::appendNode(WallpaperImageNode *node)
 }
 
 QuickMicaMaterial::QuickMicaMaterial(QQuickItem *parent)
-    : QQuickItem(parent), d_ptr(std::make_unique<QuickMicaMaterialPrivate>(this))
+    : QQuickItem(parent), d_ptr(new QuickMicaMaterialPrivate(this))
 {
 }
 
diff --git a/src/quick/quickwindowborder.cpp b/src/quick/quickwindowborder.cpp
index 8e32481..f3be3ec 100644
--- a/src/quick/quickwindowborder.cpp
+++ b/src/quick/quickwindowborder.cpp
@@ -192,7 +192,7 @@ void QuickWindowBorderPrivate::rebindWindow()
 }
 
 QuickWindowBorder::QuickWindowBorder(QQuickItem *parent)
-    : QQuickPaintedItem(parent), d_ptr(std::make_unique<QuickWindowBorderPrivate>(this))
+    : QQuickPaintedItem(parent), d_ptr(new QuickWindowBorderPrivate(this))
 {
 }
 
diff --git a/src/widgets/framelessdialog.cpp b/src/widgets/framelessdialog.cpp
index 152c26e..602fb7d 100644
--- a/src/widgets/framelessdialog.cpp
+++ b/src/widgets/framelessdialog.cpp
@@ -90,7 +90,7 @@ WidgetsSharedHelper *FramelessDialogPrivate::widgetsSharedHelper() const
 }
 
 FramelessDialog::FramelessDialog(QWidget *parent)
-    : QDialog(parent), d_ptr(std::make_unique<FramelessDialogPrivate>(this))
+    : QDialog(parent), d_ptr(new FramelessDialogPrivate(this))
 {
 }
 
diff --git a/src/widgets/framelessmainwindow.cpp b/src/widgets/framelessmainwindow.cpp
index 7369e4a..f690134 100644
--- a/src/widgets/framelessmainwindow.cpp
+++ b/src/widgets/framelessmainwindow.cpp
@@ -123,7 +123,7 @@ WidgetsSharedHelper *FramelessMainWindowPrivate::widgetsSharedHelper() const
 }
 
 FramelessMainWindow::FramelessMainWindow(QWidget *parent, const Qt::WindowFlags flags)
-    : QMainWindow(parent, flags), d_ptr(std::make_unique<FramelessMainWindowPrivate>(this))
+    : QMainWindow(parent, flags), d_ptr(new FramelessMainWindowPrivate(this))
 {
 }
 
diff --git a/src/widgets/framelesswidget.cpp b/src/widgets/framelesswidget.cpp
index 086fed8..2840bf0 100644
--- a/src/widgets/framelesswidget.cpp
+++ b/src/widgets/framelesswidget.cpp
@@ -123,7 +123,7 @@ WidgetsSharedHelper *FramelessWidgetPrivate::widgetsSharedHelper() const
 }
 
 FramelessWidget::FramelessWidget(QWidget *parent)
-    : QWidget(parent), d_ptr(std::make_unique<FramelessWidgetPrivate>(this))
+    : QWidget(parent), d_ptr(new FramelessWidgetPrivate(this))
 {
 }
 
diff --git a/src/widgets/framelesswidgetshelper.cpp b/src/widgets/framelesswidgetshelper.cpp
index f35e48a..1e2deb7 100644
--- a/src/widgets/framelesswidgetshelper.cpp
+++ b/src/widgets/framelesswidgetshelper.cpp
@@ -882,7 +882,7 @@ void FramelessWidgetsHelperPrivate::setSystemButton(QWidget *widget, const Syste
 }
 
 FramelessWidgetsHelper::FramelessWidgetsHelper(QObject *parent)
-    : QObject(parent), d_ptr(std::make_unique<FramelessWidgetsHelperPrivate>(this))
+    : QObject(parent), d_ptr(new FramelessWidgetsHelperPrivate(this))
 {
 }
 
diff --git a/src/widgets/standardsystembutton.cpp b/src/widgets/standardsystembutton.cpp
index 9cbdca3..5537195 100644
--- a/src/widgets/standardsystembutton.cpp
+++ b/src/widgets/standardsystembutton.cpp
@@ -399,7 +399,7 @@ void StandardSystemButtonPrivate::initialize()
 }
 
 StandardSystemButton::StandardSystemButton(QWidget *parent)
-    : QAbstractButton(parent), d_ptr(std::make_unique<StandardSystemButtonPrivate>(this))
+    : QAbstractButton(parent), d_ptr(new StandardSystemButtonPrivate(this))
 {
 }
 
diff --git a/src/widgets/standardtitlebar.cpp b/src/widgets/standardtitlebar.cpp
index ca79a30..f0a8fa5 100644
--- a/src/widgets/standardtitlebar.cpp
+++ b/src/widgets/standardtitlebar.cpp
@@ -504,7 +504,7 @@ void StandardTitleBarPrivate::initialize()
 }
 
 StandardTitleBar::StandardTitleBar(QWidget *parent)
-    : QWidget(parent), d_ptr(std::make_unique<StandardTitleBarPrivate>(this))
+    : QWidget(parent), d_ptr(new StandardTitleBarPrivate(this))
 {
 }