diff --git a/src/corelib/io/qdiriterator.h b/src/corelib/io/qdiriterator.h
index 7fa612ebe0f..6c9b40b28c4 100644
--- a/src/corelib/io/qdiriterator.h
+++ b/src/corelib/io/qdiriterator.h
@@ -6,6 +6,8 @@
 
 #include <QtCore/qdir.h>
 
+#include <memory>
+
 QT_BEGIN_NAMESPACE
 
 class QDirIteratorPrivate;
@@ -44,7 +46,7 @@ public:
 private:
     Q_DISABLE_COPY(QDirIterator)
 
-    QScopedPointer<QDirIteratorPrivate> d;
+    std::unique_ptr<QDirIteratorPrivate> d;
     friend class QDir;
 };
 
diff --git a/src/corelib/io/qfsfileengine_iterator_p.h b/src/corelib/io/qfsfileengine_iterator_p.h
index 22400abb7db..f3ffc336844 100644
--- a/src/corelib/io/qfsfileengine_iterator_p.h
+++ b/src/corelib/io/qfsfileengine_iterator_p.h
@@ -19,6 +19,8 @@
 #include "qfilesystemiterator_p.h"
 #include "qdir.h"
 
+#include <memory>
+
 #ifndef QT_NO_FILESYSTEMITERATOR
 
 QT_BEGIN_NAMESPACE
@@ -37,7 +39,7 @@ public:
     QFileInfo currentFileInfo() const override;
 
 private:
-    mutable QScopedPointer<QFileSystemIterator> nativeIterator;
+    mutable std::unique_ptr<QFileSystemIterator> nativeIterator;
 };
 
 QT_END_NAMESPACE
diff --git a/src/corelib/io/qiodevice.h b/src/corelib/io/qiodevice.h
index 76bc61e7325..6bf7149e9af 100644
--- a/src/corelib/io/qiodevice.h
+++ b/src/corelib/io/qiodevice.h
@@ -19,6 +19,8 @@
 #error qiodevice.h must be included before any header file that defines open
 #endif
 
+#include <memory>
+
 QT_BEGIN_NAMESPACE
 
 
@@ -137,7 +139,7 @@ protected:
     void setErrorString(const QString &errorString);
 
 #ifdef QT_NO_QOBJECT
-    QScopedPointer<QIODevicePrivate> d_ptr;
+    std::unique_ptr<QIODevicePrivate> d_ptr;
 #endif
 
 private:
diff --git a/src/corelib/io/qsettings.h b/src/corelib/io/qsettings.h
index 8bc73eb016c..5d0356e8906 100644
--- a/src/corelib/io/qsettings.h
+++ b/src/corelib/io/qsettings.h
@@ -31,7 +31,7 @@ class Q_CORE_EXPORT QSettings
 #ifndef QT_NO_QOBJECT
     Q_OBJECT
 #else
-    QScopedPointer<QSettingsPrivate> d_ptr;
+    std::unique_ptr<QSettingsPrivate> d_ptr;
 #endif
     Q_DECLARE_PRIVATE(QSettings)
 
diff --git a/src/corelib/ipc/qsystemsemaphore.h b/src/corelib/ipc/qsystemsemaphore.h
index df6fd28342c..0981a7eecee 100644
--- a/src/corelib/ipc/qsystemsemaphore.h
+++ b/src/corelib/ipc/qsystemsemaphore.h
@@ -9,6 +9,8 @@
 #include <QtCore/qstring.h>
 #include <QtCore/qscopedpointer.h>
 
+#include <memory>
+
 QT_BEGIN_NAMESPACE
 
 #if QT_CONFIG(systemsemaphore)
@@ -65,7 +67,7 @@ public:
 
 private:
     Q_DISABLE_COPY(QSystemSemaphore)
-    QScopedPointer<QSystemSemaphorePrivate> d;
+    std::unique_ptr<QSystemSemaphorePrivate> d;
 };
 
 #endif // QT_CONFIG(systemsemaphore)
diff --git a/src/corelib/kernel/qcoreapplication.cpp b/src/corelib/kernel/qcoreapplication.cpp
index 2094e12dc32..4d093ec71cd 100644
--- a/src/corelib/kernel/qcoreapplication.cpp
+++ b/src/corelib/kernel/qcoreapplication.cpp
@@ -1914,7 +1914,7 @@ void QCoreApplicationPrivate::sendPostedEvents(QObject *receiver, int event_type
         locker.unlock();
         const auto relocker = qScopeGuard([&locker] { locker.lock(); });
 
-        QScopedPointer<QEvent> event_deleter(e); // will delete the event (with the mutex unlocked)
+        const std::unique_ptr<QEvent> event_deleter(e); // will delete the event (with the mutex unlocked)
 
         // after all that work, it's time to deliver the event.
         QCoreApplication::sendEvent(r, e);
diff --git a/src/corelib/kernel/qcoreapplication.h b/src/corelib/kernel/qcoreapplication.h
index 421578117cd..e37cae7ddf5 100644
--- a/src/corelib/kernel/qcoreapplication.h
+++ b/src/corelib/kernel/qcoreapplication.h
@@ -218,7 +218,7 @@ protected:
     QCoreApplication(QCoreApplicationPrivate &p);
 
 #ifdef QT_NO_QOBJECT
-    QScopedPointer<QCoreApplicationPrivate> d_ptr;
+    std::unique_ptr<QCoreApplicationPrivate> d_ptr;
 #endif
 
 private:
diff --git a/src/corelib/kernel/qjnienvironment.h b/src/corelib/kernel/qjnienvironment.h
index dda8dc0950c..b473f75bed1 100644
--- a/src/corelib/kernel/qjnienvironment.h
+++ b/src/corelib/kernel/qjnienvironment.h
@@ -92,7 +92,7 @@ public:
 
 private:
     Q_DISABLE_COPY_MOVE(QJniEnvironment)
-    QScopedPointer<QJniEnvironmentPrivate> d;
+    std::unique_ptr<QJniEnvironmentPrivate> d;
 };
 
 QT_END_NAMESPACE
diff --git a/src/corelib/platform/android/qandroidextras.cpp b/src/corelib/platform/android/qandroidextras.cpp
index 72805ae9ed2..8cf2e463991 100644
--- a/src/corelib/platform/android/qandroidextras.cpp
+++ b/src/corelib/platform/android/qandroidextras.cpp
@@ -489,7 +489,7 @@ public:
 
     static QAndroidActivityResultReceiverPrivate *get(QAndroidActivityResultReceiver *publicObject)
     {
-        return publicObject->d.data();
+        return publicObject->d.get();
     }
 };
 
@@ -513,7 +513,7 @@ QAndroidActivityResultReceiver::QAndroidActivityResultReceiver()
     : d(new QAndroidActivityResultReceiverPrivate)
 {
     d->q = this;
-    QtAndroidPrivate::registerActivityResultListener(d.data());
+    QtAndroidPrivate::registerActivityResultListener(d.get());
 }
 
 /*!
@@ -521,7 +521,7 @@ QAndroidActivityResultReceiver::QAndroidActivityResultReceiver()
 */
 QAndroidActivityResultReceiver::~QAndroidActivityResultReceiver()
 {
-    QtAndroidPrivate::unregisterActivityResultListener(d.data());
+    QtAndroidPrivate::unregisterActivityResultListener(d.get());
 }
 
 /*!
diff --git a/src/corelib/platform/android/qandroidextras_p.h b/src/corelib/platform/android/qandroidextras_p.h
index efdc6cf74f1..1ebd156cb38 100644
--- a/src/corelib/platform/android/qandroidextras_p.h
+++ b/src/corelib/platform/android/qandroidextras_p.h
@@ -28,6 +28,8 @@
 #include <QtCore/qfuture.h>
 #endif
 
+#include <memory>
+
 QT_BEGIN_NAMESPACE
 
 class QAndroidParcel;
@@ -103,7 +105,7 @@ private:
     friend class QAndroidActivityResultReceiverPrivate;
     Q_DISABLE_COPY(QAndroidActivityResultReceiver)
 
-    QScopedPointer<QAndroidActivityResultReceiverPrivate> d;
+    std::unique_ptr<QAndroidActivityResultReceiverPrivate> d;
 };
 
 class Q_CORE_EXPORT QAndroidServiceConnection
@@ -170,7 +172,7 @@ private:
     friend class QAndroidServicePrivate;
     Q_DISABLE_COPY(QAndroidService)
 
-    QScopedPointer<QAndroidServicePrivate> d;
+    std::unique_ptr<QAndroidServicePrivate> d;
 };
 
 class QAndroidActivityCallbackResultReceiver: public QAndroidActivityResultReceiver
diff --git a/src/corelib/serialization/qcborstreamreader.h b/src/corelib/serialization/qcborstreamreader.h
index 2666b7c7b2b..5c03f95f0c2 100644
--- a/src/corelib/serialization/qcborstreamreader.h
+++ b/src/corelib/serialization/qcborstreamreader.h
@@ -11,6 +11,8 @@
 #include <QtCore/qstring.h>
 #include <QtCore/qstringview.h>
 
+#include <memory>
+
 QT_REQUIRE_CONFIG(cborstreamreader);
 
 /* X11 headers use these values too, but as defines */
@@ -194,7 +196,7 @@ private:
     friend QCborStreamReaderPrivate;
     friend class QCborContainerPrivate;
     quint64 value64;
-    QScopedPointer<QCborStreamReaderPrivate> d;
+    std::unique_ptr<QCborStreamReaderPrivate> d;
     quint8 type_;
     quint8 reserved[3] = {};
 };
diff --git a/src/corelib/serialization/qcborstreamwriter.h b/src/corelib/serialization/qcborstreamwriter.h
index 1018646c992..630cf67b7a4 100644
--- a/src/corelib/serialization/qcborstreamwriter.h
+++ b/src/corelib/serialization/qcborstreamwriter.h
@@ -13,6 +13,8 @@
 #include <QtCore/qfloat16.h>
 #endif
 
+#include <memory>
+
 QT_REQUIRE_CONFIG(cborstreamwriter);
 
 /* X11 headers use these values too, but as defines */
@@ -81,7 +83,7 @@ public:
     // no API for encoding chunked strings
 
 private:
-    QScopedPointer<QCborStreamWriterPrivate> d;
+    std::unique_ptr<QCborStreamWriterPrivate> d;
 };
 
 QT_END_NAMESPACE
diff --git a/src/corelib/serialization/qcborvalue.cpp b/src/corelib/serialization/qcborvalue.cpp
index b4cb432e78a..8a931a39dd0 100644
--- a/src/corelib/serialization/qcborvalue.cpp
+++ b/src/corelib/serialization/qcborvalue.cpp
@@ -1785,7 +1785,7 @@ static QCborValue taggedValueFromCbor(QCborStreamReader &reader, int remainingRe
 extern void qt_cbor_stream_set_error(QCborStreamReaderPrivate *d, QCborError error);
 inline void QCborContainerPrivate::setErrorInReader(QCborStreamReader &reader, QCborError error)
 {
-    qt_cbor_stream_set_error(reader.d.data(), error);
+    qt_cbor_stream_set_error(reader.d.get(), error);
 }
 
 extern QCborStreamReader::StringResultCode qt_cbor_append_string_chunk(QCborStreamReader &reader, QByteArray *data);
diff --git a/src/corelib/serialization/qdatastream.h b/src/corelib/serialization/qdatastream.h
index 71f2f4bbd9b..264454e9b6a 100644
--- a/src/corelib/serialization/qdatastream.h
+++ b/src/corelib/serialization/qdatastream.h
@@ -11,6 +11,7 @@
 #include <QtCore/qttypetraits.h>
 
 #include <iterator>         // std::distance(), std::next()
+#include <memory>
 
 #ifdef Status
 #error qdatastream.h must be included before any header file that defines Status
@@ -216,7 +217,7 @@ public:
 private:
     Q_DISABLE_COPY(QDataStream)
 
-    QScopedPointer<QDataStreamPrivate> d;
+    std::unique_ptr<QDataStreamPrivate> d;
 
     QIODevice *dev = nullptr;
     bool owndev = false;
diff --git a/src/corelib/serialization/qxmlstream.h b/src/corelib/serialization/qxmlstream.h
index 4f7ecd8cd94..71294cb6bc9 100644
--- a/src/corelib/serialization/qxmlstream.h
+++ b/src/corelib/serialization/qxmlstream.h
@@ -13,6 +13,8 @@
 #include <QtCore/qscopedpointer.h>
 #include <QtCore/qstring.h>
 
+#include <memory>
+
 QT_BEGIN_NAMESPACE
 
 namespace QtPrivate {
@@ -361,7 +363,7 @@ private:
 
     Q_DISABLE_COPY(QXmlStreamReader)
     Q_DECLARE_PRIVATE(QXmlStreamReader)
-    QScopedPointer<QXmlStreamReaderPrivate> d_ptr;
+    std::unique_ptr<QXmlStreamReaderPrivate> d_ptr;
 
 };
 #endif // feature xmlstreamreader
@@ -461,7 +463,7 @@ public:
 private:
     Q_DISABLE_COPY(QXmlStreamWriter)
     Q_DECLARE_PRIVATE(QXmlStreamWriter)
-    QScopedPointer<QXmlStreamWriterPrivate> d_ptr;
+    std::unique_ptr<QXmlStreamWriterPrivate> d_ptr;
 };
 #endif // feature xmlstreamwriter