diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -98,7 +98,7 @@
 if (IS_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/po")
     ecm_install_po_files_as_qm(po)
 endif()
-
+add_definitions(-DQT_DISABLE_DEPRECATED_BEFORE=0x050d00)
 add_subdirectory(src)
 if (BUILD_TESTING)
     add_subdirectory(tests)
diff --git a/src/imageconverter.cpp b/src/imageconverter.cpp
--- a/src/imageconverter.cpp
+++ b/src/imageconverter.cpp
@@ -66,7 +66,7 @@
 
 	QImage image = _image.convertToFormat(QImage::Format_RGBA8888);
 
-	QByteArray data((const char*)image.constBits(), image.byteCount());
+	QByteArray data((const char*)image.constBits(), image.sizeInBytes());
 
 	SpecImage specImage;
 	specImage.width = image.width();
diff --git a/src/kpassivepopup.cpp b/src/kpassivepopup.cpp
--- a/src/kpassivepopup.cpp
+++ b/src/kpassivepopup.cpp
@@ -287,8 +287,8 @@
     delete d->topLayout;
     d->topLayout = new QVBoxLayout(this);
     if (d->popupStyle == Balloon) {
-        const int marginHint = style()->pixelMetric(QStyle::PM_DefaultChildMargin);
-        d->topLayout->setMargin(2 * marginHint);
+        const int marginHint = 2 * style()->pixelMetric(QStyle::PM_DefaultChildMargin);
+        d->topLayout->setContentsMargins(marginHint, marginHint, marginHint, marginHint);
     }
     d->topLayout->addWidget(d->msgView);
     d->topLayout->activate();
diff --git a/src/kstatusnotifieritem.cpp b/src/kstatusnotifieritem.cpp
--- a/src/kstatusnotifieritem.cpp
+++ b/src/kstatusnotifieritem.cpp
@@ -1109,10 +1109,10 @@
     icon.width = image.size().width();
     icon.height = image.size().height();
     if (image.format() == QImage::Format_ARGB32) {
-        icon.data = QByteArray((char *)image.bits(), image.byteCount());
+        icon.data = QByteArray((char *)image.bits(), image.sizeInBytes());
     } else {
         QImage image32 = image.convertToFormat(QImage::Format_ARGB32);
-        icon.data = QByteArray((char *)image32.bits(), image32.byteCount());
+        icon.data = QByteArray((char *)image32.bits(), image32.sizeInBytes());
     }
 
     //swap to network byte order if we are little endian