diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -11,7 +11,7 @@
 # Spectacle project
 project(Spectacle VERSION ${SPECTACLE_VERSION})
 
-set(QT_MIN_VERSION     "5.4.0")
+set(QT_MIN_VERSION     "5.6.0")
 set(KF5_MIN_VERSION    "5.29.0")
 set(PLASMA_MIN_VERSION "5.4.0")
 
diff --git a/src/Gui/KSMainWindow.cpp b/src/Gui/KSMainWindow.cpp
--- a/src/Gui/KSMainWindow.cpp
+++ b/src/Gui/KSMainWindow.cpp
@@ -63,8 +63,8 @@
     mClipboardButton(new QToolButton),
     mSaveButton(new QToolButton),
     mSaveMenu(new QMenu),
-    mSaveAsAction(new QAction),
-    mSaveAction(new QAction),
+    mSaveAsAction(new QAction(nullptr)),
+    mSaveAction(new QAction(nullptr)),
     mMessageWidget(new KMessageWidget),
     mToolsMenu(new QMenu),
     mScreenRecorderToolsMenu(new QMenu),