diff --git a/enterpassworddialog/enterpassworddialog.cpp b/enterpassworddialog/enterpassworddialog.cpp
index 3da9e48..fcba3e5 100644
--- a/enterpassworddialog/enterpassworddialog.cpp
+++ b/enterpassworddialog/enterpassworddialog.cpp
@@ -3,11 +3,14 @@
 
 #include "ui_enterpassworddialog.h"
 
+#include <QApplication>
 #include <QEvent>
 #include <QGraphicsPixmapItem>
-#include <QGuiApplication>
+#include <QGraphicsScene>
+#include <QIcon>
 #include <QKeyEvent>
 #include <QMessageBox>
+#include <QStyle>
 
 #ifdef QT_UTILITIES_PLATFORM_SPECIFIC_CAPSLOCK_DETECTION
 #if defined(Q_OS_WIN32)
diff --git a/paletteeditor/paletteeditor.cpp b/paletteeditor/paletteeditor.cpp
index 2eb076c..222d7a1 100644
--- a/paletteeditor/paletteeditor.cpp
+++ b/paletteeditor/paletteeditor.cpp
@@ -7,6 +7,7 @@
 #include <QLabel>
 #include <QMetaProperty>
 #include <QPainter>
+#include <QStyle>
 #include <QToolButton>
 
 using namespace Widgets;
diff --git a/resources/qtconfigarguments.cpp b/resources/qtconfigarguments.cpp
index b0fe447..602b4ca 100644
--- a/resources/qtconfigarguments.cpp
+++ b/resources/qtconfigarguments.cpp
@@ -8,6 +8,7 @@
 #include <QString>
 #ifdef QT_UTILITIES_GUI_QTWIDGETS
 #include <QApplication>
+#include <QStyle>
 #include <QStyleFactory>
 #else
 #include <QGuiApplication>
diff --git a/resources/resources.cpp b/resources/resources.cpp
index 48c1941..5628d59 100644
--- a/resources/resources.cpp
+++ b/resources/resources.cpp
@@ -4,6 +4,8 @@
 
 #include <QDir>
 #include <QFile>
+#include <QFont>
+#include <QIcon>
 #include <QLibraryInfo>
 #include <QLocale>
 #include <QSettings>
@@ -12,13 +14,8 @@
 #include <QTranslator>
 #if defined(QT_UTILITIES_GUI_QTWIDGETS)
 #include <QApplication>
-#include <QFont>
-#include <QIcon>
-#include <QStyleFactory>
 #elif defined(QT_UTILITIES_GUI_QTQUICK)
-#include <QFont>
 #include <QGuiApplication>
-#include <QIcon>
 #else
 #include <QCoreApplication>
 #endif
diff --git a/widgets/iconbutton.cpp b/widgets/iconbutton.cpp
index 3844a7c..527fc62 100644
--- a/widgets/iconbutton.cpp
+++ b/widgets/iconbutton.cpp
@@ -1,6 +1,7 @@
 #include "./iconbutton.h"
 
 #include <QKeyEvent>
+#include <QStyle>
 #include <QStyleOptionFocusRect>
 #include <QStylePainter>