diff --git a/src/widgets/widgets/qeffects.cpp b/src/widgets/widgets/qeffects.cpp
index eaf8deca69e..1e16b53d5c8 100644
--- a/src/widgets/widgets/qeffects.cpp
+++ b/src/widgets/widgets/qeffects.cpp
@@ -115,7 +115,7 @@ void QAlphaWidget::run(int time)
     qApp->installEventFilter(this);
     widget->setWindowOpacity(0.0);
     widget->show();
-    connect(&anim, SIGNAL(timeout()), this, SLOT(render()));
+    connect(&anim, &QTimer::timeout, this, &QAlphaWidget::render);
     anim.start(1);
 #else
     //This is roughly equivalent to calling setVisible(true) without actually showing the widget
@@ -138,7 +138,7 @@ void QAlphaWidget::run(int time)
         show();
         setEnabled(false);
 
-        connect(&anim, SIGNAL(timeout()), this, SLOT(render()));
+        connect(&anim, &QTimer::timeout, this, &QAlphaWidget::render);
         anim.start(1);
     } else {
        duration = 0;
@@ -428,7 +428,7 @@ void QRollEffect::run(int time)
         duration = qMin(qMax(dist/3, 50), 120);
     }
 
-    connect(&anim, SIGNAL(timeout()), this, SLOT(scroll()));
+    connect(&anim, &QTimer::timeout, this, &QRollEffect::scroll);
 
     move(widget->geometry().x(),widget->geometry().y());
     resize(qMin(currentWidth, totalWidth), qMin(currentHeight, totalHeight));
diff --git a/src/widgets/widgets/qstackedwidget.cpp b/src/widgets/widgets/qstackedwidget.cpp
index 754744cf673..9cecee2ef86 100644
--- a/src/widgets/widgets/qstackedwidget.cpp
+++ b/src/widgets/widgets/qstackedwidget.cpp
@@ -98,8 +98,10 @@ QStackedWidget::QStackedWidget(QWidget *parent)
 {
     Q_D(QStackedWidget);
     d->layout = new QStackedLayout(this);
-    connect(d->layout, SIGNAL(widgetRemoved(int)), this, SIGNAL(widgetRemoved(int)));
-    connect(d->layout, SIGNAL(currentChanged(int)), this, SIGNAL(currentChanged(int)));
+    connect(d->layout, &QStackedLayout::widgetRemoved,
+            this, &QStackedWidget::widgetRemoved);
+    connect(d->layout, &QStackedLayout::currentChanged,
+            this, &QStackedWidget::currentChanged);
 }
 
 /*!
diff --git a/src/widgets/widgets/qstatusbar.cpp b/src/widgets/widgets/qstatusbar.cpp
index ea3913525c3..8dd1347791b 100644
--- a/src/widgets/widgets/qstatusbar.cpp
+++ b/src/widgets/widgets/qstatusbar.cpp
@@ -494,7 +494,7 @@ void QStatusBar::showMessage(const QString &message, int timeout)
     if (timeout > 0) {
         if (!d->timer) {
             d->timer = new QTimer(this);
-            connect(d->timer, SIGNAL(timeout()), this, SLOT(clearMessage()));
+            connect(d->timer, &QTimer::timeout, this, &QStatusBar::clearMessage);
         }
         d->timer->start(timeout);
     } else if (d->timer) {
diff --git a/src/widgets/widgets/qwidgetanimator.cpp b/src/widgets/widgets/qwidgetanimator.cpp
index b7abd1f0dc5..d45215dee38 100644
--- a/src/widgets/widgets/qwidgetanimator.cpp
+++ b/src/widgets/widgets/qwidgetanimator.cpp
@@ -73,7 +73,8 @@ void QWidgetAnimator::animate(QWidget *widget, const QRect &_final_geometry, boo
         anim->setEasingCurve(QEasingCurve::InOutQuad);
         anim->setEndValue(final_geometry);
         m_animation_map[widget] = anim;
-        connect(anim, SIGNAL(finished()), SLOT(animationFinished()));
+        connect(anim, &QPropertyAnimation::finished,
+                this, &QWidgetAnimator::animationFinished);
         anim->start(QPropertyAnimation::DeleteWhenStopped);
     } else
 #endif // animation