diff --git a/src/widgets/dialogs/qsidebar.cpp b/src/widgets/dialogs/qsidebar.cpp
index 75e43a2bed2..9f6b329a6f6 100644
--- a/src/widgets/dialogs/qsidebar.cpp
+++ b/src/widgets/dialogs/qsidebar.cpp
@@ -43,6 +43,12 @@ QUrlModel::QUrlModel(QObject *parent) : QStandardItemModel(parent), showFullPath
 {
 }
 
+QUrlModel::~QUrlModel()
+{
+    for (const auto &conn : std::as_const(modelConnections))
+        disconnect(conn);
+}
+
 /*!
     \reimp
 */
@@ -266,21 +272,19 @@ void QUrlModel::setFileSystemModel(QFileSystemModel *model)
     if (model == fileSystemModel)
         return;
     if (fileSystemModel != nullptr) {
-        disconnect(model, SIGNAL(dataChanged(QModelIndex,QModelIndex)),
-            this, SLOT(dataChanged(QModelIndex,QModelIndex)));
-        disconnect(model, SIGNAL(layoutChanged()),
-            this, SLOT(layoutChanged()));
-        disconnect(model, SIGNAL(rowsRemoved(QModelIndex,int,int)),
-            this, SLOT(layoutChanged()));
+        for (const auto &conn : std::as_const(modelConnections))
+            disconnect(conn);
     }
     fileSystemModel = model;
     if (fileSystemModel != nullptr) {
-        connect(model, SIGNAL(dataChanged(QModelIndex,QModelIndex)),
-            this, SLOT(dataChanged(QModelIndex,QModelIndex)));
-        connect(model, SIGNAL(layoutChanged()),
-            this, SLOT(layoutChanged()));
-        connect(model, SIGNAL(rowsRemoved(QModelIndex,int,int)),
-            this, SLOT(layoutChanged()));
+        modelConnections = {
+            connect(model, &QFileSystemModel::dataChanged,
+                    this, &QUrlModel::dataChanged),
+            connect(model, &QFileSystemModel::layoutChanged,
+                    this, &QUrlModel::layoutChanged),
+            connect(model, &QFileSystemModel::rowsRemoved,
+                    this, &QUrlModel::layoutChanged),
+        };
     }
     clear();
     insertColumns(0, 1);
@@ -352,14 +356,14 @@ void QSidebar::setModelAndUrls(QFileSystemModel *model, const QList<QUrl> &newUr
     setModel(urlModel);
     setItemDelegate(new QSideBarDelegate(this));
 
-    connect(selectionModel(), SIGNAL(currentChanged(QModelIndex,QModelIndex)),
-            this, SLOT(clicked(QModelIndex)));
+    connect(selectionModel(), &QItemSelectionModel::currentChanged,
+            this, &QSidebar::clicked);
 #if QT_CONFIG(draganddrop)
     setDragDropMode(QAbstractItemView::DragDrop);
 #endif
     setContextMenuPolicy(Qt::CustomContextMenu);
-    connect(this, SIGNAL(customContextMenuRequested(QPoint)),
-            this, SLOT(showContextMenu(QPoint)));
+    connect(this, &QSidebar::customContextMenuRequested,
+            this, &QSidebar::showContextMenu);
     urlModel->setUrls(newUrls);
     setCurrentIndex(this->model()->index(0,0));
 }
@@ -385,8 +389,8 @@ QSize QSidebar::sizeHint() const
 
 void QSidebar::selectUrl(const QUrl &url)
 {
-    disconnect(selectionModel(), SIGNAL(currentChanged(QModelIndex,QModelIndex)),
-               this, SLOT(clicked(QModelIndex)));
+    disconnect(selectionModel(), &QItemSelectionModel::currentChanged,
+               this, &QSidebar::clicked);
 
     selectionModel()->clear();
     for (int i = 0; i < model()->rowCount(); ++i) {
@@ -396,8 +400,8 @@ void QSidebar::selectUrl(const QUrl &url)
         }
     }
 
-    connect(selectionModel(), SIGNAL(currentChanged(QModelIndex,QModelIndex)),
-            this, SLOT(clicked(QModelIndex)));
+    connect(selectionModel(), &QItemSelectionModel::currentChanged,
+            this, &QSidebar::clicked);
 }
 
 #if QT_CONFIG(menu)
@@ -413,7 +417,7 @@ void QSidebar::showContextMenu(const QPoint &position)
         QAction *action = new QAction(QFileDialog::tr("Remove"), this);
         if (indexAt(position).data(QUrlModel::UrlRole).toUrl().path().isEmpty())
             action->setEnabled(false);
-        connect(action, SIGNAL(triggered()), this, SLOT(removeEntry()));
+        connect(action, &QAction::triggered, this, &QSidebar::removeEntry);
         actions.append(action);
     }
     if (actions.size() > 0)
diff --git a/src/widgets/dialogs/qsidebar_p.h b/src/widgets/dialogs/qsidebar_p.h
index 74805e4f2d0..ed17a2ff311 100644
--- a/src/widgets/dialogs/qsidebar_p.h
+++ b/src/widgets/dialogs/qsidebar_p.h
@@ -47,6 +47,7 @@ public:
     };
 
     QUrlModel(QObject *parent = nullptr);
+    ~QUrlModel();
 
     QStringList mimeTypes() const override;
     QMimeData *mimeData(const QModelIndexList &indexes) const override;
@@ -80,6 +81,7 @@ private:
 
     QList<WatchItem> watching;
     QList<QUrl> invalidUrls;
+    std::array<QMetaObject::Connection, 3> modelConnections;
 };
 Q_DECLARE_TYPEINFO(QUrlModel::WatchItem, Q_RELOCATABLE_TYPE);