diff --git a/src/qt/guiutil.cpp b/src/qt/guiutil.cpp
--- a/src/qt/guiutil.cpp
+++ b/src/qt/guiutil.cpp
@@ -419,22 +419,20 @@
 }
 
 void TableViewLastColumnResizingFixer::connectViewHeadersSignals() {
-    connect(tableView->horizontalHeader(),
-            SIGNAL(sectionResized(int, int, int)), this,
-            SLOT(on_sectionResized(int, int, int)));
-    connect(tableView->horizontalHeader(), SIGNAL(geometriesChanged()), this,
-            SLOT(on_geometriesChanged()));
+    connect(tableView->horizontalHeader(), &QHeaderView::sectionResized, this,
+            &TableViewLastColumnResizingFixer::on_sectionResized);
+    connect(tableView->horizontalHeader(), &QHeaderView::geometriesChanged,
+            this, &TableViewLastColumnResizingFixer::on_geometriesChanged);
 }
 
 // We need to disconnect these while handling the resize events, otherwise we
 // can enter infinite loops.
 void TableViewLastColumnResizingFixer::disconnectViewHeadersSignals() {
-    disconnect(tableView->horizontalHeader(),
-               SIGNAL(sectionResized(int, int, int)), this,
-               SLOT(on_sectionResized(int, int, int)));
-    disconnect(tableView->horizontalHeader(), SIGNAL(geometriesChanged()), this,
-               SLOT(on_geometriesChanged()));
-}
+    disconnect(tableView->horizontalHeader(), &QHeaderView::sectionResized,
+               this, &TableViewLastColumnResizingFixer::on_sectionResized);
+    disconnect(tableView->horizontalHeader(), &QHeaderView::geometriesChanged,
+               this, &TableViewLastColumnResizingFixer::on_geometriesChanged);
+} // namespace GUIUtil
 
 // Setup the resize mode, handles compatibility for Qt5 and below as the method
 // signatures changed.