diff --git a/PyQt5-stubs/QtCore.pyi b/PyQt5-stubs/QtCore.pyi
index cbd7c28d..b2501948 100644
--- a/PyQt5-stubs/QtCore.pyi
+++ b/PyQt5-stubs/QtCore.pyi
@@ -3292,7 +3292,7 @@ class QAbstractItemModel(QObject):
     def endMoveRows(self) -> None: ...
     def beginMoveRows(self, sourceParent: QModelIndex, sourceFirst: int, sourceLast: int, destinationParent: QModelIndex, destinationRow: int) -> bool: ...
     def columnsMoved(self, parent: QModelIndex, start: int, end: int, destination: QModelIndex, column: int) -> None: ...
-    def columnsAboutToBeMoved(self, sourceParent: QModelIndex, sourceStart: int, sourceEnd: int, destinationParent: QModelIndex, destinationColumn: int) -> None: ...
+    columnsAboutToBeMoved: typing.ClassVar[pyqtSignal]
     def rowsMoved(self, parent: QModelIndex, start: int, end: int, destination: QModelIndex, row: int) -> None: ...
     def rowsAboutToBeMoved(self, sourceParent: QModelIndex, sourceStart: int, sourceEnd: int, destinationParent: QModelIndex, destinationRow: int) -> None: ...
     def createIndex(self, row: int, column: int, object: typing.Any = ...) -> QModelIndex: ...
@@ -3317,19 +3317,19 @@ class QAbstractItemModel(QObject):
     def encodeData(self, indexes: typing.Iterable[QModelIndex], stream: 'QDataStream') -> None: ...
     def revert(self) -> None: ...
     def submit(self) -> bool: ...
-    def modelReset(self) -> None: ...
-    def modelAboutToBeReset(self) -> None: ...
-    def columnsRemoved(self, parent: QModelIndex, first: int, last: int) -> None: ...
-    def columnsAboutToBeRemoved(self, parent: QModelIndex, first: int, last: int) -> None: ...
-    def columnsInserted(self, parent: QModelIndex, first: int, last: int) -> None: ...
-    def columnsAboutToBeInserted(self, parent: QModelIndex, first: int, last: int) -> None: ...
-    def rowsRemoved(self, parent: QModelIndex, first: int, last: int) -> None: ...
-    def rowsAboutToBeRemoved(self, parent: QModelIndex, first: int, last: int) -> None: ...
-    def rowsInserted(self, parent: QModelIndex, first: int, last: int) -> None: ...
-    def rowsAboutToBeInserted(self, parent: QModelIndex, first: int, last: int) -> None: ...
-    def layoutChanged(self, parents: typing.Iterable[QPersistentModelIndex] = ..., hint: 'QAbstractItemModel.LayoutChangeHint' = ...) -> None: ...
-    def layoutAboutToBeChanged(self, parents: typing.Iterable[QPersistentModelIndex] = ..., hint: 'QAbstractItemModel.LayoutChangeHint' = ...) -> None: ...
-    def headerDataChanged(self, orientation: Qt.Orientation, first: int, last: int) -> None: ...
+    modelReset: typing.ClassVar[pyqtSignal]
+    modelAboutToBeReset: typing.ClassVar[pyqtSignal]
+    columnsRemoved: typing.ClassVar[pyqtSignal]
+    columnsAboutToBeRemoved: typing.ClassVar[pyqtSignal]
+    columnsInserted: typing.ClassVar[pyqtSignal]
+    columnsAboutToBeInserted: typing.ClassVar[pyqtSignal]
+    rowsRemoved: typing.ClassVar[pyqtSignal]
+    rowsAboutToBeRemoved: typing.ClassVar[pyqtSignal]
+    rowsInserted: typing.ClassVar[pyqtSignal]
+    rowsAboutToBeInserted: typing.ClassVar[pyqtSignal]
+    layoutChanged: typing.ClassVar[pyqtSignal]
+    layoutAboutToBeChanged: typing.ClassVar[pyqtSignal]
+    headerDataChanged: typing.ClassVar[pyqtSignal]
     dataChanged: typing.ClassVar[pyqtSignal]
     def span(self, index: QModelIndex) -> 'QSize': ...
     def match(self, start: QModelIndex, role: int, value: typing.Any, hits: int = ..., flags: typing.Union[Qt.MatchFlags, Qt.MatchFlag] = ...) -> typing.List[QModelIndex]: ...