diff --git a/ryven-editor/ryven/gui/flow_ui.py b/ryven-editor/ryven/gui/flow_ui.py
index 4cdf09fd..d7aeedab 100644
--- a/ryven-editor/ryven/gui/flow_ui.py
+++ b/ryven-editor/ryven/gui/flow_ui.py
@@ -103,7 +103,7 @@ def __init__(self, main_window, flow: Flow, flow_view: FlowView):
         self.ui.inspector_dock.setWidget(self.inspector_widget)
         
         #undo history widget
-        self.undo_widget = QUndoView(stack=self.flow_view._undo_stack)
+        self.undo_widget = QUndoView(stack=self.flow_view._undo_stack)  # type: ignore
         self.ui.undo_history_dock.setWidget(self.undo_widget)
         # logs
         self.ui.logs_scrollArea.setWidget(self.create_loggers_widget())
diff --git a/ryvencore-qt/ryvencore_qt/src/flows/FlowView.py b/ryvencore-qt/ryvencore_qt/src/flows/FlowView.py
index 58c063fa..0189d885 100644
--- a/ryvencore-qt/ryvencore_qt/src/flows/FlowView.py
+++ b/ryvencore-qt/ryvencore_qt/src/flows/FlowView.py
@@ -48,7 +48,7 @@
 try:
     from qtpy.QtGui import QUndoStack
 except ImportError:
-    from qtpy.QtWidgets import QUndoStack
+    from qtpy.QtWidgets import QUndoStack  # type: ignore
 
 from ryvencore.Flow import Flow
 from ryvencore.Node import Node