diff --git a/.pylintrc b/.pylintrc
index 5137539..3988b97 100644
--- a/.pylintrc
+++ b/.pylintrc
@@ -12,4 +12,4 @@ disable=W0614,C0410,C0321,C0111,I0011,C0103
 # allow ls for list
 good-names=_,a,b,c,dt,db,e,f,fn,fd,i,j,k,v,kv,kw,l,m,n,ls,t,t0,t1,t2,t3,w,h,x,y,z,it,op
 [MASTER]
-extension-pkg-whitelist=PyQt6
+extension-pkg-allow-list=PyQt6.QtWidgets,PyQt6.QtGui,PyQt6.QtCore
diff --git a/src/NanoVNASaver/Charts/Frequency.py b/src/NanoVNASaver/Charts/Frequency.py
index f9a2bd9..87eb11f 100644
--- a/src/NanoVNASaver/Charts/Frequency.py
+++ b/src/NanoVNASaver/Charts/Frequency.py
@@ -239,7 +239,7 @@ class FrequencyChart(Chart):
         else:
             self.y_action_automatic.setChecked(True)
 
-        self.menu.exec_(event.globalPos())
+        self.menu.exec(event.globalPos())
 
     def setFixedSpan(self, fixed_span: bool):
         self.fixedSpan = fixed_span
diff --git a/src/NanoVNASaver/Charts/Smith.py b/src/NanoVNASaver/Charts/Smith.py
index c37e842..5d96069 100644
--- a/src/NanoVNASaver/Charts/Smith.py
+++ b/src/NanoVNASaver/Charts/Smith.py
@@ -160,6 +160,6 @@ class SmithChart(SquareChart):
             qp.drawEllipse(QtCore.QPoint(center_x, center_y), r, r)
             qp.drawText(
                 QtCore.QRect(center_x - 50, center_y - 4 + r, 100, 20),
-                QtCore.Qt.AlignCenter,
+                QtCore.Qt.AlignmentFlag.AlignCenter,
                 f"{swr}",
             )
diff --git a/src/NanoVNASaver/Defaults.py b/src/NanoVNASaver/Defaults.py
index 89caec1..e7c32ec 100644
--- a/src/NanoVNASaver/Defaults.py
+++ b/src/NanoVNASaver/Defaults.py
@@ -21,7 +21,6 @@ import dataclasses as DC
 import logging
 from ast import literal_eval
 
-from PyQt6 import QtCore
 from PyQt6.QtCore import QSettings, QByteArray
 from PyQt6.QtGui import QColor, QColorConstants
 
diff --git a/src/NanoVNASaver/NanoVNASaver.py b/src/NanoVNASaver/NanoVNASaver.py
index 6f912bc..005540e 100644
--- a/src/NanoVNASaver/NanoVNASaver.py
+++ b/src/NanoVNASaver/NanoVNASaver.py
@@ -23,6 +23,7 @@ import threading
 from time import strftime, localtime
 
 from PyQt6 import QtWidgets, QtCore, QtGui
+from PyQt6.QtWidgets import QWidget
 
 from NanoVNASaver import Defaults
 from .Windows import (
@@ -78,7 +79,7 @@ from .About import VERSION
 logger = logging.getLogger(__name__)
 
 
-class NanoVNASaver(QtWidgets.QWidget):
+class NanoVNASaver(QWidget):
     version = VERSION
     dataAvailable = QtCore.pyqtSignal()
     scaleFactor = 1
@@ -160,7 +161,7 @@ class NanoVNASaver(QtWidgets.QWidget):
             QtWidgets.QSizePolicy.Policy.MinimumExpanding,
             QtWidgets.QSizePolicy.Policy.MinimumExpanding,
         )
-        widget = QtWidgets.QWidget()
+        widget = QWidget()
         widget.setLayout(layout)
         scrollarea.setWidget(widget)
 
@@ -248,7 +249,7 @@ class NanoVNASaver(QtWidgets.QWidget):
         right_column = QtWidgets.QVBoxLayout()
         right_column.addLayout(self.charts_layout)
         self.marker_frame.setHidden(Defaults.cfg.gui.markers_hidden)
-        chart_widget = QtWidgets.QWidget()
+        chart_widget = QWidget()
         chart_widget.setLayout(right_column)
         self.splitter = QtWidgets.QSplitter()
         self.splitter.addWidget(self.marker_frame)
@@ -301,7 +302,7 @@ class NanoVNASaver(QtWidgets.QWidget):
         scroll2.setWidgetResizable(True)
         scroll2.setVisible(True)
 
-        widget2 = QtWidgets.QWidget()
+        widget2 = QWidget()
         widget2.setLayout(self.marker_data_layout)
         scroll2.setWidget(widget2)
         self.marker_column.addWidget(scroll2)
diff --git a/src/NanoVNASaver/Settings/Bands.py b/src/NanoVNASaver/Settings/Bands.py
index 8242cbe..9f74a04 100644
--- a/src/NanoVNASaver/Settings/Bands.py
+++ b/src/NanoVNASaver/Settings/Bands.py
@@ -157,7 +157,7 @@ class BandsModel(QtCore.QAbstractTableModel):
                 | Qt.ItemFlag.ItemIsEnabled
                 | Qt.ItemFlag.ItemIsSelectable
             )
-        super().flags(index)
+        return super().flags(index)
 
     def setColor(self, color):
         self.color = color