diff --git a/func/Module_mainwindow.py b/func/Module_mainwindow.py
index f65c17f..cd836f0 100644
--- a/func/Module_mainwindow.py
+++ b/func/Module_mainwindow.py
@@ -5,7 +5,6 @@ from PySide6.QtCore import Qt
 from PySide6.QtWidgets import QMainWindow, QMessageBox, QFileDialog, QApplication, QWidget
 from PySide6.QtGui import QGuiApplication
 from matplotlib import use
-from matplotlib.backends.backend_qt import NavigationToolbar2QT
 from yaml import dump, load, FullLoader
 
 from func.utils.PublicFunc import PublicFunc