diff --git a/ecg_label_check.py b/ecg_label_check.py
index b3e2652..6b0b7e5 100644
--- a/ecg_label_check.py
+++ b/ecg_label_check.py
@@ -14,7 +14,7 @@ import numpy as np
 from PyQt5 import QtGui
 from PyQt5.QtGui import QFont, QDoubleValidator, QIntValidator
 from matplotlib.ticker import FuncFormatter
-from numpy import load, nan, zeros, append, linspace, place
+from numpy import append
 from matplotlib import use
 from matplotlib import pyplot as plt, gridspec
 from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg, NavigationToolbar2QT
@@ -22,7 +22,7 @@ from datetime import datetime
 from pathlib import Path
 from PyQt5.QtCore import QCoreApplication, QTimer
 from PyQt5.QtWidgets import QFileDialog, QMainWindow, QMessageBox, QButtonGroup, QApplication, QTableWidgetItem, \
-    QLineEdit, QAction, QTableWidget, QDialog, QVBoxLayout, QLabel, QPushButton, QDialogButtonBox
+    QLineEdit, QAction, QTableWidget, QDialog, QVBoxLayout, QLabel, QDialogButtonBox
 from scipy.signal import butter, filtfilt, find_peaks
 
 import append