diff --git a/platymatch/_dock_widget.py b/platymatch/_dock_widget.py
index c2eecbb..6389cf0 100644
--- a/platymatch/_dock_widget.py
+++ b/platymatch/_dock_widget.py
@@ -2,9 +2,9 @@
 import csv
 import numpy as np
 import tifffile
-from PyQt5.QtCore import Qt
 from napari.qt.threading import thread_worker
 from napari_plugin_engine import napari_hook_implementation
+from qtpy.QtCore import Qt
 from qtpy.QtWidgets import QWidget, QGridLayout, QVBoxLayout, QPushButton, QCheckBox, QLabel, QComboBox, QLineEdit, \
     QFileDialog, QProgressBar
 from scipy.optimize import linear_sum_assignment
diff --git a/requirements.txt b/requirements.txt
index 3c78512..469b6be 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,6 +4,7 @@ scikit-image
 scikit-learn
 tqdm
 simpleitk
-napari[all]
+napari
 pandas
 pytest
+qtpy