diff --git a/requirements/gui.txt b/requirements/gui.txt
index 9b7879b..426c3ce 100644
--- a/requirements/gui.txt
+++ b/requirements/gui.txt
@@ -1,6 +1,6 @@
 -r base.txt
 pywin32; platform_system == "Windows"
-PySide2
+PySide2==5.14.2
 PyQt5==5.14.2
 qrcode[pil]
 https://github.com/sunu/qt5reactor/archive/58410aaead2185e9917ae9cac9c50fe7b70e4a60.zip#egg=qt5reactor