diff --git a/requirements.txt b/requirements.txt
index c012cc6..89446e4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,5 @@
 Pillow
 pyinstaller
 pyinstaller-hooks-contrib
-PySimpleGUI
+PySimpleGUI==4.60.1
+pywin32-ctypes