diff --git a/requirements.txt b/requirements.txt
index cf7e9f48..1878ebe2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,5 +10,5 @@ tensorboardX
 scipy
 opencv-python
 einops
-PySimpleGUI
+PySimpleGUI>=4.34.0,<=4.60.3
 matplotlib