Update README.md

Author: Cynwell

README.md

@@ -3,7 +3,7 @@ Makes image or CAPTCHA labeling work faster.
 
 Requirements:
 - Python (https://www.python.org/downloads/)
-- PySimpleGUI v4.0.0 (After installing Python, open "Command Prompt", type "pip install PySimpleGUI==4.0.0") (Not the latest version)
+- PySimpleGUI v4.4.1 (After installing Python, open "Command Prompt", type "pip install PySimpleGUI==4.4.1")
 
 How to run:
 Execute the Python script.