diff --git a/README.md b/README.md
index e5770417..40de2666 100644
--- a/README.md
+++ b/README.md
@@ -680,6 +680,7 @@ Inspired by [awesome-php](https://github.com/ziadoz/awesome-php).
 * [urwid](http://urwid.org/) - A library for creating terminal GUI applications with strong support for widgets, events, rich colors, etc.
 * [wxPython](https://wxpython.org/) - A blending of the wxWidgets C++ class library with the Python.
 * [DearPyGui](https://github.com/RaylockLLC/DearPyGui/) - A Simple GPU accelerated Python GUI framework
+* [Customtkinter](https://github.com/TomSchimansky/CustomTkinter) - CustomTkinter is a python UI-library based on Tkinter, which provides new, modern and fully customizable widgets.
 
 ## GraphQL