diff --git a/customtkinter/widgets/widget_base_class.py b/customtkinter/widgets/widget_base_class.py
index 0f378e9..dd2aa23 100644
--- a/customtkinter/widgets/widget_base_class.py
+++ b/customtkinter/widgets/widget_base_class.py
@@ -2,7 +2,12 @@ import tkinter
 import tkinter.ttk as ttk
 import copy
 import re
-from typing import Callable, Union, TypedDict
+from typing import Callable, Union
+
+try:
+    from typing import TypedDict
+except ImportError:
+    from typing_extensions import TypedDict
 
 from ..windows.ctk_tk import CTk
 from ..windows.ctk_toplevel import CTkToplevel
diff --git a/setup.cfg b/setup.cfg
index f192ec7..f7165ef 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -20,4 +20,5 @@ packages =
     customtkinter.windows
 install_requires =
     darkdetect
+    typing_extensions; python_version<="3.7"
 include_package_data = True