diff --git a/docs/requirements.txt b/docs/requirements.txt
index 35d6a35..4e9a8ad 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,3 +1,4 @@
 sphinx-issues==5.0.0
 sphinx-autodoc-typehints==2.5.0
 sphinx-copybutton==0.5.2
+typing-extensions>=4.9.0