diff --git a/requirements/requirements_doc.txt b/requirements/requirements_doc.txt
index e6804d96f57c..6e8fea0cb628 100644
--- a/requirements/requirements_doc.txt
+++ b/requirements/requirements_doc.txt
@@ -6,7 +6,7 @@ ansys-sphinx-theme==0.8.0
 pypandoc==1.10
 pytest-sphinx==0.5.0
 sphinx-autobuild==2021.3.14
-sphinx-autodoc-typehints==1.19.5
+sphinx-autodoc-typehints==1.21.8
 sphinx-copybutton==0.5.1
 sphinx-gallery==0.11.1
 sphinx-notfound-page==0.8.3