diff --git a/requirements/requirements_doc.txt b/requirements/requirements_doc.txt
index 1b6d6a8a..6a9313a1 100644
--- a/requirements/requirements_doc.txt
+++ b/requirements/requirements_doc.txt
@@ -9,7 +9,7 @@ pyvista[jupyter]==0.45.2
 
 # Documentation dependencies
 Sphinx==8.1.3
-numpydoc==1.8.0
+numpydoc==1.9.0
 ansys-sphinx-theme==1.2.6
 sphinx-copybutton==0.5.2
 jupyter_sphinx==0.5.3