diff --git a/pyproject.toml b/pyproject.toml
index c4c6a10d..420660fd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -42,7 +42,7 @@ tests = [
 ]
 
 doc = [
-    "ansys-sphinx-theme==1.0.8",
+    "ansys-sphinx-theme==1.0.9",
     "autodoc_pydantic==2.1.0",
     "jupyter_sphinx==0.5.3",
     "nbsphinx==0.9.5",