diff --git a/pyproject.toml b/pyproject.toml
index c478a636..8193a76b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -40,7 +40,7 @@ tests = [
     "gitpython==3.1.45",
 ]
 doc = [
-    "ansys-sphinx-theme[autoapi]==1.6.1",
+    "ansys-sphinx-theme[autoapi]==1.6.3",
     "numpydoc==1.9.0",
     "sphinx==8.2.3",
     "sphinx-autodoc-typehints==3.1.0",