diff --git a/pyproject.toml b/pyproject.toml
index d343a4c8c4d..7e997f56a5d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -57,7 +57,7 @@ tests = [
 doc = [
     "Sphinx==7.0.1",
     "numpydoc==1.5.0",
-    "ansys-sphinx-theme==0.9.9",
+    "ansys-sphinx-theme==0.12.4",
     "sphinx-copybutton==0.5.2",
     "sphinx-gallery==0.13.0",
     "sphinxcontrib-mermaid==0.9.2",