diff --git a/pyproject.toml b/pyproject.toml
index c2f6eea6..6276cad3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,7 +33,7 @@ tests = [
     "pytest-cov==4.1.0",
 ]
 doc = [
-    "ansys-sphinx-theme==0.13.1",
+    "ansys-sphinx-theme==0.13.4",
     "numpydoc==1.6.0",
     "Sphinx==7.2.6",
     "sphinx-autoapi==3.0.0",