diff --git a/pyproject.toml b/pyproject.toml
index c3dcede0d..eb58db13b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -43,7 +43,7 @@ tests = [
 doc = [
     "Sphinx==8.1.3",
     "numpydoc==1.8.0",
-    "ansys-sphinx-theme==1.2.7",
+    "ansys-sphinx-theme==1.3.3",
     "sphinx-copybutton==0.5.2",
     "sphinx-gallery==0.18.0",
     "matplotlib",