diff --git a/pyproject.toml b/pyproject.toml
index 24dee14c7..136144bc2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -17,7 +17,7 @@ docs = [
   'ipywidgets==8.1.8',
   'jupyter_sphinx==0.5.3',
   'jupyterlab==4.5.7',
-  'lxml==6.0.2',
+  'lxml==6.1.1',
   'matplotlib==3.10.1',
   'meshio==5.3.5',
   'mypy-extensions==1.1.0',