diff --git a/requirements.txt b/requirements.txt
index ba34d673..c602db24 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -99,7 +99,7 @@ jinja2==3.1.2
     #   sphinx
 libsass==0.22.0
     # via doxysphinx
-lxml==4.9.3
+lxml==4.9.4
     # via doxysphinx
 markdown-it-py==2.2.0
     # via