diff --git a/doc/source/requirements.txt b/doc/source/requirements.txt
index ffb2b6d..2960a01 100644
--- a/doc/source/requirements.txt
+++ b/doc/source/requirements.txt
@@ -1,4 +1,4 @@
-lxml==6.0.2
+lxml==6.0.3
 importlib_metadata;python_version < '3.8'
 packaging
 Sphinx>=3
diff --git a/requirements.txt b/requirements.txt
index 8221c37..62e1204 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1 @@
-lxml==6.0.2
+lxml==6.0.3