bump lxml
diff --git a/requirements.txt b/requirements.txt
index fbdd9df..1dd5f08 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
-lxml==4.6.2
+lxml==4.9.1
 python-dateutil==2.8.0
 requests==2.28.1