diff --git a/requirements.txt b/requirements.txt
index e768689c..5661047b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ babel==2.9.1
 flask-babel==2.0.0
 flask==2.1.1
 jinja2==3.1.1
-lxml==4.7.1
+lxml==4.9.0
 pygments==2.8.0
 python-dateutil==2.8.2
 pyyaml==6.0