diff --git a/requirements.txt b/requirements.txt
index e0f806e..e2b5e6a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ cssselect==1.1.0
 Flask==1.1.2
 itsdangerous==1.1.0
 Jinja2==2.11.2
-lxml==4.5.0
+lxml==4.9.1
 MarkupSafe==1.1.1
 parsel==1.5.2
 python-dateutil==2.8.1