diff --git a/requirements.txt b/requirements.txt
index a66a45d40..eacf4229b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -32,7 +32,7 @@ idna==2.10
 itsdangerous==2.0.1
 Jinja2==3.0.3
 legendarium==2.0.2
-lxml==4.7.1
+lxml==4.9.1
 Mako==1.1.3
 MarkupSafe==2.0.1
 mongoengine==0.16.3