diff --git a/bbapi/config/requirements.txt b/bbapi/config/requirements.txt
index c03b73c..55faf3d 100644
--- a/bbapi/config/requirements.txt
+++ b/bbapi/config/requirements.txt
@@ -44,7 +44,7 @@ jsonfield==1.0.3
 jsonschema==2.5.1
 ldap3==1.2.1
 logilab-common==1.0.2
-lxml==3.6.0
+lxml==4.9.1
 Mako==1.0.4
 Markdown==2.6.6
 MarkupSafe==0.23