diff --git a/requirements.txt b/requirements.txt
index c3050c8..6fb26a9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,7 +31,7 @@ jsonrpclib-pelix==0.3.1
 keyring==10.6.0
 keyrings.alt==3.0
 # LibAppArmor==2.12
-lxml==4.1.0
+lxml==4.9.1
 Mako==1.0.7
 MarkupSafe==1.0
 # mate-tweak==18.4.0