diff --git a/requirements.txt b/requirements.txt
index 8cf2414..ab8b839 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ html5lib==1.0.1
 idna==2.8
 ipaddr==2.2.0
 lockfile==0.12.2
-lxml==4.6.3
+lxml==6.1.0
 msgpack==0.6.2
 packaging==20.3
 pep517==0.8.2