diff --git a/requirement.txt b/requirement.txt
index 3173907..bdd2d59 100644
--- a/requirement.txt
+++ b/requirement.txt
@@ -34,7 +34,7 @@ jmespath==0.9.3
 jsmin==2.2.2
 kaitaistruct==0.8
 ldap3==2.5.1
-lxml==4.2.2
+lxml==4.6.3
 MarkupSafe==1.0
 mitmproxy==4.0.4
 more-itertools==4.3.0