diff --git a/requirements.txt b/requirements.txt
index bd6fcc5..0fcb5c8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ cssselect==0.9.1
 enum34==1.1.6
 idna==2.1
 ipaddress==1.0.17
-lxml==3.5.0
+lxml==4.6.2
 pyasn1==0.1.9
 pyasn1-modules==0.0.8
 pycparser==2.14