diff --git a/requirements.txt b/requirements.txt
index bd2c8b6..3953f9f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -55,7 +55,7 @@ gsconfig==1.0.6
 gsimporter==1.0.0
 httplib2==0.9.2
 kombu==3.0.35
-lxml==3.6.4
+lxml==4.6.3
 mccabe==0.5.2
 pep8==1.6.2
 pillow==3.3.1