diff --git a/ODSA-django/requirements.txt b/ODSA-django/requirements.txt
index aad0a891..cb262ce0 100644
--- a/ODSA-django/requirements.txt
+++ b/ODSA-django/requirements.txt
@@ -45,7 +45,7 @@ launchpadlib==1.10.2
 #lazr.restfulclient==0.13.3
 lazr.uri==1.0.3
 logilab-common==0.61.0
-lxml==3.3.1
+lxml==4.6.5
 meld3==0.6.10
 mimeparse==0.1.3
 oauth==1.0.1