diff --git a/requirements/base.txt b/requirements/base.txt
index 791c909..72078d1 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -16,7 +16,7 @@ Fabric==1.10.0
 celery==3.1.16
 django-celery==3.1.16
 kombu==3.0.24
-lxml==3.4.0
+lxml==4.9.1
 django-crispy-forms==1.4.0
 django-reversion==1.8.5
 jsonfield==1.0.0