diff --git a/requirements_prod.txt b/requirements_prod.txt
index d058e05..c76be92 100644
--- a/requirements_prod.txt
+++ b/requirements_prod.txt
@@ -8,7 +8,7 @@ django-filter==2.1.0
 djangorestframework==3.11.2
 gunicorn==19.9.0
 idna==2.8
-lxml==4.6.3
+lxml==4.9.1
 Markdown==3.1.1
 pkg-resources==0.0.0
 psycopg2-binary==2.8.3