diff --git a/requirements.txt b/requirements.txt
index 8c29cc2..0563fca 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 asgiref==3.2.3
 Django==3.0.4
-lxml==4.5.0
+lxml==4.9.1
 numpy==1.18.1
 Pillow==7.0.0
 pytz==2019.3