diff --git a/requirements.txt b/requirements.txt
index 2206ec6..a7de26d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@ django-tables2==2.4.1
 django-templated-email==3.0.0
 idna==3.3
 isodate==0.6.1
-lxml==4.6.5
+lxml==4.9.1
 mysqlclient==2.1.1
 oauthlib==3.2.0
 platformdirs==2.5.2