diff --git a/backend/requirements.txt b/backend/requirements.txt
index deda9ee..08deceb 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -26,7 +26,7 @@ itsdangerous==1.1.0
 Jinja2==2.10
 jmespath==0.9.3
 jsonschema==2.6.0
-lxml==4.2.5
+lxml==4.9.1
 MarkupSafe==1.1.0
 mysqlclient==1.3.14
 pathspec==0.5.5