diff --git a/requirements.txt b/requirements.txt
index 77d4954..d259981 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,6 +5,6 @@ Flask-Migrate==2.5.2
 Flask-WTF==0.14.3
 WTForms==2.2.1
 SQLAlchemy==1.3.15
-lxml==4.5.0
+lxml==4.9.1
 requests==2.23.0
 Werkzeug==1.0.0
\ No newline at end of file