diff --git a/requirements.txt b/requirements.txt
index 9d13bb9e..7a160547 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ dnspython       ==2.0.0
 feedparser      ==6.0.2
 html5lib        ==1.0.1
 isodate         ==0.6.0
-lxml            ==4.6.3
+lxml            ==4.9.1
 netifaces       ==0.10.9
 PySocks         ==1.7.1
 python-dateutil ==2.8.1