diff --git a/requirements.txt b/requirements.txt
index 0ecd0cc..7afd51f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 redis==3.5.2
 python_whois==0.7.2
-lxml==4.6.3
+lxml==4.9.1
 paramiko==2.7.1
 requests==2.23.0
 netaddr==0.7.19