diff --git a/requirements.txt b/requirements.txt
index 4d7cda9..c7e23bc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ chardet==3.0.4
 docutils==0.15.2
 idna==2.9
 jmespath==0.10.0
-lxml==4.5.1
+lxml==4.9.1
 python-dateutil==2.8.1
 python-dotenv==0.13.0
 requests==2.23.0