diff --git a/requirements.txt b/requirements.txt
index feaec64..03da2a7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ bs4==0.0.1
 certifi==2020.4.5.1
 chardet==3.0.4
 idna==2.9
-lxml==4.5.1
+lxml==4.9.1
 mailslurp-client==7.0.10
 python-dateutil==2.8.1
 requests==2.23.0