diff --git a/requirements.txt b/requirements.txt
index c63b5d2..3cf4e07 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,7 +30,7 @@ idna==2.10
 iniconfig==1.1.1
 itsdangerous==1.1.0
 Jinja2==2.11.3
-lxml==4.6.5
+lxml==4.9.1
 MarkupSafe==2.0.1
 mypy-extensions==0.4.3
 orjson==3.5.4