diff --git a/requirements.txt b/requirements.txt
index 81b7749..fd013b9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ Flask==2.1.1
 idna==3.3
 itsdangerous==2.1.2
 Jinja2==3.1.1
-lxml==4.8.0
+lxml==4.9.1
 MarkupSafe==2.1.1
 numpy==1.22.3
 pandas==1.4.2