diff --git a/requirements.txt b/requirements.txt
index 6d9fb74..ea54eb7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ gunicorn==20.1.0
 h11==0.13.0
 httptools==0.4.0
 idna==3.3
-lxml==4.8.0
+lxml==4.9.1
 numpy==1.22.3
 pandas==1.4.2
 pydantic==1.9.0