diff --git a/server/requirements.txt b/server/requirements.txt
index 3639616..aa7802a 100644
--- a/server/requirements.txt
+++ b/server/requirements.txt
@@ -37,7 +37,7 @@ Jinja2==2.11.3
 joblib==1.0.0
 kiwisolver==1.3.1
 kombu==5.0.2
-lxml==4.6.2
+lxml==4.9.1
 MarkupSafe==1.1.1
 matplotlib==3.3.3
 murmurhash==1.0.5