diff --git a/backend/CamStyle/requirements.txt b/backend/CamStyle/requirements.txt
index 28aef66..4725a6b 100644
--- a/backend/CamStyle/requirements.txt
+++ b/backend/CamStyle/requirements.txt
@@ -20,7 +20,7 @@ idna==2.0
 Jinja2>=2.10.1
 language-selector==0.1
 louis==2.6.4
-lxml==3.5.0
+lxml==4.6.3
 Mako==1.0.3
 Markdown==2.6.11
 MarkupSafe==0.23