diff --git a/requirements.txt b/requirements.txt
index ca035a5..494aef2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,7 @@ Jinja2==2.9.5
 jsonschema==2.6.0
 language-selector==0.1
 louis==2.6.4
-lxml==3.5.0
+lxml==4.6.3
 Magic-file-extensions==0.2
 Mako==1.0.3
 MarkupSafe==0.23