diff --git a/requirements.txt b/requirements.txt
index e90cd12..4acd6de 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -39,7 +39,7 @@ kazam==1.4.5
 kiwisolver==1.1.0
 language-selector==0.1
 louis==2.6.4
-lxml==3.5.0
+lxml==4.6.3
 Mako==1.0.3
 Markdown==3.1.1
 MarkupSafe==0.23