diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index 5f607e1..1982b4b
--- a/requirements.txt
+++ b/requirements.txt
@@ -44,7 +44,7 @@ keyring==12.0.1
 keyrings.alt==3.0
 language-selector==0.1
 louis==2.6.4
-lxml==3.5.0
+lxml==4.6.2
 Mako==1.0.3
 Markdown==3.0.1
 MarkupSafe==0.23