diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index c37098c..d5f1e16
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@ gunicorn==19.8.1
 html5lib==1.0.1
 humanize==0.5.1
 idna==2.6
-lxml==4.2.1
+lxml==4.9.1
 maya==0.5.0
 mysqlclient==1.3.12
 pdfrw==0.4