diff --git a/app/requirements.txt b/app/requirements.txt
index f00788f..063eaf8 100644
--- a/app/requirements.txt
+++ b/app/requirements.txt
@@ -22,7 +22,7 @@ greenlet==0.4.15
 idna==2.8
 itsdangerous==1.1.0
 Jinja2==2.10.1
-lxml==4.4.1
+lxml==4.6.5
 MarkupSafe==1.1.1
 marshmallow==3.0.0
 mistune==0.8.4