diff --git a/app/requirements.txt b/app/requirements.txt
index 1673bb4..e6c1c0b 100644
--- a/app/requirements.txt
+++ b/app/requirements.txt
@@ -41,7 +41,7 @@ Jinja2==2.10
 jmespath==0.9.4
 jsondiff==1.1.1
 jsonpickle==1.1
-lxml==4.3.1
+lxml==4.6.2
 MarkupSafe==1.1.1
 mock==2.0.0
 moto==1.3.7