diff --git a/requirements.txt b/requirements.txt
index a3f00dc..7f86c92 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -38,7 +38,7 @@ itsdangerous==1.1.0
 Jinja2==2.11.1
 knowit==0.2.4
 lockfile==0.12.2
-lxml==4.6.2
+lxml==4.6.3
 Mako==1.0.9
 markdown2==2.3.6
 MarkupSafe==1.1.1