diff --git a/blog/requirements.txt b/blog/requirements.txt
index 8fc3e2d..9079610 100644
--- a/blog/requirements.txt
+++ b/blog/requirements.txt
@@ -47,7 +47,7 @@ itsdangerous==0.24
 Jinja2==2.10
 kombu==3.0.37
 lazy-object-proxy==1.3.1
-lxml==4.1.1
+lxml==4.6.3
 Mako==1.0.7
 MarkupSafe==1.0
 mccabe==0.6.1