diff --git a/requirements.txt b/requirements.txt
index f7fe653..07521ed 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ future-annotations==1.0.0
 html5lib==1.1
 idna==3.3
 Jinja2==3.0.2
-lxml==4.6.3
+lxml==4.6.4
 MarkupSafe==2.0.1
 mock==4.0.3
 multidict==5.2.0