diff --git a/requirements.txt b/requirements.txt
index 7c7fce8..f0e52c0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,7 @@ hyperlink==17.3.1
 idna==2.6
 incremental==17.5.0
 Jinja2==2.9.6
-lxml==4.0.0
+lxml==4.9.1
 MarkupSafe==1.0
 multidict==3.2.0
 parsel==1.2.0