diff --git a/requirements/tests.txt b/requirements/tests.txt
index 51395a2..9131e74 100644
--- a/requirements/tests.txt
+++ b/requirements/tests.txt
@@ -3,7 +3,7 @@ coverage==4.5.1
 html5lib==1.0.1
 mock==2.0.0
 Jinja2==2.10.1
-lxml==4.6.3
+lxml==4.9.1
 beautifulsoup4==4.6.3
 django-sekizai==0.10.0
 csscompressor==0.9.5