diff --git a/raven/requirements.txt b/raven/requirements.txt
index b5d69dd..4efc06e 100644
--- a/raven/requirements.txt
+++ b/raven/requirements.txt
@@ -14,7 +14,7 @@ isort==5.6.4
 itsdangerous==1.1.0
 Jinja2==2.11.3
 lazy-object-proxy==1.4.3
-lxml==4.6.3
+lxml==4.9.1
 MarkupSafe==1.1.1
 mccabe==0.6.1
 Pillow==8.1.2