diff --git a/requirements_common.txt b/requirements_common.txt
index bb635321a39..be003daf7c0 100644
--- a/requirements_common.txt
+++ b/requirements_common.txt
@@ -11,7 +11,7 @@ gunicorn==19.9.0; python_version < '3.0'
 gunicorn==20.0.4; python_version >= '3.0'
 internetarchive==1.9.6
 isbnlib==3.9.3
-lxml==4.6.2
+lxml==4.9.1
 Pillow==6.2.2; python_version < '3.0'
 Pillow==8.0.1; python_version >= '3.0'
 psycopg2==2.8.4