diff --git a/dockstore-webservice/src/main/resources/requirements/1.13.0/requirements3.txt b/dockstore-webservice/src/main/resources/requirements/1.13.0/requirements3.txt
index 2c6b12cad3..dede29bc0c 100644
--- a/dockstore-webservice/src/main/resources/requirements/1.13.0/requirements3.txt
+++ b/dockstore-webservice/src/main/resources/requirements/1.13.0/requirements3.txt
@@ -13,7 +13,7 @@ humanfriendly==10.0
 idna==3.3
 isodate==0.6.1
 lockfile==0.12.2
-lxml==4.8.0
+lxml==4.9.1
 mistune==0.8.4
 mypy-extensions==0.4.3
 networkx==2.8