diff --git a/requirements/py36-reqs/tests.txt b/requirements/py36-reqs/tests.txt
index 0d1d106e..378593d7 100644
--- a/requirements/py36-reqs/tests.txt
+++ b/requirements/py36-reqs/tests.txt
@@ -75,7 +75,7 @@ elasticsearch==7.13.4
     # via
     #   -r requirements/py36-reqs/install.txt
     #   snafu (setup.cfg)
-filelock==3.4.1
+filelock==3.20.1
     # via
     #   tox
     #   virtualenv