diff --git a/repositories/flask_refactor/requirements/dev.txt b/repositories/flask_refactor/requirements/dev.txt
index dc509596..d0023837 100644
--- a/repositories/flask_refactor/requirements/dev.txt
+++ b/repositories/flask_refactor/requirements/dev.txt
@@ -45,7 +45,7 @@ docutils==0.20.1
     #   -r docs.txt
     #   sphinx
     #   sphinx-tabs
-filelock==3.13.3
+filelock==3.20.1
     # via
     #   tox
     #   virtualenv