diff --git a/requirements.txt b/requirements.txt
index 85e16aa61..e496bc72e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -32,7 +32,7 @@ docutils==0.21.2
     # via
     #   sphinx
     #   sphinx-rtd-theme
-filelock==3.20.1
+filelock==3.20.3
     # via
     #   tox
     #   virtualenv