diff --git a/requirements-dev.txt b/requirements-dev.txt
index 95abc45..30fc29d 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -22,7 +22,7 @@ distlib==0.3.9
     # via virtualenv
 executing==2.2.0
     # via stack-data
-filelock==3.18.0
+filelock==3.20.1
     # via virtualenv
 identify==2.6.12
     # via pre-commit