diff --git a/requirements-dev.txt b/requirements-dev.txt
index 5bec5b5..9839865 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -15,7 +15,7 @@ distlib==0.3.8
     # via virtualenv
 exceptiongroup==1.2.2 ; python_full_version < '3.11'
     # via pytest
-filelock==3.20.1
+filelock==3.20.3
     # via
     #   tox
     #   virtualenv