diff --git a/requirements-dev.txt b/requirements-dev.txt
index c5fe70e..5a48ad2 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -26,7 +26,7 @@ docopt==0.6.2
     # via internetarchive
 ffmpeg-python==0.2.0
     # via livecode-archive (pyproject.toml)
-filelock==3.14.0
+filelock==3.20.3
     # via virtualenv
 future==1.0.0
     # via ffmpeg-python