diff --git a/requirements.txt b/requirements.txt
index fdbb92d93..2df3dbdd1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,3 +5,4 @@ torch==2.8.0
 torchvision==0.23.0
 tqdm==4.66.4
 fonttools>=4.60.0
+filelock>=3.20.1