diff --git a/requirements.txt b/requirements.txt
index a204fb3..1b40a47 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -28,7 +28,7 @@ ecdsa==0.19.1
 email_validator==2.2.0
 et_xmlfile==2.0.0
 fastapi==0.116.1
-filelock==3.18.0
+filelock==3.20.1
 frozenlist==1.7.0
 fsspec==2025.7.0
 geomet==1.1.0