diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index fda2a6e..d05bb05
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,3 +7,4 @@ pandas
 tqdm
 gdown
 h5py
+filelock>=3.20.3 # not directly required, pinned by Snyk to avoid a vulnerability