diff --git a/requirements.txt b/requirements.txt
index edda183..7f9eab7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,3 +8,4 @@ torchvision>=0.15.1
 tqdm==4.65.0
 bandit
 matplotlib
+fonttools>=4.43.0 # not directly required, pinned by Snyk to avoid a vulnerability