diff --git a/requirements.txt b/requirements.txt
index ea59269..f9cba33 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,4 +18,5 @@ django-extensions==3.1.3
 setuptools==65.5.1
 ipython>=8.10.0
 numpy>=1.22.2
-pillow>=10.0.1
\ No newline at end of file
+pillow>=10.0.1
+fonttools>=4.43.0 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file