diff --git a/requirements.txt b/requirements.txt
index 63bf660..fcb6953 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,3 +4,5 @@ markdown
 pyyaml
 matplotlib
 configparser
+fonttools>=4.43.0 # not directly required, pinned by Snyk to avoid a vulnerability
+pillow>=10.2.0 # not directly required, pinned by Snyk to avoid a vulnerability