diff --git a/requirements.txt b/requirements.txt
index 84543805..df0e35bb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,3 +9,6 @@ vfb_connect
 better_profanity
 SQLAlchemy>=1.0,<2.0
 dataclasses
+fonttools>=4.43.0 # not directly required, pinned by Snyk to avoid a vulnerability
+numpy>=1.22.2 # not directly required, pinned by Snyk to avoid a vulnerability
+pillow>=10.3.0 # not directly required, pinned by Snyk to avoid a vulnerability