diff --git a/querying/models/mnist/requirements.txt b/querying/models/mnist/requirements.txt
index ac988bd..627483d 100644
--- a/querying/models/mnist/requirements.txt
+++ b/querying/models/mnist/requirements.txt
@@ -1,2 +1,3 @@
 torch
 torchvision
+pillow>=8.1.0 # not directly required, pinned by Snyk to avoid a vulnerability