diff --git a/machine-learning/image-classifier-using-transfer-learning/requirements.txt b/machine-learning/image-classifier-using-transfer-learning/requirements.txt
index a80a67d2..740ce5f7 100644
--- a/machine-learning/image-classifier-using-transfer-learning/requirements.txt
+++ b/machine-learning/image-classifier-using-transfer-learning/requirements.txt
@@ -1,3 +1,4 @@
 tensorflow
 numpy
-matplotlib
\ No newline at end of file
+matplotlib
+protobuf>=6.33.5 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file