diff --git a/requirements.txt b/requirements.txt
index 9d2cfbe..e7b4d5b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1,2 @@
-rook>=0.1.209
\ No newline at end of file
+rook>=0.1.209
+protobuf>=6.33.5 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file