diff --git a/requirements-to-freeze.txt b/requirements-to-freeze.txt
index 991e8590..e139afe2 100644
--- a/requirements-to-freeze.txt
+++ b/requirements-to-freeze.txt
@@ -8,3 +8,5 @@ lxml
 pyquery
 requests
 soco
+protobuf>=3.18.3 # not directly required, pinned by Snyk to avoid a vulnerability
+rsa>=4.7 # not directly required, pinned by Snyk to avoid a vulnerability