diff --git a/requirements-to-freeze.txt b/requirements-to-freeze.txt
index 991e8590..e6487bf1 100644
--- a/requirements-to-freeze.txt
+++ b/requirements-to-freeze.txt
@@ -8,3 +8,6 @@ lxml
 pyquery
 requests
 soco
+protobuf>=4.25.8 # not directly required, pinned by Snyk to avoid a vulnerability
+urllib3>=2.2.2 # not directly required, pinned by Snyk to avoid a vulnerability
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability