diff --git a/backend/requirements.txt b/backend/requirements.txt
index ce55d2d347a..45c385a9782 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -138,3 +138,5 @@ opentelemetry-instrumentation-requests==0.53b1
 opentelemetry-instrumentation-logging==0.53b1
 opentelemetry-instrumentation-httpx==0.53b1
 opentelemetry-instrumentation-aiohttp-client==0.53b1
+protobuf>=6.33.5 # not directly required, pinned by Snyk to avoid a vulnerability
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability