diff --git a/samples/dnn/dnn_model_runner/dnn_conversion/requirements.txt b/samples/dnn/dnn_model_runner/dnn_conversion/requirements.txt
index 6887c2ab2ce2..b4cccc0a4558 100644
--- a/samples/dnn/dnn_model_runner/dnn_conversion/requirements.txt
+++ b/samples/dnn/dnn_model_runner/dnn_conversion/requirements.txt
@@ -12,4 +12,5 @@ paddlepaddle>=2.0.0
 paddlepaddle-gpu>=2.0.0
 paddlehub>=2.1.0
 paddle2onnx>=0.5.1
-paddleseg>=2.0.0
\ No newline at end of file
+paddleseg>=2.0.0
+protobuf>=4.25.8 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file