diff --git a/platform/mellanox/docker-syncd-mlnx-rpc/Dockerfile.j2 b/platform/mellanox/docker-syncd-mlnx-rpc/Dockerfile.j2
index 93c14a7a71b..023c35d27be 100644
--- a/platform/mellanox/docker-syncd-mlnx-rpc/Dockerfile.j2
+++ b/platform/mellanox/docker-syncd-mlnx-rpc/Dockerfile.j2
@@ -75,7 +75,7 @@ RUN pip3 install cffi==1.16.0    \
  && pip3 install nnpy   \
  && mkdir -p /opt       \
  && cd /opt             \
- && wget https://raw.githubusercontent.com/p4lang/ptf/master/ptf_nn/ptf_nn_agent.py \
+ && wget https://raw.githubusercontent.com/p4lang/ptf/23ebe7237f3c284032bda02fbd1f4a98f1bc12f4/ptf_nn/ptf_nn_agent.py \
  && apt-get clean -y; apt-get autoclean -y; apt-get autoremove -y \
  && rm -rf /root/deps