diff --git a/dockers/docker-ptf/Dockerfile.j2 b/dockers/docker-ptf/Dockerfile.j2
index 27bb4053dba..a8df3729702 100644
--- a/dockers/docker-ptf/Dockerfile.j2
+++ b/dockers/docker-ptf/Dockerfile.j2
@@ -249,7 +249,7 @@ RUN rm -rf /debs \
 {% endif %}
     && 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
 
 {% if PTF_ENV_PY_VER == "py3" %}
 RUN curl -L -o tacacs.tar.gz https://shrubbery.net/pub/tac_plus/tacacs-F4.0.4.31.tar.gz\