From 6007f4b3811af0cffcacf9a6151e5b9d2f4ef3ae Mon Sep 17 00:00:00 2001
From: Piotr Gawlowicz <gawlowicz@tu-berlin.de>
Date: Tue, 9 May 2023 20:50:41 +0200
Subject: [PATCH] specify protobuf version for python

---
 model/ns3gym/requirements.txt | 4 ++--
 model/ns3gym/setup.py         | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/model/ns3gym/requirements.txt b/model/ns3gym/requirements.txt
index 6fa1f23276..fdbdec9099 100644
--- a/model/ns3gym/requirements.txt
+++ b/model/ns3gym/requirements.txt
@@ -1,4 +1,4 @@
 pyzmq
 numpy
-protobuf
-gym
\ No newline at end of file
+protobuf==3.20.3
+gym
diff --git a/model/ns3gym/setup.py b/model/ns3gym/setup.py
index 2a3bc00be8..0e55ddacf3 100644
--- a/model/ns3gym/setup.py
+++ b/model/ns3gym/setup.py
@@ -27,6 +27,6 @@ def readme():
     description='OpenAI Gym meets ns-3',
     long_description='OpenAI Gym meets ns-3',
     keywords='openAI gym, ML, RL, ns-3',
-    install_requires=['pyzmq', 'numpy', 'protobuf', 'gym'],
+    install_requires=['pyzmq', 'numpy', 'protobuf==3.20.3', 'gym'],
     extras_require={},
 )