diff --git a/model/ns3gym/requirements.txt b/model/ns3gym/requirements.txt
index 02ec117e15..6fa1f23276 100644
--- a/model/ns3gym/requirements.txt
+++ b/model/ns3gym/requirements.txt
@@ -1 +1,4 @@
 pyzmq
+numpy
+protobuf
+gym
\ No newline at end of file
diff --git a/model/ns3gym/setup.py b/model/ns3gym/setup.py
index e48eeb97a0..e0ee83e2d7 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', 'protobuf3', 'gym'],
+    install_requires=['pyzmq', 'numpy', 'protobuf', 'gym'],
     extras_require={},
 )