diff --git a/python/requirements.txt b/python/requirements.txt
index 56cb356..d6dd15d 100644
--- a/python/requirements.txt
+++ b/python/requirements.txt
@@ -28,7 +28,7 @@
 pcapy==0.11.1
 pep8==1.7.1
 pep8-naming>=0.3.3
-protobuf==3.3.0
+protobuf==3.6.1
 protobuf-to-dict==0.1.0
 pyflakes==1.6.0
 pylint==1.7.6
@@ -60,6 +60,8 @@
 etcd3==0.7.0
 pyparsing==2.2.0
 packaging==17.1
+pyvoltha==0.1.7
+voltha-protos==0.1.0
 
 # python-consul>=0.6.1  we need the pre-released version for now, because 0.6.1 does not
 # yet support Twisted. Once this is released, it will be the 0.6.2 version