diff --git a/python/requirements.txt b/python/requirements.txt
index f2d84f1..556e5e3 100644
--- a/python/requirements.txt
+++ b/python/requirements.txt
@@ -21,10 +21,6 @@
 kubernetes==5.0.0
 netaddr==0.7.19
 networkx==2.0
-nose==1.3.7
-nose-exclude==0.5.0
-nose-testconfig==0.10
-mock==2.0.0
 netifaces==0.10.6
 pcapy==0.11.1
 pep8==1.7.1
@@ -33,7 +29,6 @@
 protobuf-to-dict==0.1.0
 pyflakes==2.1.0
 pylint==1.9.4
-#pypcap>=1.1.5
 pyOpenSSL==17.3.0
 PyYAML==3.12
 requests==2.18.4
@@ -64,5 +59,5 @@
 pexpect==4.6.0
 python-consul==0.6.2
 afkak==3.0.0.dev20181106
-pyvoltha==0.2.0
-voltha-protos==0.1.4
+voltha-protos>=0.1.4
+pyvoltha==0.2.2