VOL-3121 - Added filter argument to ports_state_update().

Change-Id: If39886bd5b103fa3dbcf4d6bffbde1cc497901b0
diff --git a/requirements.txt b/requirements.txt
index e293cea..9b2d2cb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,4 +18,4 @@
 structlog==19.2.0
 transitions==0.6.4
 txaioetcd==0.3.0
-voltha-protos==3.4.0
+voltha-protos==3.4.1