[VOL-5527] update nni stats

Change-Id: If8ddd9fa8c7a68e43bcf3b6e33e6ba20f3a99db2
Signed-off-by: Akash Reddy Kankanala <akash.kankanala@radisys.com>
diff --git a/go.mod b/go.mod
index 35847d7..b95ac69 100644
--- a/go.mod
+++ b/go.mod
@@ -14,7 +14,7 @@
 	github.com/jessevdk/go-flags v1.4.0
 	github.com/jhump/protoreflect v1.10.2
 	github.com/opencord/voltha-lib-go/v7 v7.6.3
-	github.com/opencord/voltha-protos/v5 v5.6.6
+	github.com/opencord/voltha-protos/v5 v5.6.8
 	github.com/stretchr/testify v1.8.1
 	google.golang.org/grpc v1.56.2
 	gopkg.in/yaml.v2 v2.4.0