diff --git a/go.mod b/go.mod
index f0f9313..2247e65 100644
--- a/go.mod
+++ b/go.mod
@@ -1,14 +1,14 @@
 module github.com/opencord/voltha-openolt-adapter
 
-go 1.13
+go 1.16
 
 require (
 	github.com/cenkalti/backoff/v3 v3.1.1
 	github.com/gogo/protobuf v1.3.1
 	github.com/golang/protobuf v1.3.2
 	github.com/grpc-ecosystem/go-grpc-middleware v1.0.1-0.20190118093823-f849b5445de4
-	github.com/opencord/voltha-lib-go/v4 v4.2.2
-	github.com/opencord/voltha-protos/v4 v4.0.15
+	github.com/opencord/voltha-lib-go/v4 v4.2.3
+	github.com/opencord/voltha-protos/v4 v4.1.0
 	go.etcd.io/etcd v0.0.0-20190930204107-236ac2a90522
 	google.golang.org/grpc v1.25.1
 )