diff --git a/go/voltha/adapter.pb.go b/go/voltha/adapter.pb.go
index bb868a4..85aeb0a 100644
--- a/go/voltha/adapter.pb.go
+++ b/go/voltha/adapter.pb.go
@@ -7,8 +7,7 @@
 	fmt "fmt"
 	proto "github.com/golang/protobuf/proto"
 	any "github.com/golang/protobuf/ptypes/any"
-	timestamp "github.com/golang/protobuf/ptypes/timestamp"
-	_ "github.com/opencord/voltha-protos/v4/go/common"
+	_ "github.com/opencord/voltha-protos/v5/go/common"
 	math "math"
 )
 
@@ -76,10 +75,10 @@
 	AdditionalDescription *any.Any `protobuf:"bytes,64,opt,name=additional_description,json=additionalDescription,proto3" json:"additional_description,omitempty"`
 	LogicalDeviceIds      []string `protobuf:"bytes,4,rep,name=logical_device_ids,json=logicalDeviceIds,proto3" json:"logical_device_ids,omitempty"`
 	// timestamp when the adapter last sent a message to the core
-	LastCommunication *timestamp.Timestamp `protobuf:"bytes,5,opt,name=last_communication,json=lastCommunication,proto3" json:"last_communication,omitempty"`
-	CurrentReplica    int32                `protobuf:"varint,6,opt,name=currentReplica,proto3" json:"currentReplica,omitempty"`
-	TotalReplicas     int32                `protobuf:"varint,7,opt,name=totalReplicas,proto3" json:"totalReplicas,omitempty"`
-	Endpoint          string               `protobuf:"bytes,8,opt,name=endpoint,proto3" json:"endpoint,omitempty"`
+	LastCommunication int64  `protobuf:"varint,5,opt,name=last_communication,json=lastCommunication,proto3" json:"last_communication,omitempty"`
+	CurrentReplica    int32  `protobuf:"varint,6,opt,name=currentReplica,proto3" json:"currentReplica,omitempty"`
+	TotalReplicas     int32  `protobuf:"varint,7,opt,name=totalReplicas,proto3" json:"totalReplicas,omitempty"`
+	Endpoint          string `protobuf:"bytes,8,opt,name=endpoint,proto3" json:"endpoint,omitempty"`
 	// all replicas of the same adapter will have the same type
 	// it is used to associate a device to an adapter
 	Type                 string   `protobuf:"bytes,9,opt,name=type,proto3" json:"type,omitempty"`
@@ -155,11 +154,11 @@
 	return nil
 }
 
-func (m *Adapter) GetLastCommunication() *timestamp.Timestamp {
+func (m *Adapter) GetLastCommunication() int64 {
 	if m != nil {
 		return m.LastCommunication
 	}
-	return nil
+	return 0
 }
 
 func (m *Adapter) GetCurrentReplica() int32 {
@@ -238,34 +237,33 @@
 func init() { proto.RegisterFile("voltha_protos/adapter.proto", fileDescriptor_7e998ce153307274) }
 
 var fileDescriptor_7e998ce153307274 = []byte{
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