diff --git a/protos/voltha_protos/adapter.proto b/protos/voltha_protos/adapter.proto
old mode 100644
new mode 100755
index f7c9ef3..3b13266
--- a/protos/voltha_protos/adapter.proto
+++ b/protos/voltha_protos/adapter.proto
@@ -1,15 +1,14 @@
 syntax = "proto3";
 
-option go_package = "github.com/opencord/voltha-protos/v4/go/voltha";
+option go_package = "github.com/opencord/voltha-protos/v5/go/voltha";
 option java_package = "org.opencord.voltha";
 option java_outer_classname = "VolthaAdapter";
 
 package voltha;
 
-import "google/protobuf/any.proto";
-import "voltha_protos/meta.proto";
-import "google/protobuf/timestamp.proto";
 
+import "voltha_protos/meta.proto";
+import "google/protobuf/any.proto";
 
 message AdapterConfig {
 
@@ -36,7 +35,7 @@
     repeated string logical_device_ids = 4;  // Logical devices "owned"
 
     // timestamp when the adapter last sent a message to the core
-    google.protobuf.Timestamp last_communication = 5;
+    int64 last_communication = 5;
 
     int32 currentReplica = 6;
     int32 totalReplicas = 7;