diff --git a/go/voltha/ponsim.pb.go b/go/voltha/ponsim.pb.go
index 1dc6e94..4b49c5b 100644
--- a/go/voltha/ponsim.pb.go
+++ b/go/voltha/ponsim.pb.go
@@ -8,7 +8,7 @@
 	fmt "fmt"
 	proto "github.com/golang/protobuf/proto"
 	empty "github.com/golang/protobuf/ptypes/empty"
-	openflow_13 "github.com/opencord/voltha-protos/v3/go/openflow_13"
+	openflow_13 "github.com/opencord/voltha-protos/v4/go/openflow_13"
 	grpc "google.golang.org/grpc"
 	math "math"
 )
@@ -414,43 +414,43 @@
 func init() { proto.RegisterFile("voltha_protos/ponsim.proto", fileDescriptor_352253851b8ea7c0) }
 
 var fileDescriptor_352253851b8ea7c0 = []byte{
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 }
 
 // Reference imports to suppress errors if they are not otherwise used.