[VOL-3419] Supporting new flow format.
Releasing version 1.3.0

Change-Id: Ie35c06c62797cc5966305a0a82492600a0dec871
diff --git a/internal/bbsim/devices/olt_test.go b/internal/bbsim/devices/olt_test.go
index 1536baf..0081ffa 100644
--- a/internal/bbsim/devices/olt_test.go
+++ b/internal/bbsim/devices/olt_test.go
@@ -21,7 +21,7 @@
 	"net"
 	"testing"
 
-	"github.com/opencord/voltha-protos/v3/go/openolt"
+	"github.com/opencord/voltha-protos/v4/go/openolt"
 	"gotest.tools/assert"
 )