diff --git a/internal/pkg/core/olt_platform_test.go b/internal/pkg/core/olt_platform_test.go
index 7661869..d38b9fb 100644
--- a/internal/pkg/core/olt_platform_test.go
+++ b/internal/pkg/core/olt_platform_test.go
@@ -19,10 +19,10 @@
 
 import (
 	"context"
-	fu "github.com/opencord/voltha-lib-go/v3/pkg/flows"
+	fu "github.com/opencord/voltha-lib-go/v4/pkg/flows"
 	"github.com/opencord/voltha-openolt-adapter/internal/pkg/olterrors"
-	ofp "github.com/opencord/voltha-protos/v3/go/openflow_13"
-	"github.com/opencord/voltha-protos/v3/go/voltha"
+	ofp "github.com/opencord/voltha-protos/v4/go/openflow_13"
+	"github.com/opencord/voltha-protos/v4/go/voltha"
 	"math"
 	"reflect"
 	"testing"