diff --git a/rw_core/core/device/state/common.go b/rw_core/core/device/state/common.go
index 5353059..778412e 100644
--- a/rw_core/core/device/state/common.go
+++ b/rw_core/core/device/state/common.go
@@ -18,7 +18,7 @@
 package state
 
 import (
-	"github.com/opencord/voltha-lib-go/v3/pkg/log"
+	"github.com/opencord/voltha-lib-go/v4/pkg/log"
 )
 
 var logger log.CLogger
diff --git a/rw_core/core/device/state/transitions.go b/rw_core/core/device/state/transitions.go
index d69d949..81ac69d 100644
--- a/rw_core/core/device/state/transitions.go
+++ b/rw_core/core/device/state/transitions.go
@@ -21,8 +21,8 @@
 	"reflect"
 	"runtime"
 
-	"github.com/opencord/voltha-lib-go/v3/pkg/log"
-	"github.com/opencord/voltha-protos/v3/go/voltha"
+	"github.com/opencord/voltha-lib-go/v4/pkg/log"
+	"github.com/opencord/voltha-protos/v4/go/voltha"
 )
 
 // deviceType mentions type of device like parent, child
diff --git a/rw_core/core/device/state/transitions_test.go b/rw_core/core/device/state/transitions_test.go
index 39d7d0b..a8f96ad 100644
--- a/rw_core/core/device/state/transitions_test.go
+++ b/rw_core/core/device/state/transitions_test.go
@@ -21,7 +21,7 @@
 	"reflect"
 	"testing"
 
-	"github.com/opencord/voltha-protos/v3/go/voltha"
+	"github.com/opencord/voltha-protos/v4/go/voltha"
 	"github.com/stretchr/testify/assert"
 )