VOL-3677 - move to v4 of protos and lib

Change-Id: Ie9d215f69b798dbf2b879d8e7d041c0d671f84c0
diff --git a/internal/pkg/onuadaptercore/common.go b/internal/pkg/onuadaptercore/common.go
index f4d7e06..e011f04 100644
--- a/internal/pkg/onuadaptercore/common.go
+++ b/internal/pkg/onuadaptercore/common.go
@@ -18,15 +18,15 @@
 package adaptercoreonu
 
 import (
-	"github.com/opencord/voltha-lib-go/v3/pkg/log"
+	"github.com/opencord/voltha-lib-go/v4/pkg/log"
 )
 
-var logger log.Logger
+var logger log.CLogger
 
 func init() {
 	// Setup this package so that it's log level can be modified at run time
 	var err error
-	logger, err = log.AddPackage(log.JSON, log.ErrorLevel, log.Fields{"pkg": "adaptercoreonu"})
+	logger, err = log.RegisterPackage(log.JSON, log.ErrorLevel, log.Fields{"pkg": "adaptercoreonu"})
 	if err != nil {
 		panic(err)
 	}