gRPC migration

Change-Id: I3129ae27d7ee12a23c7046f0d877e8064f2fd7f4
diff --git a/internal/core/server.go b/internal/core/server.go
index 8a5dfd6..a2c609a 100644
--- a/internal/core/server.go
+++ b/internal/core/server.go
@@ -21,7 +21,7 @@
 	"encoding/json"
 	"fmt"
 	"github.com/gorilla/mux"
-	"github.com/opencord/voltha-lib-go/v4/pkg/log"
+	"github.com/opencord/voltha-lib-go/v7/pkg/log"
 	"net/http"
 	"sync"
 )