diff --git a/download/download.go b/download/download.go
index fa8d01f..7dcd9a6 100644
--- a/download/download.go
+++ b/download/download.go
@@ -3,6 +3,7 @@ package download
 import (
 	"errors"
 	"log"
+	"net/url"
 	"os"
 	"path/filepath"
 	"strings"
@@ -63,7 +64,17 @@ func download(path, dest string, firstAttempt bool) (root *vcs.RepoRoot, err err
 		if root.VCS.Name == "Git" {
 			root.VCS.CreateCmd = "clone --depth 1 {repo} {dir}"
 		}
-		err = root.VCS.Create(fullLocalPath, root.Repo)
+		var rootRepo = root.Repo
+		u, err := url.Parse(root.Repo)
+		if err != nil {
+			log.Printf("WARN: could not parse root.Repo: %v", err)
+		} else {
+			if u.Host == "github.com" {
+				u.User = url.UserPassword("gojp", "gojp")
+				rootRepo = u.String()
+			}
+		}
+		err = root.VCS.Create(fullLocalPath, rootRepo)
 		if err != nil {
 			return root, err
 		}