diff --git a/cmd/joj3/conf.go b/cmd/joj3/conf.go
index 8050a90..1d5b59a 100644
--- a/cmd/joj3/conf.go
+++ b/cmd/joj3/conf.go
@@ -87,10 +87,7 @@ func parseMetaConfFile(path string) (metaConf MetaConf, err error) {
 		}, nil
 	}
 	d := &multiconfig.DefaultLoader{}
-	d.Loader = multiconfig.MultiLoader(
-		&multiconfig.TagLoader{},
-		&multiconfig.JSONLoader{Path: path},
-	)
+	d.Loader = multiconfig.NewWithPath(path)
 	d.Validator = multiconfig.MultiValidator(&multiconfig.RequiredValidator{})
 	if err = d.Load(&metaConf); err != nil {
 		slog.Error("parse meta conf", "error", err)
diff --git a/cmd/joj3/main.go b/cmd/joj3/main.go
index 65e03bd..1862f22 100644
--- a/cmd/joj3/main.go
+++ b/cmd/joj3/main.go
@@ -95,7 +95,7 @@ var (
 )
 
 func init() {
-	flag.StringVar(&metaConfPath, "meta-conf", "meta-conf.json", "meta config file path")
+	flag.StringVar(&metaConfPath, "meta-conf", "meta-conf.toml", "meta config file path")
 	flag.StringVar(&msg, "msg", "", "message to trigger the running, leave empty to use git commit message on HEAD")
 }