diff --git a/cmd/internal/database/postgres/postgres.go b/cmd/internal/database/postgres/postgres.go
index 9172133..103ec7d 100644
--- a/cmd/internal/database/postgres/postgres.go
+++ b/cmd/internal/database/postgres/postgres.go
@@ -248,7 +248,7 @@ func (db *Postgres) Upgrade() error {
 
 	// mkdir /data/postgres-new
 	newDataDirTemp := path.Join("/data", "postgres-new")
-	err = os.MkdirAll(newDataDirTemp, fs.ModePerm)
+	err = os.Mkdir(newDataDirTemp, 0700)
 	if err != nil {
 		db.log.Infow("unable to create new datadir, skipping upgrade", "error", err)
 		return nil