Use org-plus-contrib instead of elpa org

.emacs.d/init.el

@@ -24,6 +24,7 @@
 ;;;; packaging related stuff
 (require 'package)
 (add-to-list 'package-archives '("melpa" . "https://melpa.org/packages/"))
+(add-to-list 'package-archives '("org" . "https://orgmode.org/elpa/") t)
 (package-initialize)
 (unless (package-installed-p 'use-package)
   (package-refresh-contents)
@@ -178,7 +179,7 @@
   (add-hook 'gud-mode-hook
             '(lambda () (setq-local comint-prompt-read-only t))))
 
-(use-package org
+(use-package org :ensure org-plus-contrib
   :bind (:map org-mode-map (("C-z" . org-latex-export-to-pdf-no-kr)
                             ("M-[" . org-metaleft)
                             ("M-]" . org-metaright)