diff --git a/custom.el b/custom.el
index 2d65681..e5221db 100644
--- a/custom.el
+++ b/custom.el
@@ -7,7 +7,7 @@
  '(magit-commit-arguments (quote ("-S")))
  '(package-selected-packages
    (quote
-    (zoom-window yasnippet-snippets yari yaml-mode which-key web-mode use-package toggle-quotes thrift string-inflection smex smartparens smart-shift smart-mode-line seeing-is-believing scss-mode sass-mode rust-playground ruby-tools ruby-refactor ruby-extra-highlight ruby-compilation rubocopfmt rspec-mode robe rjsx-mode rainbow-mode racer prettier-js plantuml-mode php-mode phi-search package-build neotree multiple-cursors move-dup markdown-mode magit-gh-pulls lua-mode linum-relative json-mode imenu-anywhere ido-vertical-mode ido-completing-read+ highlight-symbol highlight-indentation highlight-indent-guides helm-swoop helm-projectile helm-open-github helm-gtags helm-describe-modes helm-descbinds helm-ag go-projectile go-playground gitignore-mode github-browse-file gitconfig-mode git-timemachine git-link full-ack flycheck-rust flycheck-package flycheck-gometalinter fill-column-indicator feature-mode expand-region exec-path-from-shell evil eslintd-fix editorconfig dumb-jump doom-themes dockerfile-mode direx diminish diff-hl company-go coffee-mode cargo buffer-move browse-kill-ring anzu ace-window))))
+    (zoom-window yasnippet-snippets yari yaml-mode which-key web-mode use-package toggle-quotes thrift string-inflection smex smartparens smart-shift smart-mode-line seeing-is-believing scss-mode sass-mode rust-playground ruby-tools ruby-refactor ruby-extra-highlight ruby-compilation rspec-mode robe rjsx-mode rainbow-mode racer prettier-js plantuml-mode php-mode phi-search package-build neotree multiple-cursors move-dup markdown-mode magit-gh-pulls lua-mode linum-relative json-mode imenu-anywhere ido-vertical-mode ido-completing-read+ highlight-symbol highlight-indentation highlight-indent-guides helm-swoop helm-projectile helm-open-github helm-gtags helm-describe-modes helm-descbinds helm-ag go-projectile go-playground gitignore-mode github-browse-file gitconfig-mode git-timemachine git-link full-ack flycheck-rust flycheck-package flycheck-gometalinter fill-column-indicator feature-mode expand-region exec-path-from-shell evil eslintd-fix editorconfig dumb-jump doom-themes dockerfile-mode direx diminish diff-hl company-go coffee-mode cargo buffer-move browse-kill-ring anzu ace-window))))
 (custom-set-faces
  ;; custom-set-faces was added by Custom.
  ;; If you edit it by hand, you could mess it up, so be careful.
diff --git a/modules/siren-ruby.el b/modules/siren-ruby.el
index f01f898..35ef76a 100644
--- a/modules/siren-ruby.el
+++ b/modules/siren-ruby.el
@@ -116,6 +116,7 @@
   (rspec-install-snippets))
 
 (use-package rubocopfmt
+  :ensure nil ;; loaded from vendor
   :commands (rubocopfmt rubocopfmt-mode)
   :bind (:map ruby-mode-map
               ("C-c C-f" . rubocopfmt))
diff --git a/vendor/rubocopfmt.el b/vendor/rubocopfmt.el
index ba4c200..58445ae 100644
--- a/vendor/rubocopfmt.el
+++ b/vendor/rubocopfmt.el
@@ -1,7 +1,8 @@
-;;; rubocopfmt.el --- Format ruby code with rubocop
+;;; rubocopfmt.el --- Minor-mode to format Ruby code with RuboCop on save
 
-;; Version: 0.1.0
+;; Version: 0.2.2
 ;; Keywords: convenience wp edit ruby rubocop
+;; Package-Requires: ((cl-lib "0.5"))
 ;; URL: https://github.com/jimeh/rubocopfmt.el
 ;; Author: Jim Myhrberg
 
@@ -45,6 +46,8 @@
 
 ;;; Code:
 
+(require 'cl-lib)
+
 (defgroup rubocopfmt nil
   "Minor mode for formatting Ruby buffers with rubocop."
   :group 'languages