diff --git a/lisp/elpaca-bootstrap.el b/lisp/elpaca-bootstrap.el
index 92593a1..f1e837d 100644
--- a/lisp/elpaca-bootstrap.el
+++ b/lisp/elpaca-bootstrap.el
@@ -4,7 +4,7 @@
 ;; Taken from https://github.com/progfolio/elpaca
 
 ;;; Code:
-(defvar elpaca-installer-version 0.3)
+(defvar elpaca-installer-version 0.4)
 (defvar elpaca-directory (expand-file-name "elpaca/" user-emacs-directory))
 (defvar elpaca-builds-directory (expand-file-name "builds/" elpaca-directory))
 (defvar elpaca-repos-directory (expand-file-name "repos/" elpaca-directory))
@@ -19,6 +19,7 @@
   (add-to-list 'load-path (if (file-exists-p build) build repo))
   (unless (file-exists-p repo)
     (make-directory repo t)
+    (when (< emacs-major-version 28) (require 'subr-x))
     (condition-case-unless-debug err
         (if-let ((buffer (pop-to-buffer-same-window "*elpaca-bootstrap*"))
                  ((zerop (call-process "git" nil buffer t "clone"