--- a/flycheck.el
+++ b/flycheck.el
@@ -10,7 +10,7 @@
 ;; URL: http://www.flycheck.org
 ;; Keywords: convenience, languages, tools
 ;; Version: 32
-;; Package-Requires: ((dash "2.12.1") (pkg-info "0.4") (let-alist "1.0.4") (seq "1.11") (emacs "24.3"))
+;; Package-Requires: ((dash "2.12.1") (let-alist "1.0.4") (seq "1.11") (emacs "24.3"))
 
 ;; This file is not part of GNU Emacs.
 
@@ -81,15 +81,13 @@
 (require 'find-func)             ; `find-function-regexp-alist'
 (require 'json)                  ; `flycheck-parse-tslint'
 (require 'ansi-color)            ; `flycheck-parse-with-patterns-without-color'
+(require 'lisp-mnt)              ; `lm-version'
 
 
 ;; Declare a bunch of dynamic variables that we need from other modes
 (defvar sh-shell)                       ; For shell script checker predicates
 (defvar ess-language)                   ; For r-lintr predicate
 
-;; Tell the byte compiler about autoloaded functions from packages
-(declare-function pkg-info-version-info "pkg-info" (package))
-
 
 ;;; Compatibility
 (eval-and-compile
@@ -1275,7 +1273,7 @@
 if called interactively, or if SHOW-VERSION is non-nil, otherwise
 just return nil."
   (interactive (list t))
-  (let ((version (pkg-info-version-info 'flycheck)))
+  (let ((version (lm-version (find-library-name "flycheck"))))
     (when show-version
       (message "Flycheck version: %s" version))
     version))