diff --git a/debian/patches/0002-fix-version.diff b/debian/patches/0002-fix-version.diff
new file mode 100644
index 0000000..555b614
--- /dev/null
+++ b/debian/patches/0002-fix-version.diff
@@ -0,0 +1,16 @@
+From: Lev Lamberov <dogsleg@debian.org>
+Subject: Fix version number
+
+This patch fixes version number to follow MELPA stable.
+
+--- a/concurrent.el
++++ b/concurrent.el
+@@ -3,7 +3,7 @@
+ ;; Copyright (C) 2010-2016  SAKURAI Masashi
+
+ ;; Author: SAKURAI Masashi <m.sakurai at kiwanami.net>
+-;; Version: 0.5.0
++;; Version: 0.5.1
+ ;; Keywords: deferred, async, concurrent
+ ;; Package-Requires: ((emacs "24.3") (deferred "0.5.0"))
+ ;; URL: https://github.com/kiwanami/emacs-deferred/blob/master/README-concurrent.markdown
diff --git a/debian/patches/series b/debian/patches/series
index db340cf..00dbe6c 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -1 +1,2 @@
 0001-fix-documentation.diff
+0002-fix-version.diff