diff -Nru muttrc-mode-el-1.2.1/debian/changelog muttrc-mode-el-1.2.1/debian/changelog
--- muttrc-mode-el-1.2.1/debian/changelog	2019-08-26 15:07:58.000000000 +0000
+++ muttrc-mode-el-1.2.1/debian/changelog	2020-12-08 11:55:51.000000000 +0000
@@ -1,3 +1,14 @@
+muttrc-mode-el (1.2.1-3) unstable; urgency=medium
+
+  * Rebuild with dh-elpa 2.0.
+  * Migrate to debhelper-compat 13.
+  * Add Rules-Requires-Root: no.
+  * Drop Enhances emacs25, because the package does not exist in bullseye.
+  * Update my copyright years.
+  * Declare Standards-Version: 4.5.1 (no changes required).
+
+ -- Nicholas D Steeves <nsteeves@gmail.com>  Tue, 08 Dec 2020 06:55:51 -0500
+
 muttrc-mode-el (1.2.1-2) unstable; urgency=medium
 
   * Team upload.
diff -Nru muttrc-mode-el-1.2.1/debian/compat muttrc-mode-el-1.2.1/debian/compat
--- muttrc-mode-el-1.2.1/debian/compat	2019-08-26 15:07:58.000000000 +0000
+++ muttrc-mode-el-1.2.1/debian/compat	1970-01-01 00:00:00.000000000 +0000
@@ -1 +0,0 @@
-11
diff -Nru muttrc-mode-el-1.2.1/debian/control muttrc-mode-el-1.2.1/debian/control
--- muttrc-mode-el-1.2.1/debian/control	2019-08-26 15:07:58.000000000 +0000
+++ muttrc-mode-el-1.2.1/debian/control	2020-12-08 11:55:51.000000000 +0000
@@ -3,10 +3,11 @@
 Priority: optional
 Maintainer: Debian Emacsen team <debian-emacsen@lists.debian.org>
 Uploaders: Nicholas D Steeves <nsteeves@gmail.com>
-Build-Depends: debhelper (>= 11),
- dh-elpa,
- texinfo <!nodoc>
-Standards-Version: 4.2.1
+Build-Depends: debhelper-compat (= 13)
+             , dh-elpa
+             , texinfo <!nodoc>
+Rules-Requires-Root: no
+Standards-Version: 4.5.1
 Homepage: https://github.com/neomutt/muttrc-mode-el
 Vcs-Browser: https://salsa.debian.org/emacsen-team/muttrc-mode-el
 Vcs-Git: https://salsa.debian.org/emacsen-team/muttrc-mode-el.git
@@ -15,8 +16,7 @@
 Architecture: all
 Depends: ${elpa:Depends}, ${misc:Depends}
 Recommends: emacs (>= 46.0)
-Enhances: emacs,
- emacs25
+Enhances: emacs
 Description: Emacs major mode for editing muttrc
  This mode provides syntax highlighting for muttrc and /etc/aliases.
  Basic fontification (via font-lock) appears on strings, comments,
diff -Nru muttrc-mode-el-1.2.1/debian/copyright muttrc-mode-el-1.2.1/debian/copyright
--- muttrc-mode-el-1.2.1/debian/copyright	2019-08-26 15:07:58.000000000 +0000
+++ muttrc-mode-el-1.2.1/debian/copyright	2020-12-08 11:55:51.000000000 +0000
@@ -14,7 +14,7 @@
 License: GPL-2+
 
 Files: debian/*
-Copyright: 2018 Nicholas D Steeves <nsteeves@gmail.com>
+Copyright: 2018-2020 Nicholas D Steeves <nsteeves@gmail.com>
 License: GPL-2+
 
 License: GPL-2+