diff -Nru bm-el-201905/debian/changelog bm-el-201905/debian/changelog
--- bm-el-201905/debian/changelog	2019-07-08 17:15:00.000000000 +0000
+++ bm-el-201905/debian/changelog	2020-11-27 15:42:38.000000000 +0000
@@ -1,3 +1,14 @@
+bm-el (201905-2) 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>  Fri, 27 Nov 2020 10:42:38 -0500
+
 bm-el (201905-1) unstable; urgency=medium
 
   * New upstream version.
diff -Nru bm-el-201905/debian/control bm-el-201905/debian/control
--- bm-el-201905/debian/control	2019-07-08 17:15:00.000000000 +0000
+++ bm-el-201905/debian/control	2020-11-27 15:42:38.000000000 +0000
@@ -3,9 +3,10 @@
 Priority: optional
 Maintainer: Debian Emacsen team <debian-emacsen@lists.debian.org>
 Uploaders: Nicholas D Steeves <nsteeves@gmail.com>
-Build-Depends: debhelper-compat (= 12),
- dh-elpa
-Standards-Version: 4.4.0
+Build-Depends: debhelper-compat (= 13),
+               dh-elpa
+Rules-Requires-Root: no
+Standards-Version: 4.5.1
 Vcs-Browser: https://salsa.debian.org/emacsen-team/bm-el
 Vcs-Git: https://salsa.debian.org/emacsen-team/bm-el.git
 Homepage: https://github.com/joodland/bm
@@ -15,8 +16,7 @@
 Architecture: all
 Depends: ${elpa:Depends}, ${misc:Depends}
 Recommends: emacs (>= 46.0)
-Enhances: emacs,
- emacs25
+Enhances: emacs
 Description: visual bookmarks for GNU Emacs
  Bm.el enables visible bookmarks in GNU Emacs.
  .
diff -Nru bm-el-201905/debian/copyright bm-el-201905/debian/copyright
--- bm-el-201905/debian/copyright	2019-07-08 17:15:00.000000000 +0000
+++ bm-el-201905/debian/copyright	2020-11-27 15:42:38.000000000 +0000
@@ -13,7 +13,7 @@
 License: GPL-2+
 
 Files: debian/*
-Copyright: 2018-2019  Nicholas D Steeves <nsteeves@gmail.com>
+Copyright: 2018-2020  Nicholas D Steeves <nsteeves@gmail.com>
 License: GPL-2+
 
 License: GPL-2+