diff --git a/debian/changelog b/debian/changelog
index bfaabed..9020be2 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -11,6 +11,7 @@ nut (2.7.4-9) UNRELEASED; urgency=medium
 
   [ Laurent Bigonville ]
   * Switch from cdbs to debhelper sequence
+  * Bump debhelper compatibility version to 12
   * Add libltdl-dev to the build-dependencies and fix FTBFS when it is
     installed (Closes: #831740)
   * debian/control: Bump Standards-Version to 4.4.0 (no further changes)
@@ -33,7 +34,7 @@ nut (2.7.4-9) UNRELEASED; urgency=medium
     by nut-server initscript
   * debian/nut-client.lintian-overrides: Drop unused override
 
- -- Laurent Bigonville <bigon@debian.org>  Sat, 27 Jul 2019 15:16:11 +0200
+ -- Laurent Bigonville <bigon@debian.org>  Sat, 27 Jul 2019 17:36:25 +0200
 
 nut (2.7.4-8) unstable; urgency=medium
 
diff --git a/debian/compat b/debian/compat
index ec63514..48082f7 100644
--- a/debian/compat
+++ b/debian/compat
@@ -1 +1 @@
-9
+12
diff --git a/debian/control b/debian/control
index 4ebf1ce..b96f87f 100644
--- a/debian/control
+++ b/debian/control
@@ -3,9 +3,7 @@ Section: admin
 Priority: optional
 Maintainer: Arnaud Quette <aquette@debian.org>
 Uploaders: Laurent Bigonville <bigon@debian.org>
-Build-Depends: autotools-dev,
-               debhelper (>= 9.20160709~),
-               dh-autoreconf,
+Build-Depends: debhelper (>= 12),
                dh-python,
                libfreeipmi-dev (>= 0.8.5) [!hurd-i386],
                libgd-dev | libgd2-xpm-dev | libgd2-noxpm-dev,
@@ -56,6 +54,7 @@ Suggests: nut-cgi, nut-ipmi, nut-snmp, nut-xml
 Conflicts: nut-hal-drivers
 Replaces: nut (<< 2.6.1-2~)
 Breaks: nut (<< 2.6.1-2~)
+Pre-Depends: ${misc:Pre-Depends}
 Description: network UPS tools - core system
  Network UPS Tools (NUT) is a client/server monitoring system that
  allows computers to share uninterruptible power supply (UPS) and
@@ -75,6 +74,7 @@ Recommends: bash-completion
 Suggests: nut-monitor
 Replaces: nut (<< 2.6.1-2~), nut-server (<< 2.6.3-1~), ups-monitor
 Breaks: nut (<< 2.6.1-2~), nut-server (<< 2.6.3-1~)
+Pre-Depends: ${misc:Pre-Depends}
 Description: network UPS tools - clients
  Network UPS Tools (NUT) is a client/server monitoring system that
  allows computers to share uninterruptible power supply (UPS) and
diff --git a/debian/rules b/debian/rules
index 376931d..c56bd51 100755
--- a/debian/rules
+++ b/debian/rules
@@ -35,7 +35,7 @@ ifneq ($(shell which asciidoc),)
 endif
 
 %:
-	dh $@ --with python2 --with python3 --with autoreconf --with systemd
+	dh $@ --no-parallel --with python2 --with python3
 
 override_dh_auto_configure:
 	dh_auto_configure -- $(DEB_CONFIGURE_EXTRA_FLAGS)
@@ -43,9 +43,6 @@ override_dh_auto_configure:
 override_dh_autoreconf:
 	dh_autoreconf --as-needed
 
-override_dh_install:
-	dh_install --list-missing
-
 override_dh_auto_install-arch:
 	dh_auto_install -a
 
@@ -131,10 +128,7 @@ override_dh_auto_install-indep:
 	done
 
 override_dh_installinit:
-	dh_installinit --restart-after-upgrade --error-handler=handle_start_failure
-
-override_dh_systemd_start:
-	dh_systemd_start --restart-after-upgrade
+	dh_installinit --error-handler=handle_start_failure
 
 override_dh_compress:
 	dh_compress -X.pdf