diff --git a/README.md b/README.md
index e41f2c3..5ff8d36 100644
--- a/README.md
+++ b/README.md
@@ -3,3 +3,4 @@
 mdadm is a program that can be used to create, manage, and monitor Linux MD (Software RAID) devices.
 As such is provides similar functionality to the raidtools packages.
 The particular differences to raidtools is that mdadm is a single program, and it can perform (almost) all functions without a configuration file (that a config file can be used to help with some common tasks).
+
diff --git a/mdadm.spec b/mdadm.spec
index 0245f4a..098f1a8 100644
--- a/mdadm.spec
+++ b/mdadm.spec
@@ -1,12 +1,12 @@
 Name:          mdadm
-Version:       4.1
-Release:       2mamba
+Version:       4.2
+Release:       1mamba
 Summary:       A tool to manage MD devices aka Linux Software RAID
 Group:         System/Kernel and Hardware
 Vendor:        openmamba
 Distribution:  openmamba
-Packager:      Stefano Cotta Ramusino <stefano.cotta@openmamba.org>
-URL:           http://neil.brown.name/blog/mdadm
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/
 Source:        http://www.kernel.org/pub/linux/utils/raid/mdadm/mdadm-%{version}.tar.xz
 Patch0:        mdadm-3.3.1-gcc-4.9.patch
 Patch1:        mdadm-3.4-i586-gcc-5.3.0.patch
@@ -14,24 +14,17 @@ Patch2:        mdadm-4.1-no-Werror.patch
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
+BuildRequires: libudev-devel
 ## AUTOBUILDREQ-END
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 %systemd_requires
 Provides:      mdadm-static
-Obsoletes:     mdadm-static
+Obsoletes:     mdadm-static < 4.1
 
 %description
 mdadm is a program that can be used to create, manage, and monitor Linux MD (Software RAID) devices.
 As such is provides similar functionality to the raidtools packages.
 The particular differences to raidtools is that mdadm is a single program, and it can perform (almost) all functions without a configuration file (that a config file can be used to help with some common tasks).
 
-#%package static
-#Group:         System/Kernel and Hardware
-#Summary:       A tool to manage MD devices aka Linux Software RAID (static binary)
-#
-#%description static
-#A tool to manage MD devices aka Linux Software RAID (static binary).
-
 %debug_package
 
 %prep
@@ -42,14 +35,16 @@ The particular differences to raidtools is that mdadm is a single program, and i
 %patch2 -p1
 
 %build
-%make
+%make \
+   SYSTEMD_DIR=%{_unitdir}
 
-#%make mdadm.static
+#% make mdadm.static
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 %makeinstall install-systemd \
-   BINDIR=/sbin
+   SYSTEMD_DIR=%{_unitdir} \
+   BINDIR=%{_sbindir}
 
 install -D -m 644 %{name}.conf-example \
    %{buildroot}%{_sysconfdir}/%{name}.conf
@@ -63,10 +58,16 @@ install -D -m 644 %{name}.conf-example \
 %files
 %defattr(-,root,root)
 %config(noreplace,missingok)/%{_sysconfdir}/mdadm.conf
-/sbin/%{name}
-/sbin/mdmon
+%{_sbindir}/%{name}
+%{_sbindir}/mdmon
 %{_udevrulesdir}/*.rules
-/lib/systemd/system-shutdown/mdadm.shutdown
+%{_systemd_util_dir}/system-shutdown/mdadm.shutdown
+%{_unitdir}/mdcheck_continue.service
+%{_unitdir}/mdcheck_continue.timer
+%{_unitdir}/mdcheck_start.service
+%{_unitdir}/mdcheck_start.timer
+%{_unitdir}/mdmonitor-oneshot.service
+%{_unitdir}/mdmonitor-oneshot.timer
 %{_unitdir}/mdadm-grow-continue@.service
 %{_unitdir}/mdadm-last-resort@.service
 %{_unitdir}/mdadm-last-resort@.timer
@@ -78,11 +79,10 @@ install -D -m 644 %{name}.conf-example \
 %doc COPYING
 # ChangeLog README.initramfs TODO
 
-#%files static
-#%defattr(-,root,root)
-#%{_sbindir}/%{name}.static
-
 %changelog
+* Tue Jan 11 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 4.2-1mamba
+- update to 4.2
+
 * Tue Dec 08 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 4.1-2mamba
 - rebuilt with debug package