diff -Nru systemd-245.4/debian/changelog systemd-245.4/debian/changelog
--- systemd-245.4/debian/changelog	2021-05-27 23:16:17.000000000 +0800
+++ systemd-245.4/debian/changelog	2021-06-30 15:57:37.000000000 +0800
@@ -1,3 +1,10 @@
+systemd (245.4-4ubuntu3.8~1) focal; urgency=medium
+
+  * debian/patches/0001-hwdb-Add-ProBook-to-use-micmute-hotkey.patch
+    - hwdb: Add ProBook to use micmute hotkey
+
+ -- Andy Chi <andy.chi@canonical.com>  Wed, 30 Jun 2021 15:57:37 +0800
+
 systemd (245.4-4ubuntu3.7) focal; urgency=medium
 
   [ Andy Chi ]
diff -Nru systemd-245.4/debian/patches/0001-hwdb-Add-ProBook-to-use-micmute-hotkey.patch systemd-245.4/debian/patches/0001-hwdb-Add-ProBook-to-use-micmute-hotkey.patch
--- systemd-245.4/debian/patches/0001-hwdb-Add-ProBook-to-use-micmute-hotkey.patch	1970-01-01 08:00:00.000000000 +0800
+++ systemd-245.4/debian/patches/0001-hwdb-Add-ProBook-to-use-micmute-hotkey.patch	2021-06-30 15:56:32.000000000 +0800
@@ -0,0 +1,28 @@
+From a7161e0288d1fc82e4a2de876995d834c8640027 Mon Sep 17 00:00:00 2001
+From: Kai-Heng Feng <kai.heng.feng@canonical.com>
+Date: Fri, 4 Jun 2021 00:20:32 +0800
+Subject: [PATCH] hwdb: Add ProBook to use micmute hotkey
+
+Like HP EliteBooks and ZBooks, all ProBooks use the same micmute
+scancode.
+---
+ hwdb.d/60-keyboard.hwdb | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+Index: systemd/hwdb.d/60-keyboard.hwdb
+===================================================================
+--- systemd.orig/hwdb.d/60-keyboard.hwdb
++++ systemd/hwdb.d/60-keyboard.hwdb
+@@ -593,9 +593,9 @@ evdev:atkbd:dmi:bvn*:bvr*:bd*:svnHewlett
+ evdev:atkbd:dmi:bvn*:bvr*:bd*:svnHP*:pnHPEliteBook*:pvr*
+ # HP ProBook 440 G2
+ evdev:atkbd:dmi:bvn*:bvr*:bd*:svnHewlett-Packard*:pnHP440G2:pvr*
+-# several HP ProBooks 4xx
+-evdev:atkbd:dmi:bvn*:bvr*:bd*:svnHewlett-Packard*:pnHP*ProBook4*:pvr*
+-evdev:atkbd:dmi:bvn*:bvr*:bd*:svnHP*:pnHP*ProBook*4*:pvr*
++# HP ProBook
++evdev:atkbd:dmi:bvn*:bvr*:bd*:svnHewlett-Packard*:pnHP*ProBook*:*
++evdev:atkbd:dmi:bvn*:bvr*:bd*:svnHP*:pnHP*ProBook*:*
+ # HP ZBook
+ evdev:atkbd:dmi:bvn*:bvr*:bd*:svnHewlett-Packard*:pnHPZBook*:pvr*
+ evdev:atkbd:dmi:bvn*:bvr*:bd*:svnHP*:pnHPZBook*:pvr*
diff -Nru systemd-245.4/debian/patches/series systemd-245.4/debian/patches/series
--- systemd-245.4/debian/patches/series	2021-05-27 23:16:03.000000000 +0800
+++ systemd-245.4/debian/patches/series	2021-06-30 15:55:17.000000000 +0800
@@ -125,3 +125,4 @@
 lp1929560-network-move-set-MAC-and-set-nomaster-operations-out.patch
 lp1902891-core-mount-mount-command-may-fail-after-adding-the-c.patch
 lp1785383-resolved-address-DVE-2018-0001.patch
+0001-hwdb-Add-ProBook-to-use-micmute-hotkey.patch