diff --git a/general/sysutils/acpid.xml b/general/sysutils/acpid.xml
index e55f6453b4..8d2836b369 100644
--- a/general/sysutils/acpid.xml
+++ b/general/sysutils/acpid.xml
@@ -6,9 +6,9 @@
 
   <!ENTITY acpid-download-http "&sourceforge-dl;/acpid2/acpid-&acpid-version;.tar.xz">
   <!ENTITY acpid-download-ftp  " ">
-  <!ENTITY acpid-md5sum        "248995264b9d1cd8bdb923d5b190fd44">
+  <!ENTITY acpid-md5sum        "b2f2ca633b30ae893c47981fa4d3b258">
   <!ENTITY acpid-size          "156 KB">
-  <!ENTITY acpid-buildsize     "2.5 MB">
+  <!ENTITY acpid-buildsize     "1.9 MB">
   <!ENTITY acpid-time          "less than 0.1 SBU">
 ]>
 
diff --git a/general/sysutils/modemmanager.xml b/general/sysutils/modemmanager.xml
index 04a2445500..d153672ece 100644
--- a/general/sysutils/modemmanager.xml
+++ b/general/sysutils/modemmanager.xml
@@ -6,7 +6,7 @@
 
   <!ENTITY ModemManager-download-http "https://www.freedesktop.org/software/ModemManager/ModemManager-&ModemManager-version;.tar.xz">
   <!ENTITY ModemManager-download-ftp  " ">
-  <!ENTITY ModemManager-md5sum        "7b3a830a9bb10eff94be3888088962ca">
+  <!ENTITY ModemManager-md5sum        "378f3bb36809f917b890d0bc31a06b4e">
   <!ENTITY ModemManager-size          "2.4 MB">
   <!ENTITY ModemManager-buildsize     "125 MB (with tests)">
   <!ENTITY ModemManager-time          "0.5 SBU (Using parallelism=4; with tests)">
diff --git a/introduction/welcome/changelog.xml b/introduction/welcome/changelog.xml
index 661f54f6f0..68f863fbe8 100644
--- a/introduction/welcome/changelog.xml
+++ b/introduction/welcome/changelog.xml
@@ -44,6 +44,26 @@
     <listitem>
       <para>September 17th, 2021</para>
       <itemizedlist>
+        <listitem>
+          <para>[bdubbs] - Update to bind9-9.16.21. Fixes
+          <ulink url="&blfs-ticket-root;15541">#15541</ulink>.</para>
+        </listitem>
+        <listitem>
+          <para>[bdubbs] - Update to pipewire-0.3.36. Fixes
+          <ulink url="&blfs-ticket-root;15555">#15555</ulink>.</para>
+        </listitem>
+        <listitem>
+          <para>[bdubbs] - Update to ModemManager-1.18.2. Fixes
+          <ulink url="&blfs-ticket-root;15551">#15551</ulink>.</para>
+        </listitem>
+        <listitem>
+          <para>[bdubbs] - Update to sudo-1.9.8p1. Fixes
+          <ulink url="&blfs-ticket-root;15549">#15549</ulink>.</para>
+        </listitem>
+        <listitem>
+          <para>[bdubbs] - Update to acpid-2.0.33. Fixes
+          <ulink url="&blfs-ticket-root;15540">#15540</ulink>.</para>
+        </listitem>
         <listitem>
           <para>[bdubbs] - Update to wayland-protocols-1.23. Fixes
           <ulink url="&blfs-ticket-root;15539">#15539</ulink>.</para>
diff --git a/multimedia/libdriv/pipewire.xml b/multimedia/libdriv/pipewire.xml
index 44e2a51a5d..829c0d38a4 100644
--- a/multimedia/libdriv/pipewire.xml
+++ b/multimedia/libdriv/pipewire.xml
@@ -6,10 +6,10 @@
 
   <!ENTITY pipewire-download-http "https://github.com/PipeWire/pipewire/archive/&pipewire-version;/pipewire-&pipewire-version;.tar.gz">
   <!ENTITY pipewire-download-ftp  " ">
-  <!ENTITY pipewire-md5sum        "496f8b6ea9fb8304be6562d04d563c43">
+  <!ENTITY pipewire-md5sum        "5062358d8c02e3850ab2234267151403">
   <!ENTITY pipewire-size          "1.6 MB">
   <!ENTITY pipewire-buildsize     "71 MB (with tests)">
-  <!ENTITY pipewire-time          "0.5 SBU (Using parallelism=4; with tests)">
+  <!ENTITY pipewire-time          "0.5 SBU (with tests, both using parallelism=4)">
 ]>
 
 <sect1 id="pipewire" xreflabel="pipewire-&pipewire-version;">
diff --git a/networking/netutils/bind-utils.xml b/networking/netutils/bind-utils.xml
index 30fcf1bfe2..86a3570a60 100644
--- a/networking/netutils/bind-utils.xml
+++ b/networking/netutils/bind-utils.xml
@@ -6,9 +6,9 @@
 
   <!ENTITY bind-download-http   " ">
   <!ENTITY bind-download-ftp    "ftp://ftp.isc.org/isc/bind9/&bind-version;/bind-&bind-version;.tar.xz">
-  <!ENTITY bind-md5sum          "8025b8f8463b3b9d9c902bab27f185a2">
+  <!ENTITY bind-md5sum          "55da4659c614aa80e3fb57c900bb70e1">
   <!ENTITY bind-size            "4.8 MB">
-  <!ENTITY bind-utils-buildsize "136 MB">
+  <!ENTITY bind-utils-buildsize "107 MB">
   <!ENTITY bind-utils-time      "0.6 SBU">
 ]>
 
diff --git a/packages.ent b/packages.ent
index f4f5fbeaee..bf8986ba6f 100644
--- a/packages.ent
+++ b/packages.ent
@@ -35,7 +35,7 @@
 <!ENTITY shadow-version               "4.9">
 <!ENTITY ssh-askpass-version          "&openssh-version;">
 <!ENTITY stunnel-version              "5.60">
-<!ENTITY sudo-version                 "1.9.8">
+<!ENTITY sudo-version                 "1.9.8p1">
 <!ENTITY tripwire-version             "2.4.3.7">
 <!ENTITY volume_key-version           "0.3.12">
 
@@ -276,7 +276,7 @@ to avoid building libxml2 twice, which is slow with all deps -->
 
 <!-- Chapter 12 -->
 <!ENTITY accountsservice-version      "0.6.55">
-<!ENTITY acpid-version                "2.0.32">
+<!ENTITY acpid-version                "2.0.33">
 <!ENTITY at-version                   "3.2.2">
 <!ENTITY autofs-version               "5.1.7">
 <!ENTITY bluez-version                "5.61">
@@ -296,7 +296,7 @@ to avoid building libxml2 twice, which is slow with all deps -->
 <!ENTITY logrotate-version            "3.18.1">
 <!ENTITY lsb-tools-version            "0.9">
 <!ENTITY mc-version                   "4.8.27">
-<!ENTITY ModemManager-version         "1.18.0">
+<!ENTITY ModemManager-version         "1.18.2">
 <!ENTITY notification-daemon-version  "3.20.0">
 <!ENTITY obex-data-server-version     "0.4.6">
 <!ENTITY p7zip-version                "17.04">
@@ -608,7 +608,7 @@ to avoid building libxml2 twice, which is slow with all deps -->
 <!-- Chapter 16 -->
 <!ENTITY avahi-version                "0.8">
 <!ENTITY bind-minor-version           "9.16">
-<!ENTITY bind-version                 "&bind-minor-version;.20">
+<!ENTITY bind-version                 "&bind-minor-version;.21">
 <!ENTITY mod_dnssd-version            "0.6">
 <!ENTITY NetworkManager-minor         "1.32">
 <!ENTITY NetworkManager-version       "&NetworkManager-minor;.10">
@@ -1015,7 +1015,7 @@ to avoid building libxml2 twice, which is slow with all deps -->
 <!ENTITY mlt-version                  "7.0.1">
 <!ENTITY opal-version                 "3.10.10">
 <!ENTITY opus-version                 "1.3.1">
-<!ENTITY pipewire-version             "0.3.35">
+<!ENTITY pipewire-version             "0.3.36">
 <!ENTITY pulseaudio-major-version     "15.0">
 <!ENTITY pulseaudio-version           "&pulseaudio-major-version;">
 <!ENTITY sdl-version                  "1.2.15">
diff --git a/postlfs/security/sudo.xml b/postlfs/security/sudo.xml
index adbde7634b..f2b43fd4aa 100644
--- a/postlfs/security/sudo.xml
+++ b/postlfs/security/sudo.xml
@@ -6,7 +6,7 @@
 
   <!ENTITY sudo-download-http "https://www.sudo.ws/dist/sudo-&sudo-version;.tar.gz">
   <!ENTITY sudo-download-ftp  "ftp://ftp.sudo.ws/pub/sudo/sudo-&sudo-version;.tar.gz">
-  <!ENTITY sudo-md5sum        "0a38acd342112b86e8163a26818bdbbd">
+  <!ENTITY sudo-md5sum        "ae9c8b32268f27d05bcdcb8f0c04d461">
   <!ENTITY sudo-size          "4.1 MB">
   <!ENTITY sudo-buildsize     "45 MB (add 14 MB for tests)">
   <!ENTITY sudo-time          "0.5 SBU (add 0.1 SBU for tests)">
diff --git a/server/major/bind.xml b/server/major/bind.xml
index a66b14ef55..8adffc1789 100644
--- a/server/major/bind.xml
+++ b/server/major/bind.xml
@@ -6,7 +6,7 @@
 
   <!ENTITY bind-download-http " ">
   <!ENTITY bind-download-ftp  "ftp://ftp.isc.org/isc/bind9/&bind-version;/bind-&bind-version;.tar.xz">
-  <!ENTITY bind-md5sum        "8025b8f8463b3b9d9c902bab27f185a2">
+  <!ENTITY bind-md5sum        "55da4659c614aa80e3fb57c900bb70e1">
   <!ENTITY bind-size          "4.8 MB">
   <!ENTITY bind-buildsize     "117 MB (20 MB installed)">
   <!ENTITY bind-time          "0.8 SBU (with parallelism=4; add 30+ minutes, somewhat processor independent, to run the complete test suite)">