diff --git a/chapter01/changelog.xml b/chapter01/changelog.xml
index 5fe0564fc..f6c1b30ac 100644
--- a/chapter01/changelog.xml
+++ b/chapter01/changelog.xml
@@ -42,6 +42,10 @@
     <listitem>
       <para>2022-01-20</para>
       <itemizedlist>
+        <listitem>
+          <para>[bdubbs] - Update to expat-2.4.3 (security fixes). Fixes
+          <ulink url="&lfs-ticket-root;4984">#4984</ulink>.</para>
+        </listitem>
         <listitem>
           <para>[pierre] - Update to meson-0.61.1. Fixes
           <ulink url="&lfs-ticket-root;4985">#4985</ulink>.</para>
diff --git a/packages.ent b/packages.ent
index 8cb11f3fc..3ddca0fb0 100644
--- a/packages.ent
+++ b/packages.ent
@@ -163,10 +163,10 @@
 <!ENTITY eudev-fin-du "80 MB">
 <!ENTITY eudev-fin-sbu "0.2 SBU">
 
-<!ENTITY expat-version "2.4.2">
-<!ENTITY expat-size "440 KB">
+<!ENTITY expat-version "2.4.3">
+<!ENTITY expat-size "444 KB">
 <!ENTITY expat-url "&sourceforge;expat/expat-&expat-version;.tar.xz">
-<!ENTITY expat-md5 "b49e50792ddb35165bab41413238f66e">
+<!ENTITY expat-md5 "b1137f030590b3f0c41c69c6cd68fa90">
 <!ENTITY expat-home "https://libexpat.github.io/">
 <!ENTITY expat-fin-du "13 MB">
 <!ENTITY expat-fin-sbu "0.1 SBU">