diff --git a/chapter01/changelog.xml b/chapter01/changelog.xml
index 78ce09db6..3ab673239 100644
--- a/chapter01/changelog.xml
+++ b/chapter01/changelog.xml
@@ -38,6 +38,7 @@ first a summary, then a detailed log.</para>
 <listitem><para>Libtool 1.5.14</para></listitem>
 <listitem><para>Linux 2.6.11.6</para></listitem>
 <listitem><para>Linux-libc-headers 2.6.11.2</para></listitem>
+<listitem><para>M4 1.4.3</para></listitem>
 <listitem><para>Man 1.5p</para></listitem>
 <listitem><para>Man-pages 2.01</para></listitem>
 <listitem><para>Module-init-tools 3.1</para></listitem>
@@ -81,6 +82,8 @@ first a summary, then a detailed log.</para>
 </itemizedlist>
 </listitem>
 
+<listitem><para>March 31, 2005 [matt]: Upgraded to m4-1.4.3</para></listitem>
+
 <listitem><para>March 30, 2005 [matt]: Upgraded to iproute2-2.6.11-050330</para></listitem>
 
 <listitem><para>March 30, 2005 [jhuntwork]: Removed syslog-ng-1.6.6, libol-0.3.15. Reinstated sysklogd-1.4.1.
diff --git a/chapter03/packages.xml b/chapter03/packages.xml
index 5bd6a5758..12220a478 100644
--- a/chapter03/packages.xml
+++ b/chapter03/packages.xml
@@ -249,7 +249,7 @@ url="ftp://ftp.linuxfromscratch.org/pub/lfs/"/>.</para></note>
 </varlistentry>
 
 <varlistentry>
-<term>M4 (&m4-version;) - 337 KB:</term>
+<term>M4 (&m4-version;) - 298 KB:</term>
 <listitem>
 <para><ulink url="&gnu;m4/"/></para>
 </listitem>
diff --git a/chapter06/m4.xml b/chapter06/m4.xml
index 10152b96f..6ea4b2bbb 100644
--- a/chapter06/m4.xml
+++ b/chapter06/m4.xml
@@ -15,7 +15,7 @@
 <segmentedlist>
 <segtitle>&buildtime;</segtitle>
 <segtitle>&diskspace;</segtitle>
-<seglistitem><seg>0.1 SBU</seg><seg>3.0 MB</seg></seglistitem>
+<seglistitem><seg>0.1 SBU</seg><seg>1.9 MB</seg></seglistitem>
 </segmentedlist>
 
 <segmentedlist>
diff --git a/general.ent b/general.ent
index 6bb6f93aa..51de924a0 100644
--- a/general.ent
+++ b/general.ent
@@ -54,7 +54,7 @@
 <!ENTITY linux-version "2.6.11.6">
 <!ENTITY linux-dl-version "2.6">
 <!ENTITY linux-libc-headers-version "2.6.11.2">
-<!ENTITY m4-version "1.4.2">
+<!ENTITY m4-version "1.4.3">
 <!ENTITY make-version "3.80">
 <!ENTITY man-version "1.5p">
 <!ENTITY man-pages-version "2.01">