diff --git a/chapter01/changelog.xml b/chapter01/changelog.xml
index b3d50a05a..62892b0b1 100644
--- a/chapter01/changelog.xml
+++ b/chapter01/changelog.xml
@@ -40,6 +40,10 @@
     <listitem>
       <para>2009-07-28</para>
       <itemizedlist>
+        <listitem>
+          <para>[matthew] - Upgrade to Autoconf-2.64. Fixes
+          <ulink url="&lfs-ticket-root;2467">#2467</ulink>.</para>
+        </listitem>
         <listitem>
           <para>[matthew] - Upgrade to Shadow-4.1.4.2. Fixes
           <ulink url="&lfs-ticket-root;2465">#2465</ulink>.</para>
diff --git a/chapter01/whatsnew.xml b/chapter01/whatsnew.xml
index 65c13a802..4c3811209 100644
--- a/chapter01/whatsnew.xml
+++ b/chapter01/whatsnew.xml
@@ -23,9 +23,9 @@
     <title>Upgraded to:</title>
 
 
-    <!--<listitem>
+    <listitem>
       <para>Autoconf &autoconf-version;</para>
-    </listitem>-->
+    </listitem>
     <listitem>
       <para>Automake &automake-version;</para>
     </listitem>
diff --git a/packages.ent b/packages.ent
index 521b24356..bcb442c5d 100644
--- a/packages.ent
+++ b/packages.ent
@@ -7,10 +7,10 @@
      Allowed deviation in disk usage : 2% -->
 
 
-<!ENTITY autoconf-version "2.63">
-<!ENTITY autoconf-size "1,167 KB">
+<!ENTITY autoconf-version "2.64">
+<!ENTITY autoconf-size "1,283 KB">
 <!ENTITY autoconf-url "&gnu;autoconf/autoconf-&autoconf-version;.tar.bz2">
-<!ENTITY autoconf-md5 "7565809ed801bb5726da0631ceab3699">
+<!ENTITY autoconf-md5 "ef400d672005e0be21e0d20648169074">
 <!ENTITY autoconf-home "&gnu-software;autoconf/">
 <!ENTITY autoconf-ch6-du "12.4 MB testsuite included">
 <!ENTITY autoconf-ch6-sbu "4.8 SBU testsuite included">