diff --git a/chapter01/changelog.xml b/chapter01/changelog.xml
index 271405108..948097b90 100644
--- a/chapter01/changelog.xml
+++ b/chapter01/changelog.xml
@@ -41,7 +41,7 @@
     -->
 
     <listitem>
-      <para>2022-02-15</para>
+      <para>2022-02-23</para>
       <itemizedlist>
         <listitem>
           <para>[bdubbs] - Update to expat-2.4.6 (security fix). Fixes