diff --git a/chapter01/changelog.xml b/chapter01/changelog.xml
index 8c3d51f6b..8d365aa8c 100644
--- a/chapter01/changelog.xml
+++ b/chapter01/changelog.xml
@@ -39,6 +39,9 @@
     <listitem>
       <para>2006-10-28</para>
       <itemizedlist>
+        <listitem>
+          <para>[matthew] - Upgrade to Groff-1.18.1.4.</para>
+        </listitem>
         <listitem>
           <para>[matthew] - Upgrade to Gettext-0.16.</para>
         </listitem>
diff --git a/chapter01/whatsnew.xml b/chapter01/whatsnew.xml
index 697714916..a45a69e57 100644
--- a/chapter01/whatsnew.xml
+++ b/chapter01/whatsnew.xml
@@ -82,9 +82,9 @@
     <!--<listitem>
       <para>Grep &grep-version;</para>
     </listitem>-->
-    <!--<listitem>
+    <listitem>
       <para>Groff &groff-version;</para>
-    </listitem>-->
+    </listitem>
     <!--<listitem>
       <para>GRUB &grub-version;</para>
     </listitem>-->
diff --git a/chapter06/groff.xml b/chapter06/groff.xml
index 9f957d50e..3887ca4c0 100644
--- a/chapter06/groff.xml
+++ b/chapter06/groff.xml
@@ -53,11 +53,6 @@
 <screen><userinput>sed -i -e 's/2010/002D/' -e 's/2212/002D/' \
     -e 's/2018/0060/' -e 's/2019/0027/' font/devutf8/R.proto</userinput></screen>
 
-    <para>Fix a bug that prevents Groff from compiling with GCC-&gcc-version;:
-    </para>
-
-<screen><userinput>sed -i -e '264 s/char_block:://' src/devices/grohtml/post-html.cc</userinput></screen>
-
     <para>Groff expects the environment variable <envar>PAGE</envar> to
     contain the default paper size. For users in the United States,
     <parameter>PAGE=letter</parameter> is appropriate. Elsewhere,
diff --git a/packages.ent b/packages.ent
index 6021b3c03..74dd5d549 100644
--- a/packages.ent
+++ b/packages.ent
@@ -215,10 +215,10 @@
 <!ENTITY grep-ch6-du "4.8 MB">
 <!ENTITY grep-ch6-sbu "0.1 SBU">
 
-<!ENTITY groff-version "1.18.1.1">
-<!ENTITY groff-size "2,208 KB">
+<!ENTITY groff-version "1.18.1.4">
+<!ENTITY groff-size "2,265 KB">
 <!ENTITY groff-url "&gnu;groff/groff-&groff-version;.tar.gz">
-<!ENTITY groff-md5 "511dbd64b67548c99805f1521f82cc5e">
+<!ENTITY groff-md5 "ceecb81533936d251ed015f40e5f7287">
 <!ENTITY groff-home "&gnu-software;groff/">
 <!ENTITY groff-ch6-du "39.2 MB">
 <!ENTITY groff-ch6-sbu "0.4 SBU">
diff --git a/patches.ent b/patches.ent
index 8862804c3..d5392142c 100644
--- a/patches.ent
+++ b/patches.ent
@@ -54,8 +54,8 @@
 
 
 <!ENTITY groff-debian-patch "groff-&groff-version;-debian_fixes-1.patch">
-<!ENTITY groff-debian-patch-md5 "a47c281afdda457ba4033498f973400d">
-<!ENTITY groff-debian-patch-size "360 KB">
+<!ENTITY groff-debian-patch-md5 "05607e7fcfd6e5091f020bf44ddca10b">
+<!ENTITY groff-debian-patch-size "379 KB">
 
 <!ENTITY grub-geometry-patch "grub-&grub-version;-disk_geometry-1.patch">
 <!ENTITY grub-geometry-patch-md5 "bf1594e82940e25d089feca74c6f1879">