diff --git a/docs/reference/shell/shell-docs.sgml b/docs/reference/shell/shell-docs.sgml
index ebfd2213c..af2d543d5 100644
--- a/docs/reference/shell/shell-docs.sgml
+++ b/docs/reference/shell/shell-docs.sgml
@@ -1,6 +1,6 @@
 <?xml version="1.0"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
-               "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd"
+<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+               "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd"
 [
   <!ENTITY % local.common.attrib "xmlns:xi  CDATA  #FIXED 'http://www.w3.org/2003/XInclude'">
   <!ENTITY version SYSTEM "version.xml">
diff --git a/docs/reference/st/st-docs.sgml b/docs/reference/st/st-docs.sgml
index be4cec249..4e5fd9997 100644
--- a/docs/reference/st/st-docs.sgml
+++ b/docs/reference/st/st-docs.sgml
@@ -1,6 +1,6 @@
 <?xml version="1.0"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
-               "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd"
+<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+               "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd"
 [
   <!ENTITY % local.common.attrib "xmlns:xi  CDATA  #FIXED 'http://www.w3.org/2003/XInclude'">
   <!ENTITY version SYSTEM "version.xml">
diff --git a/man/gnome-shell.xml b/man/gnome-shell.xml
index b366e3fea..2b245f791 100644
--- a/man/gnome-shell.xml
+++ b/man/gnome-shell.xml
@@ -1,6 +1,6 @@
 <?xml version='1.0'?>
-<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-        "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+        "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 
 <refentry id="gnome-shell">