diff --git a/nbdkit.spec b/nbdkit.spec
index 8cec510..7f669e1 100644
--- a/nbdkit.spec
+++ b/nbdkit.spec
@@ -10,7 +10,7 @@
 %endif
 
 Name:           nbdkit
-Version:        1.1.22
+Version:        1.1.23
 Release:        1%{?dist}
 Summary:        NBD server
 
@@ -428,6 +428,7 @@ popd
 %doc README
 %license LICENSE
 %{_libdir}/%{name}/plugins/nbdkit-example*-plugin.so
+%{_libdir}/%{name}/plugins/nbdkit-example4-plugin
 %{_mandir}/man1/nbdkit-example*-plugin.1*
 
 
@@ -517,6 +518,7 @@ popd
 %license LICENSE
 # Include the source of the example plugins in the documentation.
 %doc plugins/example*/*.c
+%doc plugins/example4/nbdkit-example4-plugin
 %doc plugins/perl/example.pl
 %doc plugins/python/example.py
 %doc plugins/ruby/example.rb
@@ -525,6 +527,10 @@ popd
 
 
 %changelog
+* Tue Dec 05 2017 Richard W.M. Jones <rjones@redhat.com> - 1.1.23-1
+- New upstream version 1.1.23.
+- Add example4 plugin.
+
 * Sun Dec 03 2017 Richard W.M. Jones <rjones@redhat.com> - 1.1.22-1
 - New upstream version 1.1.22.
 - Enable tests on Fedora.
diff --git a/sources b/sources
index bcdb101..27ed862 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (nbdkit-1.1.22.tar.gz) = dfc774b54b7346a1ed0e878a198f2a8c8c831a245f8f82e9fdeb5ad69986cb0aaa8e8d39eb1750b45d41eddf4764980a54ca9603266dce0930092f19008bb612
+SHA512 (nbdkit-1.1.23.tar.gz) = 30675c4634fde8cad0dc08289227cd19e5dfb0056b633a321d77577b256de1b9bb731939141b1f949ad5b5203158be2b876e135dd85d995464bb41f00499fae4