diff --git a/nbdkit.spec b/nbdkit.spec
index a7060ba..6f43154 100644
--- a/nbdkit.spec
+++ b/nbdkit.spec
@@ -45,7 +45,7 @@ ExclusiveArch:  x86_64
 %global source_directory 1.23-development
 
 Name:           nbdkit
-Version:        1.23.5
+Version:        1.23.6
 Release:        1%{?dist}
 Summary:        NBD server
 
@@ -1200,6 +1200,9 @@ export LIBGUESTFS_TRACE=1
 
 
 %changelog
+* Tue Sep 22 2020 Richard W.M. Jones <rjones@redhat.com> - 1.23.6-1
+- New upstream development version 1.23.6.
+
 * Wed Sep 16 2020 Richard W.M. Jones <rjones@redhat.com> - 1.23.5-1
 - New upstream development version 1.23.5.
 
diff --git a/sources b/sources
index 9c216cb..13854a0 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (nbdkit-1.23.5.tar.gz) = a3bdb04b8f8b79a7bf27b08a59eb4e64f05dbc8019601057d8fbe9f8c61587191e65c85f3b1f78591b4ea2d353f36998b6040571f71142cb06657ea8edd9ee39
-SHA512 (nbdkit-1.23.5.tar.gz.sig) = 006100153675bd2148c94a421d9cbd2ed4fcfe828531ba0a7da8912a6fdcaecf2b00a6a2712470b834b9aa05b8743db3aac905dd4d30dbfa68536b8b3bfce04a
+SHA512 (nbdkit-1.23.6.tar.gz) = bb1af217dfb155ae46f5ea4aaa44caccc58bf75559d53b5d202a4121867573e5811a63177cd98be0009fa7cd68958112f948de7b5fb4c11db31d5cad82d2b87b
+SHA512 (nbdkit-1.23.6.tar.gz.sig) = f1230ff7532cb10b600fafefdeededc0de34fb5d5dafd53fbcefb47e380a48d5b5b56fe73ea619e726c404962b2b7689a322911fd19de9b5049ed4c923b8aafc