diff --git a/nbdkit.spec b/nbdkit.spec
index f6c3cb9..2b93050 100644
--- a/nbdkit.spec
+++ b/nbdkit.spec
@@ -49,10 +49,10 @@ ExclusiveArch:  x86_64
 %global patches_touch_autotools %{nil}
 
 # The source directory.
-%global source_directory 1.30-stable
+%global source_directory 1.31-development
 
 Name:           nbdkit
-Version:        1.30.3
+Version:        1.31.1
 Release:        1%{?dist}
 Summary:        NBD server
 
@@ -1171,6 +1171,9 @@ export LIBGUESTFS_TRACE=1
 
 
 %changelog
+* Wed Apr 20 2022 Richard W.M. Jones <rjones@redhat.com> - 1.31.1-1
+- New upstream development version 1.31.1
+
 * Sat Apr 16 2022 Richard W.M. Jones <rjones@redhat.com> - 1.30.3-1
 - New stable version 1.30.3
 - Remove dependency on ssh-keygen which was never really used.
diff --git a/sources b/sources
index 8fb7c98..a19abc1 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (nbdkit-1.30.3.tar.gz) = 536dcae12370896c90ba662ef00296c30e749bbc20470b75c9632274b2d338637f2be175075040e0250bb755e09dfcc4d30cbc03b154e7f625bb8f1d566858ef
-SHA512 (nbdkit-1.30.3.tar.gz.sig) = 42472296cd5ddabaa0a6ba963e591160ee91c7988e060a0136f25b5230c16e1f205220fc5128a8ed77bc883a48250905886c2bb13b485ed2791eb3d91252b46e
+SHA512 (nbdkit-1.31.1.tar.gz) = 3ff696d99cd64a7fa5416408d02a609c6e16fa8d1529a39089ef6d2fd84cfcf8d91bf38b7ff52e1da01d654df603065153ba0e7716abd1573ecab3d26f878501
+SHA512 (nbdkit-1.31.1.tar.gz.sig) = 474b3c6460b3fe6d3959f0a9c9d41c50b0dbd715c2453ae5ddaaa2dfd4d9823c39a50931f2dbf29d4925496eb38e30c218870e014fded39ede647a61540f2458