diff --git a/libguestfs.spec b/libguestfs.spec
index bbbfa91..89ceb7a 100644
--- a/libguestfs.spec
+++ b/libguestfs.spec
@@ -49,8 +49,8 @@ ExcludeArch: %{ix86}
 Summary:       Access and modify virtual machine disk images
 Name:          libguestfs
 Epoch:         1
-Version:       1.51.5
-Release:       2%{?dist}
+Version:       1.51.6
+Release:       1%{?dist}
 License:       LGPL-2.1-or-later
 
 # Build only for architectures that have a kernel
@@ -1093,6 +1093,9 @@ rm ocaml/html/.gitignore
 
 
 %changelog
+* Thu Jul 20 2023 Richard W.M. Jones <rjones@redhat.com> - 1:1.51.6-1
+- New upstream development branch 1.51.6
+
 * Thu Jul 20 2023 Fedora Release Engineering <releng@fedoraproject.org> - 1:1.51.5-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild
 
diff --git a/sources b/sources
index adf9f96..1fef8af 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (libguestfs-1.51.5.tar.gz) = 09f7b9462814ade03d0a792c6436d0c4037e8dd20b19e77faba811a1e23b6eb71e673a07f6d8bff306255d8a0314c0df76956279beb913ceee222a2dd679b392
-SHA512 (libguestfs-1.51.5.tar.gz.sig) = 38b87a7b0177909db2df53f154bef093601ce690149f8150f9047515bac4684fa4bd3199ecc4199bada04f5b6d540a51cf73f59c8d972a1c55b651d0167cb6e3
+SHA512 (libguestfs-1.51.6.tar.gz) = 6c9abc0feee9adb4ad36b7297876a355a2872ff516db0f11fa9d2e524504981bd3d5add0b28e398cd637cb55c55fcb1193f65c91d446452f00a6575414bc5667
+SHA512 (libguestfs-1.51.6.tar.gz.sig) = abe7307d42cee69f1ebb2847942142ecf70a186a6d3936c407a48bd7a8faec30330f63d7d11152d6f302bc6a6e51774be3d183758ce3dd0297d98884e7a80708