diff -Nru ocaml-dune-2.9.1/debian/changelog ocaml-dune-2.9.1/debian/changelog
--- ocaml-dune-2.9.1/debian/changelog	2021-11-30 14:14:22.000000000 +0000
+++ ocaml-dune-2.9.1/debian/changelog	2022-01-24 16:19:45.000000000 +0000
@@ -1,3 +1,9 @@
+ocaml-dune (2.9.1-1build1) jammy; urgency=medium
+
+  * No-change rebuild for ocaml abi changes.
+
+ -- Matthias Klose <doko@ubuntu.com>  Mon, 24 Jan 2022 17:19:45 +0100
+
 ocaml-dune (2.9.1-1) unstable; urgency=medium
 
   * Team upload.