diff --git a/python-jsonref.changes b/python-jsonref.changes
index 40d2dc7..72a1096 100644
--- a/python-jsonref.changes
+++ b/python-jsonref.changes
@@ -19,6 +19,8 @@ Sat Jan 13 21:01:00 UTC 2024 - Dirk Müller <dmueller@suse.com>
   * `jsonloader` is now a plan function rather than an instance
     of a class. (This is a breaking change if you were
     subclassing `JsonLoader`)
+- add patch use-pdm-backend.patch: switch to more modern
+  pdm-backend
 
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 Thu Aug  1 08:07:48 UTC 2019 - Tomáš Chvátal <tchvatal@suse.com>