diff --git a/debian/apertis/copyright b/debian/apertis/copyright
new file mode 100644
index 0000000000000000000000000000000000000000..ff087c17b052815b00bfe348cd41e095b4fb4f2c
--- /dev/null
+++ b/debian/apertis/copyright
@@ -0,0 +1,14 @@
+Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+
+Files: *
+Copyright: 2013, Lukas Mai
+License: UNKNOWN
+
+Files: *
+Copyright: 2013 Lukas Mai
+License: BSD-3-clause
+
+Files: debian/*
+Copyright: 2014 Clint Adams
+License: ISC
+
diff --git a/debian/changelog b/debian/changelog
index 14da5009c47ac5caa7c43106cecb852d660b6090..e8859c238799d783b15bd644b24cd8e96462565c 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,16 @@
+haskell-data-default-instances-containers (0.0.1-12+apertis0) apertis; urgency=medium
+
+  * Sync from debian/bookworm.
+
+ -- Apertis CI <devel@lists.apertis.org>  Thu, 06 Apr 2023 10:52:17 +0000
+
+haskell-data-default-instances-containers (0.0.1-12) unstable; urgency=medium
+
+  * Declare compliance with Debian policy 4.6.1
+  * Sourceful upload for GHC 9.0.2
+
+ -- Ilias Tsitsimpis <iliastsi@debian.org>  Wed, 29 Jun 2022 20:45:31 +0300
+
 haskell-data-default-instances-containers (0.0.1-11apertis1) apertis; urgency=medium
 
   * Move package to development
diff --git a/debian/control b/debian/control
index 06e5ead51cb4454d51126a49a58de3addfce87f4..2231ddf3844c4f61d63a8dd9b63e987ef3d7658d 100644
--- a/debian/control
+++ b/debian/control
@@ -13,7 +13,7 @@ Build-Depends:
  libghc-data-default-class-dev,
  libghc-data-default-class-prof,
 Build-Depends-Indep: ghc-doc, libghc-data-default-class-doc
-Standards-Version: 4.5.0
+Standards-Version: 4.6.1
 Homepage: https://hackage.haskell.org/package/data-default-instances-containers
 Vcs-Browser: https://salsa.debian.org/haskell-team/DHG_packages/tree/master/p/haskell-data-default-instances-containers
 Vcs-Git: https://salsa.debian.org/haskell-team/DHG_packages.git [p/haskell-data-default-instances-containers]