diff --git a/src/object/debian/changelog b/src/object/debian/changelog
index 1cae854..ad55870 100644
--- a/src/object/debian/changelog
+++ b/src/object/debian/changelog
@@ -1,3 +1,12 @@
+rust-object (0.12.0-4) UNRELEASED-FIXME-AUTOGENERATED-DEBCARGO; urgency=medium
+
+  * Team upload.
+  * Package object 0.12.0 from crates.io using debcargo 2.4.2
+  * Bump dependency on flate2 to ease buster->bullseye upgrades
+    (Closes: #990317).
+
+ -- Peter Michael Green <plugwash@debian.org>  Tue, 29 Jun 2021 17:26:42 +0000
+
 rust-object (0.12.0-3) unstable; urgency=medium
 
   * Team upload.
diff --git a/src/object/debian/copyright b/src/object/debian/copyright
index c699308..bb54092 100644
--- a/src/object/debian/copyright
+++ b/src/object/debian/copyright
@@ -14,7 +14,7 @@
 
 Files: debian/*
 Copyright:
- 2018-2020 Debian Rust Maintainers <pkg-rust-maintainers@alioth-lists.debian.net>
+ 2018-2021 Debian Rust Maintainers <pkg-rust-maintainers@alioth-lists.debian.net>
  2018 Ximin Luo <infinity0@debian.org>
  2020 Wolfgang Silbermayr <wolfgang@silbermayr.at>
 License: Apache-2.0 or MIT
diff --git a/src/object/debian/copyright.debcargo.hint b/src/object/debian/copyright.debcargo.hint
index ba49a20..2c7e389 100644
--- a/src/object/debian/copyright.debcargo.hint
+++ b/src/object/debian/copyright.debcargo.hint
@@ -25,9 +25,9 @@
 
 Files: debian/*
 Copyright:
- 2018-2020 Debian Rust Maintainers <pkg-rust-maintainers@alioth-lists.debian.net>
- 2018-2020 Ximin Luo <infinity0@debian.org>
- 2018-2020 Wolfgang Silbermayr <wolfgang@silbermayr.at>
+ 2018-2021 Debian Rust Maintainers <pkg-rust-maintainers@alioth-lists.debian.net>
+ 2018-2021 Ximin Luo <infinity0@debian.org>
+ 2018-2021 Wolfgang Silbermayr <wolfgang@silbermayr.at>
 License: Apache-2.0 or MIT
 
 License: Apache-2.0
diff --git a/src/object/debian/patches/bump-flate2.patch b/src/object/debian/patches/bump-flate2.patch
new file mode 100644
index 0000000..4b97b1d
--- /dev/null
+++ b/src/object/debian/patches/bump-flate2.patch
@@ -0,0 +1,15 @@
+Bump the flate2 dependency to help apt with updates from
+buster to bullseye (Closes: 990317)
+Index: object/Cargo.toml
+===================================================================
+--- object.orig/Cargo.toml
++++ object/Cargo.toml
+@@ -21,7 +21,7 @@ keywords = ["object", "loader", "elf", "
+ license = "Apache-2.0/MIT"
+ repository = "https://github.com/gimli-rs/object"
+ [dependencies.flate2]
+-version = "1"
++version = "1.0.13"
+ optional = true
+ 
+ [dependencies.goblin]
diff --git a/src/object/debian/patches/series b/src/object/debian/patches/series
index fa7eaac..7d3c54d 100644
--- a/src/object/debian/patches/series
+++ b/src/object/debian/patches/series
@@ -1 +1,2 @@
 relax-deps.diff
+bump-flate2.patch