ラズベリーパイ4のDebianブルズアイにzfsutilsをインストールする

Debian Bullseyeにアップグレードされた64ビットPi OSにzfsutilsをインストール中にエラーが発生しました。

sudo apt install zfsutils-linux

The following packages have unmet dependencies:  zfsutils-linux : Depends: libnvpair3linux (= 2.0.3-9~bpo10+1) but 2.0.3-9 is to be installed
                  Depends: libuutil3linux (= 2.0.3-9~bpo10+1) but 2.0.3-9 is to be installed
                  Depends: libzfs4linux (= 2.0.3-9~bpo10+1) but 2.0.3-9 is to be installed
                  Depends: libzpool4linux (= 2.0.3-9~bpo10+1) but 2.0.3-9 is to be installed
                  Recommends: zfs-zed but it is not going to be installed E: Unable to correct problems, you have held broken packages.

apt policy zfsutils-linux

zfsutils-linux:
  Installed: (none)
  Candidate: 2.0.3-9~bpo10+1
  Version table:
     2.0.3-9 500
        500 http://deb.debian.org/debian bullseye/contrib arm64 Packages
     2.0.3-9~bpo10+1 990
        100 http://deb.debian.org/debian buster-backports/contrib arm64 Packages
     2.0.2-1~bpo10+1 500
        500 http://archive.raspberrypi.org/debian buster/main arm64 Packages
     0.7.12-2+deb10u2 500
        500 http://deb.debian.org/debian buster/contrib arm64 Packages

どんなアイデアがありますか？