panoply sha error: What's the right way to "fix" a cask?

[mathomp4]

Output of brew config

HOMEBREW_VERSION: 6.0.15-108-gc8c7573
ORIGIN: https://github.com/Homebrew/brew
HEAD: c8c75738655a742e4d9fa3fc85acc3818214212e
Last commit: 29 minutes ago
Branch: main
Core tap HEAD: f56b734c6bb3f60c592a9fe37a9fe62bf344d824
Core tap last commit: 8 minutes ago
Core tap JSON: 05 Aug 16:53 UTC
Core cask tap JSON: 05 Aug 16:53 UTC
HOMEBREW_PREFIX: /Users/mathomp4/.homebrew/brew
HOMEBREW_REPOSITORY: /Users/mathomp4/.homebrew/brew
HOMEBREW_CELLAR: /Users/mathomp4/.homebrew/brew/Cellar
HOMEBREW_CASK_OPTS: ["--appdir=/Users/mathomp4/Applications"]
HOMEBREW_GITHUB_API_TOKEN: set
HOMEBREW_MAKE_JOBS: 6
HOMEBREW_NO_ENV_HINTS: set
Homebrew Ruby: 4.0.6 => /Users/mathomp4/.homebrew/brew/Library/Homebrew/vendor/portable-ruby/4.0.6/bin/ruby
CPU: dodeca-core 64-bit arm_blizzard_avalanche
Clang: 21.0.0 build 2100
Git: 2.55.0 => /Users/mathomp4/.homebrew/brew/bin/git
Curl: 8.7.1 => /usr/bin/curl
macOS: 26.5.2-arm64
CLT: 26.6.0.0.1781586589
Xcode: 26.6
Metal Toolchain: N/A
Rosetta 2: false

Output of brew doctor

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Description of issue

When I try and upgrade Panoply I get:

❯ brew upgrade panoply
==> Would upgrade 1 outdated package
panoply 5.10.0 -> 5.10.1
==> Fetching downloads for: panoply
✘ Cask panoply (5.10.1)                                                                                                                                           Verifying    59.2MB/ 59.2MB
Error: Cask reports different checksum:     dfe056a0f3a8e85d5ab743e8063e3001685278cd9cff2970907250791d9d4d3b
       SHA-256 checksum of downloaded file: 286aeed3bdf797f0c49da92493c48cf65d19929993d61962435d23fe204b048e
==> Upgrading panoply
  5.10.0 -> 5.10.1
==> Caveats
panoply requires Java 11+. You can install the latest version with:
  brew install --cask temurin

==> Purging files for version 5.10.1 of Cask panoply
Error: panoply: SHA-256 mismatch
Expected: dfe056a0f3a8e85d5ab743e8063e3001685278cd9cff2970907250791d9d4d3b
  Actual: 286aeed3bdf797f0c49da92493c48cf65d19929993d61962435d23fe204b048e
    File: /Users/mathomp4/Library/Caches/Homebrew/downloads/76ae2652dae1909df25f02ae211038f866bd363356cb499842d011f802fff030--PanoplyMacOS-arm64-5.10.1.dmg
To retry an incomplete download, remove the file above.

I'm not sure how one "fixes" this...

Relevant casks

panoply

[p-linnane]

https://docs.brew.sh/How-To-Open-a-Homebrew-Pull-Request

[daeho-ro]

You could open a PR like this later.

• panoply: update checksum homebrew-cask#279949

[mathomp4]

Ahh. I see. I never updated a Cask before. So you download them, sha256sum them and then update the shas. Thanks!