cellar in a bottle block is deprecated

[artk42]

$ brew upgrade kr
Warning: Calling cellar in a bottle block is deprecated! Use brew style --fix on the formula to update the style or use sha256 with a cellar: argument instead.
Please report this issue to the kryptco/tap tap (not Homebrew/brew or Homebrew/core), or even better, submit a PR to fix it:
/usr/local/Homebrew/Library/Taps/kryptco/homebrew-tap/kr.rb:12

Warning: Calling sha256 "digest" => :tag in a bottle block is deprecated! Use brew style --fix on the formula to update the style or use sha256 tag: "digest" instead.
Please report this issue to the kryptco/tap tap (not Homebrew/brew or Homebrew/core), or even better, submit a PR to fix it:
/usr/local/Homebrew/Library/Taps/kryptco/homebrew-tap/kr.rb:13

Warning: Calling sha256 "digest" => :tag in a bottle block is deprecated! Use brew style --fix on the formula to update the style or use sha256 tag: "digest" instead.
Please report this issue to the kryptco/tap tap (not Homebrew/brew or Homebrew/core), or even better, submit a PR to fix it:
/usr/local/Homebrew/Library/Taps/kryptco/homebrew-tap/kr.rb:14

Warning: Calling sha256 "digest" => :tag in a bottle block is deprecated! Use brew style --fix on the formula to update the style or use sha256 tag: "digest" instead.
Please report this issue to the kryptco/tap tap (not Homebrew/brew or Homebrew/core), or even better, submit a PR to fix it:
/usr/local/Homebrew/Library/Taps/kryptco/homebrew-tap/kr.rb:15

Warning: Calling sha256 "digest" => :tag in a bottle block is deprecated! Use brew style --fix on the formula to update the style or use sha256 tag: "digest" instead.
Please report this issue to the kryptco/tap tap (not Homebrew/brew or Homebrew/core), or even better, submit a PR to fix it:
/usr/local/Homebrew/Library/Taps/kryptco/homebrew-tap/kr.rb:16

Warning: Calling sha256 "digest" => :tag in a bottle block is deprecated! Use brew style --fix on the formula to update the style or use sha256 tag: "digest" instead.
Please report this issue to the kryptco/tap tap (not Homebrew/brew or Homebrew/core), or even better, submit a PR to fix it:
/usr/local/Homebrew/Library/Taps/kryptco/homebrew-tap/kr.rb:17

Warning: Calling sha256 "digest" => :tag in a bottle block is deprecated! Use brew style --fix on the formula to update the style or use sha256 tag: "digest" instead.
Please report this issue to the kryptco/tap tap (not Homebrew/brew or Homebrew/core), or even better, submit a PR to fix it:
/usr/local/Homebrew/Library/Taps/kryptco/homebrew-tap/kr.rb:18

Warning: kryptco/tap/kr 2.4.13 already installed

[yous]

#11 may fix this issue.