brew uninstall xmlsec1
cd "$(brew --prefix)/Library/Taps/homebrew/homebrew-core/Formula"\
git checkout 1d8e658f5ad489fe71f8d194c97811143aa46ec5
git reset --hard 1d8e658f5ad
git checkout -b libxmlsec1-downgrade-1.2.34
brew install libxmlsec1
brew pin libxmlsec1
git checkout master
brew update
brew info libxmlsec1