https://github.com/Homebrew/homebrew/issues/42553#issuecomment-128453641
@@ -5,7 +5,7 @@ cache:
- vendor/bundle
before_install:
- curl 'https://developer.apple.com/certificationauthority/AppleWWDRCA.cer' -o certificates/AppleWWDRCA.cer
-- brew update
+- brew update; brew update
- brew install carthage
install:
- bundle install --path=vendor/bundle --binstubs=vendor/bin