When I try to install the Xcode Command Line Tools I get the error message: "The package “DeveloperToolsCLI.pkg” is untrusted." I can't seem to find the answer to this problem anywhere, how do you fix this?


3 Answers 3


Probably the certificate is outdated. To circumvent this the following procedure should work:

  • Open "System Preferences"
  • Hit "Security & Privacy"
  • Hit the tab "General"
  • Click the lock and enter your admin password
  • at "Allow applications from anywhere" mark the radio button "Anywhere"
  • then click the button "Allow from anywhere"


or like indicated in the screenshot above control-click individual apps/installer-apps and select "Open". This probably doesn't work for the DeveloperToolsCLI.pkg but for other apps.

  • I had already done exactly this a while back and somehow OS X set it back to "Mac App Store" without my consent. Also, this didn't work. Downloading and installing from link below in @Damian Nikodem's answer worked. Mar 11, 2015 at 7:12

Funnily Enough I had the exact same issue as you did about 10 minutes ago and stumbled across here via google.

I still had issues after relaxing the code signing checks on OSX also.

I logged into https://developer.apple.com/downloads and downloaded the CLI package from there (then installed them directly. )


I fixed this by changing the date, klanomath's answer didn't work for me.

Seems like the problem is trusting the certs, so being Sept 2015, I started to download the tools and only after the download had started changed the date to Sept 2013 in the Date & Time dialog of the System Preferences.

You cannot change the date before the download starts, otherwise it will say the source is not trusted.

  • Bahahaha this is genius. Also, it's funny how they autoupdate tools, but not certificates. Defeats the whole purpose of the autoupdating
    – Jonathan
    Sep 30, 2015 at 3:21

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