package upgrade using dpkg provider

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I have a custom .deb package created for our environment, which I install using the package resource and dpkg provider by first putting the package file locally on that mchine. Now whenever, I have new features or fixes the custom package, I update it's version number in the control file and rebuild the deb package.

The package resource looks like this.

  package { "my_package":
      name      =>  'my_package',
      ensure    =>  installed,
      provider  =>  dpkg,
      source    =>  "${package_location}",
  }

But the package resource simply ignores that it is an updated package and doesn't install it.

How can I make the puppet package resource realize that it ... (more)