Question: After I create a new swift package with dependencies I call `swift package generate-xcodeproj`. If my dependencies have a new version I call `swift package update`. The new version of my dependency gets downloaded and built but Xcode now has a bad reference to the old version of the dependency. I can call `swift package generate-xcodeproj` again but this will remove any custom targets I have setup.

How do I update my swift dependencies and my Xcode project without deleting my custom targets?

Answer: 
I just stumbled upon this question and found that the solution to "How to update swift dependencies in Xcode" has probably changed now that Swift Packages have been around for a few years.

For me, the solutions was to simply go to `File` -> `Swift Packages` -> `Update to Latest Package Versions`.

[![enter image description here](https://i.stack.imgur.com/HomP2.png)](https://i.stack.imgur.com/HomP2.png)
Many of the problems with packages not updating are because the swift package version rules limit the automatic package updates to the current major version only, i.e v3.3.1 of a package will update to v3.4.0, but will not update automatically to v4.0.1. Therefore using the update options in Xcode does not necessarily get the latest major version of a package.

To resolve, Open the project from the project panel, select the project (not the targets), then select the "Swift Packages" tab. Double click on the package you want to update and change the minimum version to the next major version.

[![enter image description here](https://i.stack.imgur.com/l6yBj.png)](https://i.stack.imgur.com/l6yBj.png)