Hi there, that shouldn’t be a problem at all. After adding the dependency to the Package.swift, did you also add it as a dependency to the target?

dependencies: [
  .package(name: "XCGLogger", url: "https://url/of/another/package.git", from: "1.0.0"),
],
targets: [
  .target(name: "CalculatorLogger"
          dependencies: ["XCGLogger"]),
]