Many dependency and increase app size

[SajjadKharrazi]

dependencies: [
        .package(url: "https://github.com/Kitura/BlueRSA.git", from: "1.0.200"),
        .package(url: "https://github.com/Kitura/BlueCryptor.git", from: "2.0.1"),
        .package(url: "https://github.com/Kitura/BlueECC.git", from: "1.1.0"),
        .package(url: "https://github.com/Kitura/LoggerAPI.git", from: "1.7.0"),
        .package(url: "https://github.com/Kitura/KituraContracts.git", from: "1.2.200")
    ],

why it should have these many dependency???
i think does not require

also after uploaded my app to appstore, its size increased from 19.7 to 20.4 MB!!!!
do you think it is normal?