diff --git a/.github/workflows/swift.yml b/.github/workflows/swift.yml
index 45999b9..e78fb75 100644
--- a/.github/workflows/swift.yml
+++ b/.github/workflows/swift.yml
@@ -11,10 +11,10 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest]
-        swift: ["5.9.0"]
+        swift: ["6.0.2"]
     steps:
-      - uses: actions/checkout@v2
-      - uses: swift-actions/setup-swift@v1
+      - uses: actions/checkout@v4
+      - uses: swift-actions/setup-swift@v2
         with:
           swift-version: ${{ matrix.swift }}
       - name: Resolve
diff --git a/Sources/MintCLI/Commands/BootstrapCommand.swift b/Sources/MintCLI/Commands/BootstrapCommand.swift
index 5b23eb3..78be8cb 100644
--- a/Sources/MintCLI/Commands/BootstrapCommand.swift
+++ b/Sources/MintCLI/Commands/BootstrapCommand.swift
@@ -1,13 +1,10 @@
-
-import Foundation
 import MintKit
-import PathKit
 import SwiftCLI
 
-class BootstrapCommand: MintfileCommand {
+final class BootstrapCommand: MintfileCommand {
 
     @Key("-o", "--overwrite", description: "Automatically overwrite a symlinked executable that is not installed by mint without asking. Either (y/n)")
-    var overwrite: Bool?
+    private var overwrite: Bool?
 
     init(mint: Mint) {
         super.init(mint: mint,
diff --git a/Sources/MintCLI/Commands/InstallCommand.swift b/Sources/MintCLI/Commands/InstallCommand.swift
index 463e6de..b6d2190 100644
--- a/Sources/MintCLI/Commands/InstallCommand.swift
+++ b/Sources/MintCLI/Commands/InstallCommand.swift
@@ -1,19 +1,19 @@
-import Foundation
 import MintKit
 import SwiftCLI
 
-class InstallCommand: PackageCommand {
+final class InstallCommand: PackageCommand {
 
-    @Param var executable: String?
+    @Param
+    private var executable: String?
 
     @Flag("-n", "--no-link", description: "Whether to prevent global linkage")
-    var noLink: Bool
+    private var noLink: Bool
 
     @Flag("-f", "--force", description: "Force a reinstall even if the package is already installed")
-    var force: Bool
+    private var force: Bool
 
     @Key("-o", "--overwrite", description: "Automatically overwrite a symlinked executable that is not installed by mint without asking. Either (y/n)")
-    var overwrite: Bool?
+    private var overwrite: Bool?
 
     init(mint: Mint) {
         super.init(mint: mint,
diff --git a/Sources/MintCLI/Commands/ListCommand.swift b/Sources/MintCLI/Commands/ListCommand.swift
index f4eb138..a3a5236 100644
--- a/Sources/MintCLI/Commands/ListCommand.swift
+++ b/Sources/MintCLI/Commands/ListCommand.swift
@@ -1,7 +1,6 @@
-import Foundation
 import MintKit
 
-class ListCommand: MintCommand {
+final class ListCommand: MintCommand {
 
     init(mint: Mint) {
         super.init(mint: mint,
diff --git a/Sources/MintCLI/Commands/MintCommand.swift b/Sources/MintCLI/Commands/MintCommand.swift
index cf71996..01cc495 100644
--- a/Sources/MintCLI/Commands/MintCommand.swift
+++ b/Sources/MintCLI/Commands/MintCommand.swift
@@ -1,6 +1,4 @@
-import Foundation
 import MintKit
-import PathKit
 import SwiftCLI
 
 class MintCommand: Command {
diff --git a/Sources/MintCLI/Commands/MintFileCommand.swift b/Sources/MintCLI/Commands/MintFileCommand.swift
index bd02183..e9d3d80 100644
--- a/Sources/MintCLI/Commands/MintFileCommand.swift
+++ b/Sources/MintCLI/Commands/MintFileCommand.swift
@@ -1,19 +1,16 @@
-
-import Foundation
-import MintKit
 import PathKit
 import SwiftCLI
 
 class MintfileCommand: MintCommand {
 
     @Flag("-v", "--verbose", description: "Show verbose output")
-    var verbose: Bool
+    private var verbose: Bool
 
     @Flag("-l", "--link", description: "Install the packages of the Mintfile globally")
     var link: Bool
 
     @Key("-m", "--mintfile", description: "Custom path to a Mintfile. Defaults to Mintfile")
-    var mintFile: String?
+    private var mintFile: String?
 
     override func execute() throws {
         try super.execute()
diff --git a/Sources/MintCLI/Commands/PackageCommand.swift b/Sources/MintCLI/Commands/PackageCommand.swift
index 77b22e1..67fdb90 100644
--- a/Sources/MintCLI/Commands/PackageCommand.swift
+++ b/Sources/MintCLI/Commands/PackageCommand.swift
@@ -1,14 +1,13 @@
-import Foundation
 import MintKit
-import PathKit
 import SwiftCLI
 
 class PackageCommand: MintfileCommand {
 
-    @Param var package: String
+    @Param
+    private var package: String
 
     @Flag("-s", "--silent", description: "Silences any output from Mint itself")
-    var silent: Bool
+    private var silent: Bool
 
     init(mint: Mint, name: String, description: String, parameterDescription: String? = nil) {
         var longDescription = """
diff --git a/Sources/MintCLI/Commands/RunCommand.swift b/Sources/MintCLI/Commands/RunCommand.swift
index e31410b..ce11f69 100644
--- a/Sources/MintCLI/Commands/RunCommand.swift
+++ b/Sources/MintCLI/Commands/RunCommand.swift
@@ -1,8 +1,7 @@
-import Foundation
 import MintKit
 import SwiftCLI
 
-class RunCommand: PackageCommand {
+final class RunCommand: PackageCommand {
 
     @CollectedParam var arguments: [String]
 
diff --git a/Sources/MintCLI/Commands/UninstallCommand.swift b/Sources/MintCLI/Commands/UninstallCommand.swift
index 3d7cf7a..b3f2052 100644
--- a/Sources/MintCLI/Commands/UninstallCommand.swift
+++ b/Sources/MintCLI/Commands/UninstallCommand.swift
@@ -1,10 +1,10 @@
-import Foundation
 import MintKit
 import SwiftCLI
 
-class UninstallCommand: MintCommand {
+final class UninstallCommand: MintCommand {
 
-    @Param var package: String
+    @Param
+    private var package: String
 
     init(mint: Mint) {
         super.init(mint: mint, name: "uninstall", description: "Uninstall a package by name")
diff --git a/Sources/MintCLI/Commands/WhichCommand.swift b/Sources/MintCLI/Commands/WhichCommand.swift
index 19b2d61..140af1e 100644
--- a/Sources/MintCLI/Commands/WhichCommand.swift
+++ b/Sources/MintCLI/Commands/WhichCommand.swift
@@ -1,10 +1,10 @@
-import Foundation
 import MintKit
 import SwiftCLI
 
-class WhichCommand: PackageCommand {
+final class WhichCommand: PackageCommand {
 
-    @Param var executable: String?
+    @Param
+    private var executable: String?
 
     init(mint: Mint) {
         super.init(mint: mint,
diff --git a/Sources/MintCLI/MintCLI.swift b/Sources/MintCLI/MintCLI.swift
index 618ac0f..9d63d12 100644
--- a/Sources/MintCLI/MintCLI.swift
+++ b/Sources/MintCLI/MintCLI.swift
@@ -1,15 +1,14 @@
 import Foundation
 import MintKit
 import PathKit
-import Rainbow
 import SwiftCLI
 
 public class MintCLI {
 
-    public let version = "0.17.5"
+    private let version = "0.17.5"
 
-    let mint: Mint
-    let cli: CLI
+    private let mint: Mint
+    private let cli: CLI
 
     public init() {
 
diff --git a/Sources/MintKit/Cache.swift b/Sources/MintKit/Cache.swift
index e9b0359..e8e1a57 100644
--- a/Sources/MintKit/Cache.swift
+++ b/Sources/MintKit/Cache.swift
@@ -1,4 +1,3 @@
-import Foundation
 import PathKit
 
 /// A struct used as a representation of the cache
diff --git a/Sources/MintKit/GitTag.swift b/Sources/MintKit/GitTag.swift
index 111f7b5..0dab460 100644
--- a/Sources/MintKit/GitTag.swift
+++ b/Sources/MintKit/GitTag.swift
@@ -1,4 +1,3 @@
-import Foundation
 import Version
 
 func convertTagsToVersionMap(_ tags: [String]) -> [Version: String] {
diff --git a/Sources/MintKit/InputReader.swift b/Sources/MintKit/InputReader.swift
index 1df7948..399dc79 100644
--- a/Sources/MintKit/InputReader.swift
+++ b/Sources/MintKit/InputReader.swift
@@ -1,4 +1,3 @@
-import Foundation
 import SwiftCLI
 
 extension Input {
diff --git a/Sources/MintKit/InstallStatus.swift b/Sources/MintKit/InstallStatus.swift
index e5c49d2..ab7f676 100644
--- a/Sources/MintKit/InstallStatus.swift
+++ b/Sources/MintKit/InstallStatus.swift
@@ -1,10 +1,9 @@
-import Foundation
 import PathKit
 
 struct InstallStatus {
 
     let status: Status
-    let path: Path
+    private let path: Path
 
     init(path: Path, mintPackagesPath: Path) throws {
         self.path = path
diff --git a/Sources/MintKit/Mint.swift b/Sources/MintKit/Mint.swift
index c8c9772..383a58e 100644
--- a/Sources/MintKit/Mint.swift
+++ b/Sources/MintKit/Mint.swift
@@ -38,11 +38,11 @@ public class Mint {
         self.mintFilePath = mintFilePath
     }
 
-    func output(_ string: String) {
+    private func output(_ string: String) {
         standardOut.print("🌱 \(string)")
     }
 
-    func errorOutput(_ string: String) {
+    private func errorOutput(_ string: String) {
         standardError.print("🌱 \(string)")
     }
 
@@ -55,7 +55,7 @@ public class Mint {
         var packages: [String: String]
     }
 
-    func writeMetadata(_ metadata: Metadata) throws {
+    private func writeMetadata(_ metadata: Metadata) throws {
         let data = try JSONEncoder().encode(metadata)
         try metadataPath.write(data)
     }
@@ -68,13 +68,13 @@ public class Mint {
         return try JSONDecoder().decode(Metadata.self, from: data)
     }
 
-    func addPackage(git: String, path: Path) throws {
+    private func addPackage(git: String, path: Path) throws {
         var metadata = try readMetadata()
         metadata.packages[git] = path.lastComponent
         try writeMetadata(metadata)
     }
 
-    func getGitRepos(name: String) throws -> [String] {
+    private func getGitRepos(name: String) throws -> [String] {
         let metadata = try readMetadata()
 
         let gitRepos = metadata.packages
@@ -118,7 +118,7 @@ public class Mint {
 
     /// return whether the version was resolved remotely
     @discardableResult
-    func resolvePackage(_ package: PackageReference) throws -> Bool {
+    private func resolvePackage(_ package: PackageReference) throws -> Bool {
 
         // resolve repo and version from MintFile
         if mintFilePath.exists,
@@ -227,7 +227,7 @@ public class Mint {
         return packagePath.executablePath
     }
 
-    func getPackagePath(for package: PackageReference, with arguments: inout [String], executable: String?) throws -> PackagePath {
+    private func getPackagePath(for package: PackageReference, with arguments: inout [String], executable: String?) throws -> PackagePath {
         var packagePath = PackagePath(path: packagesPath, package: package)
 
         if let executable = executable {
@@ -455,7 +455,7 @@ public class Mint {
         }
     }
 
-    func linkPackage(_ package: PackageReference, executable: String, overwrite: Bool?) throws {
+    private func linkPackage(_ package: PackageReference, executable: String, overwrite: Bool?) throws {
 
         let packagePath = PackagePath(path: packagesPath, package: package, executable: executable)
         let installPath = linkPath + packagePath.executable!
diff --git a/Sources/MintKit/MintError.swift b/Sources/MintKit/MintError.swift
index 56d6c99..07acd31 100644
--- a/Sources/MintKit/MintError.swift
+++ b/Sources/MintKit/MintError.swift
@@ -1,5 +1,4 @@
 import Foundation
-import SwiftCLI
 
 public enum MintError: Error, CustomStringConvertible, Equatable, LocalizedError {
     case packageNotFound(String)
diff --git a/Sources/MintKit/Mintfile.swift b/Sources/MintKit/Mintfile.swift
index 1cf1683..a9a7d3f 100644
--- a/Sources/MintKit/Mintfile.swift
+++ b/Sources/MintKit/Mintfile.swift
@@ -1,4 +1,3 @@
-import Foundation
 import PathKit
 
 public struct Mintfile {
diff --git a/Sources/MintKit/PackagePath.swift b/Sources/MintKit/PackagePath.swift
index b5061c8..4fcc506 100644
--- a/Sources/MintKit/PackagePath.swift
+++ b/Sources/MintKit/PackagePath.swift
@@ -1,4 +1,3 @@
-import Foundation
 import PathKit
 
 /// Contains all the paths for packages
diff --git a/Sources/MintKit/PackageReference.swift b/Sources/MintKit/PackageReference.swift
index 4054211..d17a3db 100644
--- a/Sources/MintKit/PackageReference.swift
+++ b/Sources/MintKit/PackageReference.swift
@@ -1,5 +1,4 @@
 import Foundation
-import PathKit
 
 public class PackageReference {
     public var repo: String
diff --git a/Sources/MintKit/StringExtensions.swift b/Sources/MintKit/StringExtensions.swift
index 1223190..dd792c9 100644
--- a/Sources/MintKit/StringExtensions.swift
+++ b/Sources/MintKit/StringExtensions.swift
@@ -1,5 +1,3 @@
-import Foundation
-
 public extension String {
 
     var quoted: String {
diff --git a/Tests/MintTests/Fixtures.swift b/Tests/MintTests/Fixtures.swift
index ec688b2..7ddb90f 100644
--- a/Tests/MintTests/Fixtures.swift
+++ b/Tests/MintTests/Fixtures.swift
@@ -1,4 +1,3 @@
-import Foundation
 import PathKit
 
 let mintFileFixture = Path(#file) + "../../Fixtures/Mintfile"
diff --git a/Tests/MintTests/MintfileTests.swift b/Tests/MintTests/MintfileTests.swift
index b334d50..a99b49c 100644
--- a/Tests/MintTests/MintfileTests.swift
+++ b/Tests/MintTests/MintfileTests.swift
@@ -1,5 +1,4 @@
 @testable import MintKit
-import PathKit
 import XCTest
 
 class MintfileTests: XCTestCase {
diff --git a/Tests/MintTests/PackageTests.swift b/Tests/MintTests/PackageTests.swift
index b31dbd3..6c1ca4e 100644
--- a/Tests/MintTests/PackageTests.swift
+++ b/Tests/MintTests/PackageTests.swift
@@ -1,6 +1,4 @@
 @testable import MintKit
-import PathKit
-import SwiftCLI
 import XCTest
 
 class PackageTests: XCTestCase {
diff --git a/Tests/MintTests/TestHelpers.swift b/Tests/MintTests/TestHelpers.swift
index 454e8e4..b38cabb 100644
--- a/Tests/MintTests/TestHelpers.swift
+++ b/Tests/MintTests/TestHelpers.swift
@@ -1,4 +1,3 @@
-import Foundation
 import XCTest
 
 func expectError<T>(_ expectedError: T, file: StaticString = #file, line: UInt = #line, closure: () throws -> Void) where T: Error, T: Equatable {