diff --git a/Sources/mas/Commands/Lucky.swift b/Sources/mas/Commands/Lucky.swift
index a75fbea..b79c776 100644
--- a/Sources/mas/Commands/Lucky.swift
+++ b/Sources/mas/Commands/Lucky.swift
@@ -56,7 +56,7 @@ extension Mas {
         ///   - appID: App identifier
         ///   - appLibrary: Library of installed apps
         /// - Throws: Any error that occurs while attempting to install the app.
-        fileprivate func install(appID: AppID, appLibrary: AppLibrary) throws {
+        private func install(appID: AppID, appLibrary: AppLibrary) throws {
             // Try to download applications with given identifiers and collect results
             if let product = appLibrary.installedApp(withAppID: appID), !force {
                 printWarning("\(product.appName) is already installed")
diff --git a/Tests/masTests/Errors/MASErrorTestCase.swift b/Tests/masTests/Errors/MASErrorTestCase.swift
index 0d59cb2..fdc044e 100644
--- a/Tests/masTests/Errors/MASErrorTestCase.swift
+++ b/Tests/masTests/Errors/MASErrorTestCase.swift
@@ -13,15 +13,15 @@ import XCTest
 
 class MASErrorTestCase: XCTestCase {
     private let errorDomain = "MAS"
-    var error: MASError!
-    var nserror: NSError!
+    private var error: MASError!
+    private var nserror: NSError!
 
     /// Convenience property for setting the value which will be use for the localized description
     /// value of the next NSError created.
     ///
     /// Only used when the NSError does not have a user info
     /// entry for localized description.
-    var localizedDescription: String {
+    private var localizedDescription: String {
         get { "dummy value" }
         set {
             NSError.setUserInfoValueProvider(forDomain: errorDomain) { _, _ in
diff --git a/Tests/masTests/Network/NetworkManagerTests.swift b/Tests/masTests/Network/NetworkManagerTests.swift
index a92227c..450bb39 100644
--- a/Tests/masTests/Network/NetworkManagerTests.swift
+++ b/Tests/masTests/Network/NetworkManagerTests.swift
@@ -11,7 +11,7 @@ import XCTest
 @testable import mas
 
 class NetworkManagerTests: XCTestCase {
-    override public func setUp() {
+    override func setUp() {
         super.setUp()
         Mas.initialize()
     }