diff --git a/Package.resolved b/Package.resolved
index 5557773..5a6787f 100644
--- a/Package.resolved
+++ b/Package.resolved
@@ -6,8 +6,8 @@
         "repositoryURL": "https://github.com/apple/swift-argument-parser",
         "state": {
           "branch": null,
-          "revision": "9f04d1ff1afbccd02279338a2c91e5f27c45e93a",
-          "version": "0.0.5"
+          "revision": "986d191f94cec88f6350056da59c2e59e83d1229",
+          "version": "0.4.3"
         }
       },
       {
diff --git a/Package.swift b/Package.swift
index 6c065ae..8f2ee7c 100644
--- a/Package.swift
+++ b/Package.swift
@@ -9,8 +9,8 @@ let package = Package(
         .executable(name: "transmog", targets: ["Transmog"])
     ],
     dependencies: [
-        .package(url: "https://github.com/apple/swift-argument-parser", from: "0.0.1"),
-        .package(url: "https://github.com/thii/SwiftHEXColors", from: "1.4.0")
+        .package(url: "https://github.com/apple/swift-argument-parser", .upToNextMajor(from: "0.4.0")),
+        .package(url: "https://github.com/thii/SwiftHEXColors", .upToNextMajor(from: "1.4.0")),
     ],
     targets: [
         .target(
diff --git a/Sources/Transmog/main.swift b/Sources/Transmog/main.swift
index 6c8dbfd..30c5613 100644
--- a/Sources/Transmog/main.swift
+++ b/Sources/Transmog/main.swift
@@ -17,20 +17,18 @@ struct Transmog: ParsableCommand {
     )
 
     @Argument(
-        // default: "~/Desktop/theme.json", // uncomment for testing within Xcode
         help: ArgumentHelp(
             "Path or URL of the VSCode theme file (.json). GitHub links are also supported.",
             valueName: "theme-file-path-or-url"
         )
     )
-    var pathOrURL: String
+    var pathOrURL: String // = "~/Desktop/theme.json" // uncomment default value for testing within Xcode
 
     @Option(
         name: .shortAndLong,
-        default: "~/Library/Developer/Xcode/UserData/FontAndColorThemes/",
         help: "Output directory path (optional)"
     )
-    var output: String
+    var output: String = "~/Library/Developer/Xcode/UserData/FontAndColorThemes/"
 
     @Flag(
         name: .shortAndLong,
@@ -39,7 +37,7 @@ struct Transmog: ParsableCommand {
         This will cause theme colors to look different in Xcode from what they appear like in VSCode.
         """
     )
-    var skipColorProfileCorrection: Bool
+    var skipColorProfileCorrection: Bool = false
 
     func run() throws {
         ConversionParameters.skipColorProfileCorrection = skipColorProfileCorrection