diff --git a/Package.swift b/Package.swift
index 0dca27c..ef103c9 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,4 +1,4 @@
-// swift-tools-version:5.6
+// swift-tools-version:5.7
 //
 // This source file is part of the Swift.org open source project
 //
diff --git a/Plugins/Swift-DocC Convert/SwiftDocCConvert.swift b/Plugins/Swift-DocC Convert/SwiftDocCConvert.swift
index 1320352..4dae8c9 100644
--- a/Plugins/Swift-DocC Convert/SwiftDocCConvert.swift	
+++ b/Plugins/Swift-DocC Convert/SwiftDocCConvert.swift	
@@ -108,11 +108,7 @@ import PackagePlugin
             }
             
             let archiveOutputPath = archiveOutputDir(for: target)
-            let dependencyArchivePaths: [String] = if isCombinedDocumentationEnabled {
-                task.dependencies.map { archiveOutputDir(for: $0.target) }
-            } else {
-                []
-            }
+            let dependencyArchivePaths: [String] = isCombinedDocumentationEnabled ? task.dependencies.map { archiveOutputDir(for: $0.target) } : []
             
             if verbose {
                 print("documentation archive output path: '\(archiveOutputPath)'")
diff --git a/Sources/SwiftDocCPluginUtilities/CommandLineArguments/CommandLineArguments.swift b/Sources/SwiftDocCPluginUtilities/CommandLineArguments/CommandLineArguments.swift
index 1cc7818..8463ea3 100644
--- a/Sources/SwiftDocCPluginUtilities/CommandLineArguments/CommandLineArguments.swift
+++ b/Sources/SwiftDocCPluginUtilities/CommandLineArguments/CommandLineArguments.swift
@@ -28,10 +28,10 @@ public struct CommandLineArguments {
     }
     
     /// All remaining (not-yet extracted) options or flags, up to the the first `--` separator (if there is one).
-    private var remainingOptionsOrFlags: [String].SubSequence
+    private var remainingOptionsOrFlags: Array<String>.SubSequence
     
     /// All literals after the first `--` separator (if there is one).
-    private var literalValues: [String].SubSequence
+    private var literalValues: Array<String>.SubSequence
     
     // MARK: Extract
     
diff --git a/Sources/SwiftDocCPluginUtilities/HelpInformation.swift b/Sources/SwiftDocCPluginUtilities/HelpInformation.swift
index e6dd5a4..56c8f7b 100644
--- a/Sources/SwiftDocCPluginUtilities/HelpInformation.swift
+++ b/Sources/SwiftDocCPluginUtilities/HelpInformation.swift
@@ -136,15 +136,16 @@ private extension DocumentedFlag {
             flagListText += " / \(inverseNames.listForHelpDescription)"
         }
         
-        var description = if flagListText.count < 23 {
+        var description: String
+        if flagListText.count < 23 {
             // The flag is short enough to fit the abstract on the same line
-            """
+            description = """
               \(flagListText.padding(toLength: 23, withPad: " ", startingAt: 0)) \(abstract)
             
             """
         } else {
             // The flag is too long to fit the abstract on the same line
-            """
+            description = """
               \(flagListText)
                                       \(abstract)