diff --git a/.gitmodules b/.gitmodules
index f534e1db62..d451957f2e 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,6 +1,3 @@
-[submodule "Carthage/Checkouts/Result"]
-	path = Carthage/Checkouts/Result
-	url = https://github.com/antitypical/Result.git
 [submodule "Carthage/Checkouts/SWXMLHash"]
 	path = Carthage/Checkouts/SWXMLHash
 	url = https://github.com/drmohundro/SWXMLHash.git
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8761ee8ddf..dc22c7365a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,12 @@
   [PaulTaykalo](https://github.com/PaulTaykalo)
   [#2922](https://github.com/realm/SwiftLint/issues/2922)
 
+* Update Commandant dependency to version 0.17.0, removing the
+  `antitypical/Result` dependency in favor of the Swift standard
+  library's `Result` type.  
+  [JP Simard](https://github.com/jpsim)
+  [#623](https://github.com/jpsim/SourceKitten/issues/623)
+
 #### Experimental
 
 * None.
diff --git a/Cartfile b/Cartfile
index 90f552f7a7..3365297ce5 100644
--- a/Cartfile
+++ b/Cartfile
@@ -1,2 +1,2 @@
-github "jpsim/SourceKitten" ~> 0.26.0
+github "jpsim/SourceKitten" ~> 0.27.0
 github "scottrhoyt/SwiftyTextTable" ~> 0.9.0
diff --git a/Cartfile.private b/Cartfile.private
index 083fb6a0bf..2a3b3d6a44 100644
--- a/Cartfile.private
+++ b/Cartfile.private
@@ -1,3 +1,3 @@
-github "Carthage/Commandant" ~> 0.16.0
+github "Carthage/Commandant" ~> 0.17.0
 github "jpsim/Yams" ~> 2.0.0
 github "jspahrsummers/xcconfigs" ~> 0.12.0
diff --git a/Cartfile.resolved b/Cartfile.resolved
index 7a31a24920..28ac2ecfe0 100644
--- a/Cartfile.resolved
+++ b/Cartfile.resolved
@@ -1,7 +1,6 @@
-github "Carthage/Commandant" "0.16.0"
-github "antitypical/Result" "4.1.0"
+github "Carthage/Commandant" "0.17.0"
 github "drmohundro/SWXMLHash" "5.0.1"
-github "jpsim/SourceKitten" "0.26.0"
+github "jpsim/SourceKitten" "0.27.0"
 github "jpsim/Yams" "2.0.0"
 github "jspahrsummers/xcconfigs" "0.12"
 github "scottrhoyt/SwiftyTextTable" "0.9.0"
diff --git a/Carthage/Checkouts/Commandant b/Carthage/Checkouts/Commandant
index 2cd0210f89..ab68611013 160000
--- a/Carthage/Checkouts/Commandant
+++ b/Carthage/Checkouts/Commandant
@@ -1 +1 @@
-Subproject commit 2cd0210f897fe46c6ce42f52ccfa72b3bbb621a0
+Subproject commit ab68611013dec67413628ac87c1f29e8427bc8e4
diff --git a/Carthage/Checkouts/Result b/Carthage/Checkouts/Result
deleted file mode 160000
index 2ca499ba45..0000000000
--- a/Carthage/Checkouts/Result
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 2ca499ba456795616fbc471561ff1d963e6ae160
diff --git a/Carthage/Checkouts/SourceKitten b/Carthage/Checkouts/SourceKitten
index cc1f16acc7..356551fc51 160000
--- a/Carthage/Checkouts/SourceKitten
+++ b/Carthage/Checkouts/SourceKitten
@@ -1 +1 @@
-Subproject commit cc1f16acc70630d27498e81078789f5fa55d7463
+Subproject commit 356551fc513eb12ed779bb369f79cf86a3a01599
diff --git a/Package.resolved b/Package.resolved
index 1e4407e4aa..6b8d410da6 100644
--- a/Package.resolved
+++ b/Package.resolved
@@ -6,8 +6,8 @@
         "repositoryURL": "https://github.com/Carthage/Commandant.git",
         "state": {
           "branch": null,
-          "revision": "2cd0210f897fe46c6ce42f52ccfa72b3bbb621a0",
-          "version": "0.16.0"
+          "revision": "ab68611013dec67413628ac87c1f29e8427bc8e4",
+          "version": "0.17.0"
         }
       },
       {
@@ -46,22 +46,13 @@
           "version": "2.2.0"
         }
       },
-      {
-        "package": "Result",
-        "repositoryURL": "https://github.com/antitypical/Result.git",
-        "state": {
-          "branch": null,
-          "revision": "2ca499ba456795616fbc471561ff1d963e6ae160",
-          "version": "4.1.0"
-        }
-      },
       {
         "package": "SourceKitten",
         "repositoryURL": "https://github.com/jpsim/SourceKitten.git",
         "state": {
           "branch": null,
-          "revision": "cc1f16acc70630d27498e81078789f5fa55d7463",
-          "version": "0.26.0"
+          "revision": "356551fc513eb12ed779bb369f79cf86a3a01599",
+          "version": "0.27.0"
         }
       },
       {
diff --git a/Package.swift b/Package.swift
index 7ad049f391..c2ebe5aac1 100644
--- a/Package.swift
+++ b/Package.swift
@@ -14,8 +14,8 @@ let package = Package(
         .library(name: "SwiftLintFramework", targets: ["SwiftLintFramework"])
     ],
     dependencies: [
-        .package(url: "https://github.com/Carthage/Commandant.git", .upToNextMinor(from: "0.16.0")),
-        .package(url: "https://github.com/jpsim/SourceKitten.git", from: "0.26.0"),
+        .package(url: "https://github.com/Carthage/Commandant.git", .upToNextMinor(from: "0.17.0")),
+        .package(url: "https://github.com/jpsim/SourceKitten.git", from: "0.27.0"),
         .package(url: "https://github.com/jpsim/Yams.git", from: "2.0.0"),
         .package(url: "https://github.com/scottrhoyt/SwiftyTextTable.git", from: "0.9.0"),
     ] + (addCryptoSwift ? [.package(url: "https://github.com/krzyzanowskim/CryptoSwift.git", .upToNextMinor(from: "1.0.0"))] : []),
diff --git a/Source/swiftlint/Commands/AnalyzeCommand.swift b/Source/swiftlint/Commands/AnalyzeCommand.swift
index 6bcb3a043b..d9f5256889 100644
--- a/Source/swiftlint/Commands/AnalyzeCommand.swift
+++ b/Source/swiftlint/Commands/AnalyzeCommand.swift
@@ -1,5 +1,4 @@
 import Commandant
-import Result
 import SwiftLintFramework
 
 struct AnalyzeCommand: CommandProtocol {
diff --git a/Source/swiftlint/Commands/AutoCorrectCommand.swift b/Source/swiftlint/Commands/AutoCorrectCommand.swift
index 71ee17bdf0..89fb56b093 100644
--- a/Source/swiftlint/Commands/AutoCorrectCommand.swift
+++ b/Source/swiftlint/Commands/AutoCorrectCommand.swift
@@ -1,5 +1,4 @@
 import Commandant
-import Result
 import SwiftLintFramework
 
 struct AutoCorrectCommand: CommandProtocol {
diff --git a/Source/swiftlint/Commands/GenerateDocsCommand.swift b/Source/swiftlint/Commands/GenerateDocsCommand.swift
index 3c7a7ff4aa..54a28b4573 100644
--- a/Source/swiftlint/Commands/GenerateDocsCommand.swift
+++ b/Source/swiftlint/Commands/GenerateDocsCommand.swift
@@ -1,5 +1,4 @@
 import Commandant
-import Result
 import SwiftLintFramework
 
 struct GenerateDocsCommand: CommandProtocol {
diff --git a/Source/swiftlint/Commands/LintCommand.swift b/Source/swiftlint/Commands/LintCommand.swift
index 216d2a89bf..f9b26be9ea 100644
--- a/Source/swiftlint/Commands/LintCommand.swift
+++ b/Source/swiftlint/Commands/LintCommand.swift
@@ -1,5 +1,4 @@
 import Commandant
-import Result
 
 struct LintCommand: CommandProtocol {
     let verb = "lint"
diff --git a/Source/swiftlint/Commands/RulesCommand.swift b/Source/swiftlint/Commands/RulesCommand.swift
index ac69cc9b96..fa7a558363 100644
--- a/Source/swiftlint/Commands/RulesCommand.swift
+++ b/Source/swiftlint/Commands/RulesCommand.swift
@@ -6,7 +6,6 @@ import Glibc
 #else
 #error("Unsupported platform")
 #endif
-import Result
 import SwiftLintFramework
 import SwiftyTextTable
 
diff --git a/Source/swiftlint/Commands/VersionCommand.swift b/Source/swiftlint/Commands/VersionCommand.swift
index 48e8ccb2e3..992c181d76 100644
--- a/Source/swiftlint/Commands/VersionCommand.swift
+++ b/Source/swiftlint/Commands/VersionCommand.swift
@@ -1,5 +1,4 @@
 import Commandant
-import Result
 import SwiftLintFramework
 
 struct VersionCommand: CommandProtocol {
diff --git a/Source/swiftlint/Extensions/Configuration+CommandLine.swift b/Source/swiftlint/Extensions/Configuration+CommandLine.swift
index 8102348f54..cbc1341b9a 100644
--- a/Source/swiftlint/Extensions/Configuration+CommandLine.swift
+++ b/Source/swiftlint/Extensions/Configuration+CommandLine.swift
@@ -1,7 +1,6 @@
 import Commandant
 import Dispatch
 import Foundation
-import Result
 import SourceKittenFramework
 import SwiftLintFramework
 
@@ -28,7 +27,7 @@ private func scriptInputFiles() -> Result<[SwiftLintFile], CommandantError<()>>
     }()
 
     return count.flatMap { count in
-        let inputFiles = (0..<count).compactMap { fileNumber -> SwiftLintFile? in
+        return .success((0..<count).compactMap { fileNumber in
             switch getEnvironmentVariable("SCRIPT_INPUT_FILE_\(fileNumber)") {
             case let .success(path):
                 if path.bridge().isSwiftFile() {
@@ -39,8 +38,7 @@ private func scriptInputFiles() -> Result<[SwiftLintFile], CommandantError<()>>
                 queuedPrintError(String(describing: error))
                 return nil
             }
-        }
-        return Result(inputFiles)
+        })
     }
 }
 
diff --git a/Source/swiftlint/Helpers/LintOrAnalyzeCommand.swift b/Source/swiftlint/Helpers/LintOrAnalyzeCommand.swift
index 83eddbe5e7..e0d68fd412 100644
--- a/Source/swiftlint/Helpers/LintOrAnalyzeCommand.swift
+++ b/Source/swiftlint/Helpers/LintOrAnalyzeCommand.swift
@@ -1,7 +1,6 @@
 import Commandant
 import Dispatch
 import Foundation
-import Result
 import SwiftLintFramework
 
 enum LintOrAnalyzeMode {
diff --git a/Source/swiftlint/Helpers/LintableFilesVisitor.swift b/Source/swiftlint/Helpers/LintableFilesVisitor.swift
index 468bbb290f..d8c9c5f413 100644
--- a/Source/swiftlint/Helpers/LintableFilesVisitor.swift
+++ b/Source/swiftlint/Helpers/LintableFilesVisitor.swift
@@ -1,6 +1,5 @@
 import Commandant
 import Foundation
-import Result
 import SourceKittenFramework
 import SwiftLintFramework
 
diff --git a/SwiftLint.xcodeproj/project.pbxproj b/SwiftLint.xcodeproj/project.pbxproj
index aeb6fd8f4d..3b9ae6be16 100644
--- a/SwiftLint.xcodeproj/project.pbxproj
+++ b/SwiftLint.xcodeproj/project.pbxproj
@@ -135,10 +135,8 @@
 		6C1D763221A4E69600DEF783 /* Request+DisableSourceKit.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6C1D763121A4E69600DEF783 /* Request+DisableSourceKit.swift */; };
 		6C7045441C6ADA450003F15A /* SourceKitCrashTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6C7045431C6ADA450003F15A /* SourceKitCrashTests.swift */; };
 		6CB8A80C1D11A7E10052816E /* Commandant.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = E8BA7E101B07A3EC003E02D0 /* Commandant.framework */; };
-		6CB8A80D1D11A7E10052816E /* Result.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = E8BA7E121B07A3F3003E02D0 /* Result.framework */; };
 		6CC4259B1C77046200AEA885 /* SyntaxMap+SwiftLint.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6CC4259A1C77046200AEA885 /* SyntaxMap+SwiftLint.swift */; };
 		6CCFCF2A1CFEF729003239EB /* Commandant.framework in Embed Frameworks into SwiftLintFramework.framework */ = {isa = PBXBuildFile; fileRef = E8BA7E101B07A3EC003E02D0 /* Commandant.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
-		6CCFCF2C1CFEF72D003239EB /* Result.framework in Embed Frameworks into SwiftLintFramework.framework */ = {isa = PBXBuildFile; fileRef = E8BA7E121B07A3F3003E02D0 /* Result.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
 		6CCFCF2D1CFEF731003239EB /* SourceKittenFramework.framework in Embed Frameworks into SwiftLintFramework.framework */ = {isa = PBXBuildFile; fileRef = E876BFBD1B07828500114ED5 /* SourceKittenFramework.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
 		6CCFCF2E1CFEF73A003239EB /* SWXMLHash.framework in Embed Frameworks into SwiftLintFramework.framework */ = {isa = PBXBuildFile; fileRef = E8C0DFCC1AD349DB007EE3D4 /* SWXMLHash.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
 		6CCFCF2F1CFEF73E003239EB /* SwiftyTextTable.framework in Embed Frameworks into SwiftLintFramework.framework */ = {isa = PBXBuildFile; fileRef = 3BBF2F9C1C640A0F006CD775 /* SwiftyTextTable.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
@@ -469,7 +467,6 @@
 			dstSubfolderSpec = 10;
 			files = (
 				6CCFCF2A1CFEF729003239EB /* Commandant.framework in Embed Frameworks into SwiftLintFramework.framework */,
-				6CCFCF2C1CFEF72D003239EB /* Result.framework in Embed Frameworks into SwiftLintFramework.framework */,
 				6CCFCF2D1CFEF731003239EB /* SourceKittenFramework.framework in Embed Frameworks into SwiftLintFramework.framework */,
 				6CCFCF2E1CFEF73A003239EB /* SWXMLHash.framework in Embed Frameworks into SwiftLintFramework.framework */,
 				6CCFCF2F1CFEF73E003239EB /* SwiftyTextTable.framework in Embed Frameworks into SwiftLintFramework.framework */,
@@ -933,7 +930,6 @@
 		E8B067801C13E49600E9E13F /* Configuration+CommandLine.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "Configuration+CommandLine.swift"; sourceTree = "<group>"; };
 		E8B67C3D1C095E6300FDED8E /* Correction.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Correction.swift; sourceTree = "<group>"; };
 		E8BA7E101B07A3EC003E02D0 /* Commandant.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; path = Commandant.framework; sourceTree = BUILT_PRODUCTS_DIR; };
-		E8BA7E121B07A3F3003E02D0 /* Result.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; path = Result.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		E8BB8F9B1B17DE3B00199606 /* RulesTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = RulesTests.swift; sourceTree = "<group>"; };
 		E8BDE3FE1EDF91B6002EC12F /* RuleList.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = RuleList.swift; sourceTree = "<group>"; };
 		E8BE1FCB1E07687400F781C7 /* Yams.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; path = Yams.framework; sourceTree = BUILT_PRODUCTS_DIR; };
@@ -974,7 +970,6 @@
 			buildActionMask = 2147483647;
 			files = (
 				6CB8A80C1D11A7E10052816E /* Commandant.framework in Frameworks */,
-				6CB8A80D1D11A7E10052816E /* Result.framework in Frameworks */,
 				D0E7B65319E9C6AD00EDBA4D /* SwiftLintFramework.framework in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -1066,7 +1061,6 @@
 			isa = PBXGroup;
 			children = (
 				E8BA7E101B07A3EC003E02D0 /* Commandant.framework */,
-				E8BA7E121B07A3F3003E02D0 /* Result.framework */,
 				5499CA961A2394B700783309 /* Components.plist */,
 				5499CA971A2394B700783309 /* Info.plist */,
 			);
diff --git a/SwiftLint.xcworkspace/contents.xcworkspacedata b/SwiftLint.xcworkspace/contents.xcworkspacedata
index ea52241d91..9cc392b015 100644
--- a/SwiftLint.xcworkspace/contents.xcworkspacedata
+++ b/SwiftLint.xcworkspace/contents.xcworkspacedata
@@ -10,9 +10,6 @@
    <FileRef
       location = "group:Carthage/Checkouts/Commandant/Commandant.xcodeproj">
    </FileRef>
-   <FileRef
-      location = "group:Carthage/Checkouts/Result/Result.xcodeproj">
-   </FileRef>
    <FileRef
       location = "group:Carthage/Checkouts/SWXMLHash/SWXMLHash.xcodeproj">
    </FileRef>
diff --git a/SwiftLintFramework.podspec b/SwiftLintFramework.podspec
index 8c63d18ae6..4e211bac0a 100644
--- a/SwiftLintFramework.podspec
+++ b/SwiftLintFramework.podspec
@@ -8,8 +8,8 @@ Pod::Spec.new do |s|
   s.author              = { 'JP Simard' => 'jp@jpsim.com' }
   s.platform            = :osx, '10.10'
   s.source_files        = 'Source/SwiftLintFramework/**/*.swift'
-  s.swift_versions      = ['4.2', '5.0']
+  s.swift_versions      = ['5.0', '5.1']
   s.pod_target_xcconfig = { 'APPLICATION_EXTENSION_API_ONLY' => 'YES' }
-  s.dependency            'SourceKittenFramework', '~> 0.26.0'
+  s.dependency            'SourceKittenFramework', '~> 0.27.0'
   s.dependency            'Yams', '~> 2.0'
 end
diff --git a/Tests/SwiftLintFrameworkTests/LinterCacheTests.swift b/Tests/SwiftLintFrameworkTests/LinterCacheTests.swift
index 8dfc7cabd5..fbbf5d37e5 100644
--- a/Tests/SwiftLintFrameworkTests/LinterCacheTests.swift
+++ b/Tests/SwiftLintFrameworkTests/LinterCacheTests.swift
@@ -301,7 +301,9 @@ class LinterCacheTests: XCTestCase {
 
     // swiftlint:disable:next function_body_length
     func testDetectSwiftVersion() {
-        #if compiler(>=5.1.1)
+        #if compiler(>=5.1.2)
+            let version = "5.1.2"
+        #elseif compiler(>=5.1.1)
             let version = "5.1.1"
         #elseif compiler(>=5.1.0)
             let version = "5.1.0"