diff --git a/.swift-version b/.swift-version
index bf77d54..819e07a 100644
--- a/.swift-version
+++ b/.swift-version
@@ -1 +1 @@
-4.2
+5.0
diff --git a/Arrow.framework.zip b/Arrow.framework.zip
index 0330f0a..a7f6b5c 100644
Binary files a/Arrow.framework.zip and b/Arrow.framework.zip differ
diff --git a/Arrow.podspec b/Arrow.podspec
index b553262..7f509c1 100644
--- a/Arrow.podspec
+++ b/Arrow.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'Arrow'
-  s.version          = "4.2.0"
+  s.version          = "5.0.0"
   s.summary          = "Elegant JSON Parsing in Swift"
   s.homepage         = "https://github.com/freshOS/Arrow"
   s.license          = { :type => "MIT", :file => "LICENSE" }
diff --git a/Arrow.xcodeproj/project.pbxproj b/Arrow.xcodeproj/project.pbxproj
index b19565c..48436b6 100644
--- a/Arrow.xcodeproj/project.pbxproj
+++ b/Arrow.xcodeproj/project.pbxproj
@@ -268,23 +268,23 @@
 			attributes = {
 				LastSwiftMigration = 0700;
 				LastSwiftUpdateCheck = 0730;
-				LastUpgradeCheck = 1000;
+				LastUpgradeCheck = 1020;
 				ORGANIZATIONNAME = "Sacha Durand Saint Omer";
 				TargetAttributes = {
 					99C292E61B24AD5E0008C32B = {
 						CreatedOnToolsVersion = 6.3.1;
-						LastSwiftMigration = 0900;
+						LastSwiftMigration = 1020;
 					};
 					99C292F01B24AD5F0008C32B = {
 						CreatedOnToolsVersion = 6.3.1;
 						DevelopmentTeam = A6CJ26NGRU;
-						LastSwiftMigration = 0900;
+						LastSwiftMigration = 1020;
 					};
 				};
 			};
 			buildConfigurationList = 99C292B81B24AD4A0008C32B /* Build configuration list for PBXProject "Arrow" */;
 			compatibilityVersion = "Xcode 3.2";
-			developmentRegion = English;
+			developmentRegion = en;
 			hasScannedForEncodings = 0;
 			knownRegions = (
 				en,
@@ -399,6 +399,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_LOCALIZABILITY_NONLOCALIZED = YES;
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_CODE_COVERAGE = NO;
@@ -448,7 +449,7 @@
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = iphoneos;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Debug;
 		};
@@ -456,6 +457,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_LOCALIZABILITY_NONLOCALIZED = YES;
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_CODE_COVERAGE = NO;
@@ -496,7 +498,8 @@
 				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
-				SWIFT_VERSION = 4.2;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_VERSION = 5.0;
 				VALIDATE_PRODUCT = YES;
 			};
 			name = Release;
@@ -522,8 +525,7 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_SWIFT3_OBJC_INFERENCE = Default;
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
@@ -547,8 +549,7 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
 				SWIFT_OPTIMIZATION_LEVEL = "-O";
-				SWIFT_SWIFT3_OBJC_INFERENCE = Default;
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
@@ -568,8 +569,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.fresh.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_SWIFT3_OBJC_INFERENCE = Default;
-				SWIFT_VERSION = 4.0;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Debug;
 		};
@@ -583,8 +583,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = "com.fresh.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OPTIMIZATION_LEVEL = "-O";
-				SWIFT_SWIFT3_OBJC_INFERENCE = Default;
-				SWIFT_VERSION = 4.0;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Release;
 		};
diff --git a/Arrow.xcodeproj/xcshareddata/xcschemes/Arrow.xcscheme b/Arrow.xcodeproj/xcshareddata/xcschemes/Arrow.xcscheme
index b5bc6f3..c51ab08 100644
--- a/Arrow.xcodeproj/xcshareddata/xcschemes/Arrow.xcscheme
+++ b/Arrow.xcodeproj/xcshareddata/xcschemes/Arrow.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1000"
+   LastUpgradeVersion = "1020"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/ArrowTests/NativeTypesTests.swift b/ArrowTests/NativeTypesTests.swift
index 78d987b..64ad413 100644
--- a/ArrowTests/NativeTypesTests.swift
+++ b/ArrowTests/NativeTypesTests.swift
@@ -45,9 +45,9 @@ func jsonForName(_ name: String) -> JSON? {
     let bundle = Bundle(for: NativeTypesTests.self)
     if let path: String = bundle.path(forResource: name, ofType: "json"),
         let jsonData = try? Data(contentsOf: URL(fileURLWithPath: path)),
-        let json = try? JSONSerialization
+        let json = ((try? JSONSerialization
             .jsonObject(with: jsonData,
-                                options: .mutableContainers) as? NSDictionary,
+                                options: .mutableContainers) as? NSDictionary) as NSDictionary??),
         let dic = json as? [String: Any] {
             return JSON(dic)
     }
diff --git a/README.md b/README.md
index 857da6b..52b786f 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 # Arrow
 
-[![Language: Swift 2, 3 and 4 3](https://img.shields.io/badge/language-swift2|swift3|swift4-f48041.svg?style=flat)](https://developer.apple.com/swift)
+[![Language: Swift 5](https://img.shields.io/badge/language-swift5-f48041.svg?style=flat)](https://developer.apple.com/swift)
 ![Platform: iOS 8+](https://img.shields.io/badge/platform-iOS%208%2B-blue.svg?style=flat)
 [![Carthage compatible](https://img.shields.io/badge/Carthage-compatible-4BC51D.svg?style=flat)](https://github.com/Carthage/Carthage)
 [![Cocoapods compatible](https://img.shields.io/badge/Cocoapods-compatible-4BC51D.svg?style=flat)](https://cocoapods.org)
@@ -241,6 +241,7 @@ if let collection = json.collection {
 - Swift 4 -> version [**4.0.0**](https://github.com/freshOS/Arrow/releases/tag/4.0.0)
 - Swift 4.1 -> version [**4.1.0**](https://github.com/freshOS/Arrow/releases/tag/4.1.0)
 - Swift 4.2 -> version [**4.2.0**](https://github.com/freshOS/Arrow/releases/tag/4.2.0)
+- Swift 5.0 -> version [**5.0.0**](https://github.com/freshOS/Arrow/releases/tag/5.0.0)
 
 ## Acknoledgments
 This wouldn't exist without [YannickDot](https://github.com/YannickDot), [Damien-nd](https://github.com/damien-nd) and [maxkonovalov](https://github.com/maxkonovalov)
diff --git a/Source/Arrow.swift b/Source/Arrow.swift
index ae7cc81..829cc9a 100644
--- a/Source/Arrow.swift
+++ b/Source/Arrow.swift
@@ -36,7 +36,7 @@ public protocol ArrowParsable {
 
 public extension ArrowParsable {
     /// A shortcut to init custom models with JSON.
-    public init?(_ json: JSON?) {
+    init?(_ json: JSON?) {
         guard let json = json else {
             return nil
         }
diff --git a/Source/Info.plist b/Source/Info.plist
index b6ba904..e677190 100644
--- a/Source/Info.plist
+++ b/Source/Info.plist
@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>4.2.0</string>
+	<string>5.0.0</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>