bump to 4.1.

.swift-version

@@ -1 +1 @@
-4.2
+5.0

Alertift.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = "Alertift"
-  s.version          = "4.0"
+  s.version          = "4.1"
   s.summary          = "UIAlertControlelr wrapper for Swift."
   s.homepage         = "https://github.com/sgr-ksmt/Alertift"
   # s.screenshots     = ""
@@ -10,5 +10,5 @@ Pod::Spec.new do |s|
   s.platform         = :ios, '9.0'
   s.requires_arc     = true
   s.source_files     = "Sources/**/*"
-  s.swift_version    = '4.2'
+  s.swift_version    = '5.0'
 end

README.md

@@ -10,7 +10,7 @@ Alertift.alert(title: "Alertift", message: "Alertift is swifty, modern, and awes
 ```
 
 [![GitHub release](https://img.shields.io/github/release/sgr-ksmt/Alertift.svg)](https://github.com/sgr-ksmt/Alertift/releases)
-![Language](https://img.shields.io/badge/language-Swift%204.1-orange.svg)
+![Language](https://img.shields.io/badge/language-Swift%205.0-orange.svg)
 [![Carthage Compatible](https://img.shields.io/badge/Carthage-compatible-4BC51D.svg?style=flat)](https://github.com/Carthage/Carthage)
 [![CocoaPods](https://img.shields.io/badge/Cocoa%20Pods-✓-4BC51D.svg?style=flat)](https://cocoapods.org/pods/Alertift)
 [![CocoaPodsDL](https://img.shields.io/cocoapods/dt/Alertift.svg)](https://cocoapods.org/pods/Alertift)
@@ -40,7 +40,10 @@ Alertift.alert(title: "Alertift", message: "Alertift is swifty, modern, and awes
 - Add the following to your *Cartfile*:
 
 ```bash
-# Swift4.2 or later
+# Swift5.0
+github "sgr-ksmt/Alertift" ~> 4.1
+
+# Swift4.2
 github "sgr-ksmt/Alertift" ~> 4.0
 
 # Swift4 or 4.1
@@ -61,8 +64,10 @@ github "sgr-ksmt/Alertift" ~> 2.0
 it, simply add the following line to your Podfile:
 
 ```ruby
-# Swift4.2 or later
-pod 'Alertift', '~> 4.0'
+# Swift5.0 or later
+pod 'Alertift', '~> 4.1'
+# Swift4.2
+pod 'Alertift', '4.0'
 
 # Swift4 or 4.1
 pod 'Alertift', '~> 3.0'