diff --git a/CollageView.podspec b/CollageView.podspec
index 6263979..d8ef56a 100644
--- a/CollageView.podspec
+++ b/CollageView.podspec
@@ -3,7 +3,7 @@ Pod::Spec.new do |s|
   s.version          = '1.0.2'
   s.summary          = "Easy to use and fully customizable CollageView with multiple images inside."
   s.description      = <<-DESC
-  Custom View, collageView implementation with pure swift3. This Library's aim is to make easily photo collage views.
+  Custom View, collageView implementation with pure swift4. This Library's aim is to make easily photo collage views.
                        DESC
   s.homepage         = "https://github.com/ahmetkgunay/CollageView"
   s.license          = 'MIT'
diff --git a/README.md b/README.md
index 70dbd21..2f0a9e7 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 [![License](https://img.shields.io/cocoapods/l/CollageView.svg?style=flat)](http://cocoapods.org/pods/CollageView)
 [![Platform](https://img.shields.io/cocoapods/p/CollageView.svg?style=flat)](http://cocoapods.org/pods/CollageView)
 
-Custom View, collageView implementation with pure swift3.
+Custom View, collageView implementation with pure swift4.
 
 This Library's aim is to make easily photo collage views.
 
diff --git a/swift-version b/swift-version
index 9f55b2c..5186d07 100644
--- a/swift-version
+++ b/swift-version
@@ -1 +1 @@
-3.0
+4.0