diff --git a/README.md b/README.md
index fd317d57..33e5490e 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ RichEditorView
 
 RichEditorView is a simple, modular, drop-in UIView subclass for Rich Text Editing.
 
-Written in Swift 4
+Written in Swift 4.2
 
 Supports iOS 8+ through Cocoapods or Carthage.