diff --git a/README.md b/README.md
index e640489..a4ef740 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ For convenience, we've included a few public domain source files from [CocoaAsyn
 
 - F53OSC must be compiled with ARC.
 - You must link against `Security.framework` and `CFNetwork.framework`.
-- F53OSC requires Xcode 10.3 or later and a minimum deployment target of macOS 10.9, iOS 8.4, or tvOS 9.0.
+- F53OSC requires Xcode 13.2.1 or later and a minimum deployment target of macOS 11, iOS 14, or tvOS 14.
 
 You can also use CocoaPods to include F53OSC into your project: