diff --git a/Package.swift b/Package.swift
index 6e12dcf2..38fc701b 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,14 +1,14 @@
-// swift-tools-version:5.3
+// swift-tools-version:5.9
 // The swift-tools-version declares the minimum version of Swift required to build this package.
 
 import PackageDescription
 
 var platforms: [SupportedPlatform] {
-    #if compiler(<5.3)
-        return [.iOS(.v8)]
+    #if compiler(<5.9)
+        return [.iOS(.v11)]
     #else
-        // Xcode 12 (which ships with Swift 5.3) drops support for iOS 8
-        return[.iOS(.v9)]
+        // Xcode 15.2 (which ships with Swift 5.9) drops support for iOS 11
+        return[.iOS(.v12)]
     #endif
 }