diff --git a/Package.swift b/Package.swift
index 2b4f962..bcb4c74 100644
--- a/Package.swift
+++ b/Package.swift
@@ -7,7 +7,7 @@ import PackageDescription
 let package = Package(
     name: "ChessKitEngine",
     platforms: [
-        .iOS(.v16),
+        .iOS(.v13),
         .watchOS(.v9),
         .macOS(.v13),
         .tvOS(.v16)