diff --git a/Package.swift b/Package.swift
index fd64ee7e..c7e08a94 100644
--- a/Package.swift
+++ b/Package.swift
@@ -6,7 +6,10 @@ import PackageDescription
 let package = Package(
     name: "yoga",
     platforms: [
-        .iOS(.v11),
+        .iOS(.v9),
+        .macOS(.v10_10),
+        .watchOS(.v2),
+        .tvOS(.v10),
     ],
     products: [
         .library(