diff --git a/Package.swift b/Package.swift
index 4df2333..4372f3c 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,5 +1,13 @@
+// swift-tools-version:5.1
+// The swift-tools-version declares the minimum version of Swift required to build this package.
 import PackageDescription
 
 let package = Package(
-  name: "Arrow"
+    name: "Arrow",
+    platforms: [.iOS(.v8)],
+    products: [.library(name: "Arrow", targets: ["Arrow"])],
+    targets: [
+        .target(name: "Arrow", path: "Source"),
+        .testTarget(name: "ArrowTests", dependencies: ["Arrow"], path: "ArrowTests")
+    ]
 )
diff --git a/Source/Extensions.swift b/Source/Extensions.swift
index e56d2c8..56cb9b6 100644
--- a/Source/Extensions.swift
+++ b/Source/Extensions.swift
@@ -7,6 +7,7 @@
 //
 
 import Foundation
+import CoreGraphics
 
 public protocol ArrowInitializable {
     init?(_ json: JSON?)