diff --git a/Package.swift b/Package.swift
index 707de2f..240d007 100644
--- a/Package.swift
+++ b/Package.swift
@@ -15,7 +15,7 @@ let package = Package(
 let package = Package(
   name: "JWT",
   dependencies: [
-    .Package(url: "https://github.com/krzyzanowskim/CryptoSwift.git", majorVersion: 0, minor: 6),
+    .Package(url: "https://github.com/krzyzanowskim/CryptoSwift.git", majorVersion: 0, minor: 8),
   ],
   exclude: [
     "Sources/JWT/HMACCommonCrypto.swift",
diff --git a/Sources/JWT/CompactJSONEncoder.swift b/Sources/JWT/CompactJSONEncoder.swift
index f759453..b9e3464 100644
--- a/Sources/JWT/CompactJSONEncoder.swift
+++ b/Sources/JWT/CompactJSONEncoder.swift
@@ -1,3 +1,5 @@
+import Foundation
+
 class CompactJSONEncoder: JSONEncoder {
   override func encode<T : Encodable>(_ value: T) throws -> Data {
     return try encodeString(value).data(using: .ascii) ?? Data()