diff --git a/HydraAsync.podspec b/HydraAsync.podspec
index 8c28a85..6efbd83 100644
--- a/HydraAsync.podspec
+++ b/HydraAsync.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |spec|
   spec.name = 'HydraAsync'
-  spec.version = '2.0.2'
+  spec.version = '2.0.3'
   spec.summary = 'Promises & Await: Write better async in Swift'
   spec.homepage = 'https://github.com/malcommac/Hydra'
   spec.license = { :type => 'MIT', :file => 'LICENSE' }
@@ -15,5 +15,5 @@ Pod::Spec.new do |spec|
   spec.requires_arc = true
   spec.module_name = 'Hydra'
   spec.frameworks  = "Foundation"
-  spec.swift_version = "5.0"
+  spec.swift_versions = ['4.0', '4.1', '4.2', '5.0', '5.1']
 end
diff --git a/Package.swift b/Package.swift
index 6d6243f..02e82be 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,4 +1,4 @@
-// swift-tools-version:4.0
+// swift-tools-version:5.1
 import PackageDescription
 
 let package = Package(
@@ -9,6 +9,5 @@ let package = Package(
     targets: [
         .target(name: "Hydra", dependencies: []),
         .testTarget(name: "HydraTests", dependencies: ["Hydra"])
-    ],
-    swiftLanguageVersions: [4]
+    ]
 )