diff --git a/EFQRCode.podspec b/EFQRCode.podspec
index 29d6fef9..3e657db6 100644
--- a/EFQRCode.podspec
+++ b/EFQRCode.podspec
@@ -17,27 +17,16 @@ Pod::Spec.new do |s|
 	s.ios.deployment_target = '9.0'
 	s.osx.deployment_target = '10.10'
 	s.tvos.deployment_target = '9.0'
+	s.watchos.deployment_target = '2.0'
 
 	s.swift_version = '5.0'
 	s.requires_arc = true
+
 	s.frameworks = 'ImageIO', 'CoreGraphics', 'Foundation'
 	s.ios.framework = 'CoreImage'
 	s.osx.framework = 'CoreImage'
 	s.tvos.framework = 'CoreImage'
+	s.watchos.dependency 'swift_qrcodejs', '~> 1.2.0'
 
-	s.default_subspec = 'Core'
-
-	s.subspec 'Core' do |core|
-		core.source_files = 'Source/**/*.{h,swift}'
-	end
-
-	s.subspec 'watchOS' do |watchos|
-		watchos.ios.deployment_target = '9.0'
-		watchos.osx.deployment_target = '10.10'
-		watchos.tvos.deployment_target = '9.0'
-		watchos.watchos.deployment_target = '2.0'
-
-		watchos.source_files = 'Source/**/*.{h,swift}'
-		watchos.dependency 'swift_qrcodejs', '~> 1.2.0'
-	end
+	s.source_files = 'Source/**/*.{h,swift}'
 end
diff --git a/Examples/iOS/iOS Example.xcodeproj/xcshareddata/xcschemes/watchOS Example.xcscheme b/Examples/iOS/iOS Example.xcodeproj/xcshareddata/xcschemes/watchOS Example.xcscheme
index 0508b11f..ead71233 100644
--- a/Examples/iOS/iOS Example.xcodeproj/xcshareddata/xcschemes/watchOS Example.xcscheme	
+++ b/Examples/iOS/iOS Example.xcodeproj/xcshareddata/xcschemes/watchOS Example.xcscheme	
@@ -63,10 +63,8 @@
       debugDocumentVersioning = "YES"
       debugServiceExtension = "internal"
       allowLocationSimulation = "YES">
-      <RemoteRunnable
-         runnableDebuggingMode = "2"
-         BundleIdentifier = "com.apple.Carousel"
-         RemotePath = "/EFQRCode">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
          <BuildableReference
             BuildableIdentifier = "primary"
             BlueprintIdentifier = "5282BCE21FF3AD9000DFB36B"
@@ -74,7 +72,7 @@
             BlueprintName = "watchOS Example"
             ReferencedContainer = "container:iOS Example.xcodeproj">
          </BuildableReference>
-      </RemoteRunnable>
+      </BuildableProductRunnable>
    </LaunchAction>
    <ProfileAction
       buildConfiguration = "Release"
@@ -82,10 +80,8 @@
       savedToolIdentifier = ""
       useCustomWorkingDirectory = "NO"
       debugDocumentVersioning = "YES">
-      <RemoteRunnable
-         runnableDebuggingMode = "2"
-         BundleIdentifier = "com.apple.Carousel"
-         RemotePath = "/EFQRCode">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
          <BuildableReference
             BuildableIdentifier = "primary"
             BlueprintIdentifier = "5282BCE21FF3AD9000DFB36B"
@@ -93,16 +89,7 @@
             BlueprintName = "watchOS Example"
             ReferencedContainer = "container:iOS Example.xcodeproj">
          </BuildableReference>
-      </RemoteRunnable>
-      <MacroExpansion>
-         <BuildableReference
-            BuildableIdentifier = "primary"
-            BlueprintIdentifier = "5282BCE21FF3AD9000DFB36B"
-            BuildableName = "watchOS Example.app"
-            BlueprintName = "watchOS Example"
-            ReferencedContainer = "container:iOS Example.xcodeproj">
-         </BuildableReference>
-      </MacroExpansion>
+      </BuildableProductRunnable>
    </ProfileAction>
    <AnalyzeAction
       buildConfiguration = "Debug">
diff --git a/Package@swift-5.3.swift b/Package@swift-5.3.swift
new file mode 100644
index 00000000..f739cb97
--- /dev/null
+++ b/Package@swift-5.3.swift
@@ -0,0 +1,48 @@
+// swift-tools-version:5.3
+//
+//  Package.swift
+//  EFQRCode
+//
+//  Created by EyreFree on 2017/4/1.
+//
+//  Copyright (c) 2017 EyreFree <eyrefree@eyrefree.org>
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in
+//  all copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+//  THE SOFTWARE.
+
+import PackageDescription
+
+let package = Package(
+    name: "EFQRCode",
+    products: [
+        .library(name: "EFQRCode", targets: ["EFQRCode"])
+    ],
+    dependencies: [
+        .package(url: "https://github.com/ApolloZhu/swift_qrcodejs.git",
+                 .upToNextMinor(from: "1.2.0"))
+    ],
+    targets: [
+        .target(name: "EFQRCode",
+                dependencies: [
+                    .product(name: "swift_qrcodejs", package: "swift_qrcodejs",
+                             condition: .when(platforms: [.watchOS])),
+                ],
+                path: "Source")
+    ],
+    swiftLanguageVersions: [.v5]
+)