diff --git a/APNGKit.podspec b/APNGKit.podspec
index 440032d..5ae1eeb 100644
--- a/APNGKit.podspec
+++ b/APNGKit.podspec
@@ -18,9 +18,9 @@ Pod::Spec.new do |s|
   s.authors            = { "onevcat" => "onevcat@gmail.com" }
   s.social_media_url   = "http://twitter.com/onevcat"
 
-  s.ios.deployment_target = "9.0"
-  s.osx.deployment_target = "10.12"
-  s.tvos.deployment_target = "9.0"
+  s.ios.deployment_target = "12.0"
+  s.osx.deployment_target = "10.14"
+  s.tvos.deployment_target = "12.0"
 
   s.source       = { :git => "https://github.com/onevcat/APNGKit.git", :tag => s.version }
   
diff --git a/Package.swift b/Package.swift
index b415fb5..48b12f1 100644
--- a/Package.swift
+++ b/Package.swift
@@ -3,7 +3,7 @@ import PackageDescription
 
 let package = Package(
     name: "APNGKit",
-    platforms: [.macOS(.v10_11), .iOS(.v9), .tvOS(.v9)],
+    platforms: [.macOS(.v10_14), .iOS(.v12), .tvOS(.v12)],
     products: [
         .library(name: "APNGKit", targets: ["APNGKit"])
     ],
diff --git a/Package@swift-5.9.swift b/Package@swift-5.9.swift
index 6616b96..98da358 100644
--- a/Package@swift-5.9.swift
+++ b/Package@swift-5.9.swift
@@ -3,7 +3,7 @@ import PackageDescription
 
 let package = Package(
     name: "APNGKit",
-    platforms: [.macOS(.v10_13), .iOS(.v12), .tvOS(.v12)],
+    platforms: [.macOS(.v10_14), .iOS(.v12), .tvOS(.v12)],
     products: [
         .library(name: "APNGKit", targets: ["APNGKit"])
     ],