diff --git a/Swift/admanager/AdManagerAppOpenExample/AdManagerAppOpenExample/AppDelegate.swift b/Swift/admanager/AdManagerAppOpenExample/AdManagerAppOpenExample/AppDelegate.swift
index 9febea54..d7dc68c7 100644
--- a/Swift/admanager/AdManagerAppOpenExample/AdManagerAppOpenExample/AppDelegate.swift
+++ b/Swift/admanager/AdManagerAppOpenExample/AdManagerAppOpenExample/AppDelegate.swift
@@ -16,7 +16,7 @@
 
 import UIKit
 
-@UIApplicationMain
+@main
 class AppDelegate: UIResponder, UIApplicationDelegate {
 
   var window: UIWindow?
diff --git a/Swift/admanager/AdManagerBannerExample/AdManagerBannerExample/AppDelegate.swift b/Swift/admanager/AdManagerBannerExample/AdManagerBannerExample/AppDelegate.swift
index e302f7db..884ae80c 100644
--- a/Swift/admanager/AdManagerBannerExample/AdManagerBannerExample/AppDelegate.swift
+++ b/Swift/admanager/AdManagerBannerExample/AdManagerBannerExample/AppDelegate.swift
@@ -17,7 +17,7 @@
 import GoogleMobileAds
 import UIKit
 
-@UIApplicationMain
+@main
 class AppDelegate: UIResponder, UIApplicationDelegate {
 
   var window: UIWindow?
diff --git a/Swift/admanager/AdManagerCustomRenderingExample/AdManagerCustomRenderingExample/AppDelegate.swift b/Swift/admanager/AdManagerCustomRenderingExample/AdManagerCustomRenderingExample/AppDelegate.swift
index 7873ca59..2fad5471 100644
--- a/Swift/admanager/AdManagerCustomRenderingExample/AdManagerCustomRenderingExample/AppDelegate.swift
+++ b/Swift/admanager/AdManagerCustomRenderingExample/AdManagerCustomRenderingExample/AppDelegate.swift
@@ -17,7 +17,7 @@
 import GoogleMobileAds
 import UIKit
 
-@UIApplicationMain
+@main
 class AppDelegate: UIResponder, UIApplicationDelegate {
 
   var window: UIWindow?
diff --git a/Swift/admanager/AdManagerInterstitialExample/AdManagerInterstitialExample/AppDelegate.swift b/Swift/admanager/AdManagerInterstitialExample/AdManagerInterstitialExample/AppDelegate.swift
index 9223c8e3..5595aea9 100644
--- a/Swift/admanager/AdManagerInterstitialExample/AdManagerInterstitialExample/AppDelegate.swift
+++ b/Swift/admanager/AdManagerInterstitialExample/AdManagerInterstitialExample/AppDelegate.swift
@@ -17,7 +17,7 @@
 import GoogleMobileAds
 import UIKit
 
-@UIApplicationMain
+@main
 class AppDelegate: UIResponder, UIApplicationDelegate {
 
   var window: UIWindow?
diff --git a/Swift/admanager/AdManagerRewardedInterstitialExample/AdManagerRewardedInterstitialExample/AppDelegate.swift b/Swift/admanager/AdManagerRewardedInterstitialExample/AdManagerRewardedInterstitialExample/AppDelegate.swift
index 279ddb18..f1d2777d 100644
--- a/Swift/admanager/AdManagerRewardedInterstitialExample/AdManagerRewardedInterstitialExample/AppDelegate.swift
+++ b/Swift/admanager/AdManagerRewardedInterstitialExample/AdManagerRewardedInterstitialExample/AppDelegate.swift
@@ -17,7 +17,7 @@
 import GoogleMobileAds
 import UIKit
 
-@UIApplicationMain
+@main
 class AppDelegate: UIResponder, UIApplicationDelegate {
 
   var window: UIWindow?
diff --git a/Swift/admanager/AdManagerRewardedVideoExample/AdManagerRewardedVideoExample/AppDelegate.swift b/Swift/admanager/AdManagerRewardedVideoExample/AdManagerRewardedVideoExample/AppDelegate.swift
index f8b0a8c8..66f8b775 100644
--- a/Swift/admanager/AdManagerRewardedVideoExample/AdManagerRewardedVideoExample/AppDelegate.swift
+++ b/Swift/admanager/AdManagerRewardedVideoExample/AdManagerRewardedVideoExample/AppDelegate.swift
@@ -16,7 +16,7 @@
 
 import UIKit
 
-@UIApplicationMain
+@main
 class AppDelegate: UIResponder, UIApplicationDelegate {
 
   var window: UIWindow?
diff --git a/Swift/admob/AppOpenExample/AppOpenExample/AppDelegate.swift b/Swift/admob/AppOpenExample/AppOpenExample/AppDelegate.swift
index 9febea54..d7dc68c7 100644
--- a/Swift/admob/AppOpenExample/AppOpenExample/AppDelegate.swift
+++ b/Swift/admob/AppOpenExample/AppOpenExample/AppDelegate.swift
@@ -16,7 +16,7 @@
 
 import UIKit
 
-@UIApplicationMain
+@main
 class AppDelegate: UIResponder, UIApplicationDelegate {
 
   var window: UIWindow?
diff --git a/Swift/admob/BannerExample/BannerExample/AppDelegate.swift b/Swift/admob/BannerExample/BannerExample/AppDelegate.swift
index db13d30b..ec4b0a66 100644
--- a/Swift/admob/BannerExample/BannerExample/AppDelegate.swift
+++ b/Swift/admob/BannerExample/BannerExample/AppDelegate.swift
@@ -17,7 +17,7 @@
 import GoogleMobileAds
 import UIKit
 
-@UIApplicationMain
+@main
 class AppDelegate: UIResponder, UIApplicationDelegate {
 
   var window: UIWindow?
diff --git a/Swift/admob/InterstitialExample/InterstitialExample/AppDelegate.swift b/Swift/admob/InterstitialExample/InterstitialExample/AppDelegate.swift
index 9223c8e3..5595aea9 100644
--- a/Swift/admob/InterstitialExample/InterstitialExample/AppDelegate.swift
+++ b/Swift/admob/InterstitialExample/InterstitialExample/AppDelegate.swift
@@ -17,7 +17,7 @@
 import GoogleMobileAds
 import UIKit
 
-@UIApplicationMain
+@main
 class AppDelegate: UIResponder, UIApplicationDelegate {
 
   var window: UIWindow?
diff --git a/Swift/admob/NativeAdvancedExample/NativeAdvancedExample/AppDelegate.swift b/Swift/admob/NativeAdvancedExample/NativeAdvancedExample/AppDelegate.swift
index 7873ca59..2fad5471 100644
--- a/Swift/admob/NativeAdvancedExample/NativeAdvancedExample/AppDelegate.swift
+++ b/Swift/admob/NativeAdvancedExample/NativeAdvancedExample/AppDelegate.swift
@@ -17,7 +17,7 @@
 import GoogleMobileAds
 import UIKit
 
-@UIApplicationMain
+@main
 class AppDelegate: UIResponder, UIApplicationDelegate {
 
   var window: UIWindow?
diff --git a/Swift/admob/RewardedInterstitialExample/RewardedInterstitialExample/AppDelegate.swift b/Swift/admob/RewardedInterstitialExample/RewardedInterstitialExample/AppDelegate.swift
index 8477ec68..4cd4ae21 100644
--- a/Swift/admob/RewardedInterstitialExample/RewardedInterstitialExample/AppDelegate.swift
+++ b/Swift/admob/RewardedInterstitialExample/RewardedInterstitialExample/AppDelegate.swift
@@ -17,7 +17,7 @@
 import GoogleMobileAds
 import UIKit
 
-@UIApplicationMain
+@main
 class AppDelegate: UIResponder, UIApplicationDelegate {
 
   var window: UIWindow?
diff --git a/Swift/admob/RewardedVideoExample/RewardedVideoExample/AppDelegate.swift b/Swift/admob/RewardedVideoExample/RewardedVideoExample/AppDelegate.swift
index 6bd32cc2..0669bfe4 100644
--- a/Swift/admob/RewardedVideoExample/RewardedVideoExample/AppDelegate.swift
+++ b/Swift/admob/RewardedVideoExample/RewardedVideoExample/AppDelegate.swift
@@ -16,7 +16,7 @@
 
 import UIKit
 
-@UIApplicationMain
+@main
 class AppDelegate: UIResponder, UIApplicationDelegate {
 
   var window: UIWindow?
diff --git a/Swift/advanced/APIDemo/APIDemo/AppDelegate.swift b/Swift/advanced/APIDemo/APIDemo/AppDelegate.swift
index cbd651ff..ac3a331f 100644
--- a/Swift/advanced/APIDemo/APIDemo/AppDelegate.swift
+++ b/Swift/advanced/APIDemo/APIDemo/AppDelegate.swift
@@ -16,7 +16,7 @@
 
 import UIKit
 
-@UIApplicationMain
+@main
 class AppDelegate: UIResponder, UIApplicationDelegate {
 
   var window: UIWindow?
diff --git a/Swift/advanced/InlineAdaptiveBannerExample/InlineAdaptiveBannerExample/AppDelegate.swift b/Swift/advanced/InlineAdaptiveBannerExample/InlineAdaptiveBannerExample/AppDelegate.swift
index 85ae6813..ec9b28e3 100644
--- a/Swift/advanced/InlineAdaptiveBannerExample/InlineAdaptiveBannerExample/AppDelegate.swift
+++ b/Swift/advanced/InlineAdaptiveBannerExample/InlineAdaptiveBannerExample/AppDelegate.swift
@@ -17,7 +17,7 @@
 import GoogleMobileAds
 import UIKit
 
-@UIApplicationMain
+@main
 class AppDelegate: UIResponder, UIApplicationDelegate {
 
   var window: UIWindow?