diff --git a/Example/Popover.xcodeproj/project.pbxproj b/Example/Popover.xcodeproj/project.pbxproj
index 1a78b1c..7a397c0 100644
--- a/Example/Popover.xcodeproj/project.pbxproj
+++ b/Example/Popover.xcodeproj/project.pbxproj
@@ -195,13 +195,13 @@
 				TargetAttributes = {
 					01A491C91E222AFB007E15FA = {
 						CreatedOnToolsVersion = 8.2.1;
-						LastSwiftMigration = 0900;
+						LastSwiftMigration = 1010;
 						ProvisioningStyle = Automatic;
 						TestTargetID = 607FACCF1AFB9204008FA782;
 					};
 					607FACCF1AFB9204008FA782 = {
 						CreatedOnToolsVersion = 6.3.1;
-						LastSwiftMigration = 0900;
+						LastSwiftMigration = 1010;
 					};
 				};
 			};
@@ -344,8 +344,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = corin8823.PopoverExampleTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
-				SWIFT_SWIFT3_OBJC_INFERENCE = On;
-				SWIFT_VERSION = 4.0;
+				SWIFT_VERSION = 4.2;
 				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/PopoverExample.app/PopoverExample";
 			};
 			name = Debug;
@@ -361,8 +360,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = corin8823.PopoverExampleTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_SWIFT3_OBJC_INFERENCE = On;
-				SWIFT_VERSION = 4.0;
+				SWIFT_VERSION = 4.2;
 				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/PopoverExample.app/PopoverExample";
 			};
 			name = Release;
@@ -486,8 +484,7 @@
 				MODULE_NAME = ExampleApp;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.cocoapods.demo.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_SWIFT3_OBJC_INFERENCE = Default;
-				SWIFT_VERSION = 4.0;
+				SWIFT_VERSION = 4.2;
 			};
 			name = Debug;
 		};
@@ -507,8 +504,7 @@
 				MODULE_NAME = ExampleApp;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.cocoapods.demo.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_SWIFT3_OBJC_INFERENCE = Default;
-				SWIFT_VERSION = 4.0;
+				SWIFT_VERSION = 4.2;
 			};
 			name = Release;
 		};
diff --git a/Example/Popover/AppDelegate.swift b/Example/Popover/AppDelegate.swift
index 5085876..b04d41d 100644
--- a/Example/Popover/AppDelegate.swift
+++ b/Example/Popover/AppDelegate.swift
@@ -13,7 +13,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
 
   var window: UIWindow?
 
-  func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
+  func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
     // Override point for customization after application launch.
     return true
   }