diff --git a/Example.xcodeproj/project.pbxproj b/Example.xcodeproj/project.pbxproj
index 9fa81a5..da6a441 100644
--- a/Example.xcodeproj/project.pbxproj
+++ b/Example.xcodeproj/project.pbxproj
@@ -515,6 +515,7 @@
 				PRODUCT_NAME = StatefulViewController;
 				SKIP_INSTALL = YES;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
@@ -539,6 +540,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = com.aschuch.StatefulViewController;
 				PRODUCT_NAME = StatefulViewController;
 				SKIP_INSTALL = YES;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
@@ -558,6 +560,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.aschuch.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
 				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/Example.app/Example";
 			};
 			name = Debug;
@@ -572,6 +575,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.aschuch.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
 				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/Example.app/Example";
 			};
 			name = Release;
@@ -671,6 +675,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.aschuch.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
 			};
 			name = Debug;
 		};
@@ -682,6 +687,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.aschuch.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 5.0;
 			};
 			name = Release;
 		};
@@ -703,6 +709,7 @@
 				PRODUCT_NAME = StatefulViewController;
 				SDKROOT = appletvos;
 				SKIP_INSTALL = YES;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = 3;
 				TVOS_DEPLOYMENT_TARGET = 9.0;
 				VERSIONING_SYSTEM = "apple-generic";
@@ -729,6 +736,7 @@
 				PRODUCT_NAME = StatefulViewController;
 				SDKROOT = appletvos;
 				SKIP_INSTALL = YES;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = 3;
 				TVOS_DEPLOYMENT_TARGET = 9.0;
 				VERSIONING_SYSTEM = "apple-generic";
diff --git a/Example/AppDelegate.swift b/Example/AppDelegate.swift
index f1eb6df..9320d87 100644
--- a/Example/AppDelegate.swift
+++ b/Example/AppDelegate.swift
@@ -13,7 +13,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
                             
 	var window: UIWindow?
 
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]? = nil) -> Bool {
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? = nil) -> Bool {
         // Override point for customization after application launch.
         return true
     }
diff --git a/Example/CollectionViewController.swift b/Example/CollectionViewController.swift
index fd85a51..c83a76d 100644
--- a/Example/CollectionViewController.swift
+++ b/Example/CollectionViewController.swift
@@ -36,7 +36,7 @@ class CollectionViewController: UICollectionViewController, StatefulViewControll
         refresh()
     }
 
-    func refresh() {
+    @objc func refresh() {
         if (lastState == .loading) { return }
 
         startLoading {
diff --git a/Example/PlaceholderViews/BasicPlaceholderView.swift b/Example/PlaceholderViews/BasicPlaceholderView.swift
index 1ec110d..e5c5440 100644
--- a/Example/PlaceholderViews/BasicPlaceholderView.swift
+++ b/Example/PlaceholderViews/BasicPlaceholderView.swift
@@ -33,7 +33,7 @@ class BasicPlaceholderView: UIView {
         let vConstraints = NSLayoutConstraint.constraints(withVisualFormat: "|-(>=20)-[centerView]-(>=20)-|", options: .alignAllCenterX, metrics: nil, views: ["centerView": centerView])
         let hConstraint = NSLayoutConstraint(item: centerView, attribute: .centerY, relatedBy: .equal, toItem: self, attribute: .centerY, multiplier: 1.0, constant: 0.0)
         let centerConstraint = NSLayoutConstraint(item: centerView, attribute: .centerX, relatedBy: .equal, toItem: self, attribute: .centerX, multiplier: 1.0, constant: 0.0)
-        centerConstraint.priority = 750
+        centerConstraint.priority = UILayoutPriority(rawValue: 750)
 
         addConstraints(vConstraints)
         addConstraint(hConstraint)
diff --git a/Example/PlaceholderViews/ErrorView.swift b/Example/PlaceholderViews/ErrorView.swift
index 3ac5a6e..8c27403 100644
--- a/Example/PlaceholderViews/ErrorView.swift
+++ b/Example/PlaceholderViews/ErrorView.swift
@@ -30,7 +30,7 @@ class ErrorView: BasicPlaceholderView {
 		detailTextLabel.text = "Tap to reload"
         detailTextLabel.numberOfLines = 0
         detailTextLabel.textAlignment = .center
-		let fontDescriptor = UIFontDescriptor.preferredFontDescriptor(withTextStyle: UIFontTextStyle.footnote)
+        let fontDescriptor = UIFontDescriptor.preferredFontDescriptor(withTextStyle: UIFont.TextStyle.footnote)
 		detailTextLabel.font = UIFont(descriptor: fontDescriptor, size: 0)
 		detailTextLabel.textAlignment = .center
 		detailTextLabel.textColor = UIColor.gray
diff --git a/Example/PlaceholderViews/LoadingView.swift b/Example/PlaceholderViews/LoadingView.swift
index 705502c..94de137 100644
--- a/Example/PlaceholderViews/LoadingView.swift
+++ b/Example/PlaceholderViews/LoadingView.swift
@@ -20,7 +20,7 @@ class LoadingView: BasicPlaceholderView, StatefulPlaceholderView {
 		label.translatesAutoresizingMaskIntoConstraints = false
 		centerView.addSubview(label)
 		
-		let activityIndicator = UIActivityIndicatorView(activityIndicatorStyle: .gray)
+        let activityIndicator = UIActivityIndicatorView(style: .gray)
 		activityIndicator.startAnimating()
 		activityIndicator.translatesAutoresizingMaskIntoConstraints = false
 		centerView.addSubview(activityIndicator)
diff --git a/Example/TableViewController.swift b/Example/TableViewController.swift
index 2f46c43..d47870a 100644
--- a/Example/TableViewController.swift
+++ b/Example/TableViewController.swift
@@ -34,7 +34,7 @@ class TableViewController: UITableViewController, StatefulViewController {
         refresh()
     }
 
-    func refresh() {
+    @objc func refresh() {
         if (lastState == .loading) { return }
 
         startLoading {
diff --git a/Example/ViewController.swift b/Example/ViewController.swift
index bfc7bf3..4bd7f74 100644
--- a/Example/ViewController.swift
+++ b/Example/ViewController.swift
@@ -36,7 +36,7 @@ class ViewController: UIViewController, StatefulViewController {
         refresh()
     }
     
-    func refresh() {
+    @objc func refresh() {
         if (lastState == .loading) { return }
         
         startLoading {