diff --git a/Sources/ShopifyCheckoutSheetKit/CheckoutViewController.swift b/Sources/ShopifyCheckoutSheetKit/CheckoutViewController.swift
index fbc730c7..9ff4e84b 100644
--- a/Sources/ShopifyCheckoutSheetKit/CheckoutViewController.swift
+++ b/Sources/ShopifyCheckoutSheetKit/CheckoutViewController.swift
@@ -25,7 +25,7 @@ import UIKit
 import SwiftUI
 
 public class CheckoutViewController: UINavigationController {
-	public init(checkout url: URL, delegate: CheckoutDelegate) {
+	public init(checkout url: URL, delegate: CheckoutDelegate? = nil) {
 		let rootViewController = CheckoutWebViewController(checkoutURL: url, delegate: delegate)
 		rootViewController.notifyPresented()
 		super.init(rootViewController: rootViewController)
@@ -52,7 +52,7 @@ extension CheckoutViewController {
 		}
 
 		public func makeUIViewController(context: Self.Context) -> CheckoutViewController {
-			return CheckoutViewController(checkout: checkoutURL!, delegate: delegate!)
+			return CheckoutViewController(checkout: checkoutURL!, delegate: delegate)
 		}
 
 		public func updateUIViewController(_ uiViewController: CheckoutViewController, context: Self.Context) {
diff --git a/Sources/ShopifyCheckoutSheetKit/CheckoutWebViewController.swift b/Sources/ShopifyCheckoutSheetKit/CheckoutWebViewController.swift
index ef41283a..3d1bed14 100644
--- a/Sources/ShopifyCheckoutSheetKit/CheckoutWebViewController.swift
+++ b/Sources/ShopifyCheckoutSheetKit/CheckoutWebViewController.swift
@@ -63,7 +63,7 @@ class CheckoutWebViewController: UIViewController, UIAdaptivePresentationControl
 
 	// MARK: Properties
 
-	var delegate: CheckoutDelegate
+	var delegate: CheckoutDelegate?
 
 	internal var checkoutView: CheckoutWebView
 
@@ -87,7 +87,7 @@ class CheckoutWebViewController: UIViewController, UIAdaptivePresentationControl
 
 	// MARK: Initializers
 
-	public init(checkoutURL url: URL, delegate: CheckoutDelegate) {
+	public init(checkoutURL url: URL, delegate: CheckoutDelegate? = nil) {
 		self.checkoutURL = url
 		self.delegate = delegate
 
@@ -189,7 +189,7 @@ class CheckoutWebViewController: UIViewController, UIAdaptivePresentationControl
 			CheckoutWebView.invalidate()
 		}
 
-		delegate.checkoutDidCancel()
+		delegate?.checkoutDidCancel()
 	}
 }
 
@@ -208,23 +208,23 @@ extension CheckoutWebViewController: CheckoutWebViewDelegate {
 	func checkoutViewDidCompleteCheckout(event: CheckoutCompletedEvent) {
 		ConfettiCannon.fire(in: view)
 		CheckoutWebView.invalidate()
-		delegate.checkoutDidComplete(event: event)
+		delegate?.checkoutDidComplete(event: event)
 	}
 
 	func checkoutViewDidFailWithError(error: CheckoutError) {
 		CheckoutWebView.invalidate()
 
-		let shouldAttemptRecovery = delegate.shouldRecoverFromError(error: error)
+		let shouldAttemptRecovery = delegate?.shouldRecoverFromError(error: error) ?? false
 
 		if shouldAttemptRecovery {
 			self.presentFallbackViewController(url: self.checkoutURL)
 		} else {
-			delegate.checkoutDidFail(error: error)
+			delegate?.checkoutDidFail(error: error)
 		}
 	}
 
 	func checkoutViewDidClickLink(url: URL) {
-		delegate.checkoutDidClickLink(url: url)
+		delegate?.checkoutDidClickLink(url: url)
 	}
 
 	func checkoutViewDidToggleModal(modalVisible: Bool) {
@@ -236,7 +236,7 @@ extension CheckoutWebViewController: CheckoutWebViewDelegate {
 	}
 
 	func checkoutViewDidEmitWebPixelEvent(event: PixelEvent) {
-		delegate.checkoutDidEmitWebPixelEvent(event: event)
+		delegate?.checkoutDidEmitWebPixelEvent(event: event)
 	}
 
 	private func isErrorRecoverable(error: CheckoutError) -> Bool {
diff --git a/Sources/ShopifyCheckoutSheetKit/ShopifyCheckoutSheetKit.swift b/Sources/ShopifyCheckoutSheetKit/ShopifyCheckoutSheetKit.swift
index 4d84b872..a77afc5e 100644
--- a/Sources/ShopifyCheckoutSheetKit/ShopifyCheckoutSheetKit.swift
+++ b/Sources/ShopifyCheckoutSheetKit/ShopifyCheckoutSheetKit.swift
@@ -55,7 +55,7 @@ public func preload(checkout url: URL) {
 
 /// Presents the checkout from a given `UIViewController`.
 @discardableResult
-public func present(checkout url: URL, from: UIViewController, delegate: CheckoutDelegate) -> CheckoutViewController {
+public func present(checkout url: URL, from: UIViewController, delegate: CheckoutDelegate?) -> CheckoutViewController {
 	let viewController = CheckoutViewController(checkout: url, delegate: delegate)
 	from.present(viewController, animated: true)
 	return viewController