diff --git a/CHANGELOG.md b/CHANGELOG.md
index b6c924a2..6e2ebf23 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [3.7.4] - 15 December 2023
+### Fixed
+- Fix PHP 7.4 compat issues
+
 ## [3.7.3] - 15 December 2023
 ### Fixed
 - Livewire: Multiple root elements detected
diff --git a/MageWire/Checkout.php b/MageWire/Checkout.php
index 87710811..0e95b35f 100644
--- a/MageWire/Checkout.php
+++ b/MageWire/Checkout.php
@@ -14,13 +14,21 @@ class Checkout extends Component
         'shipping_method_selected' => 'triggerShippingMethod',
         'payment_method_selected' => 'triggerPaymentMethod',
     ];
+    private CheckoutSession $checkoutSession;
+    private BeginCheckout $beginCheckout;
+    private AddShippingInfo $addShippingInfo;
+    private AddPaymentInfo $addPaymentInfo;
 
     public function __construct(
-        private readonly CheckoutSession $checkoutSession,
-        private readonly BeginCheckout $beginCheckout,
-        private readonly AddShippingInfo $addShippingInfo,
-        private readonly AddPaymentInfo $addPaymentInfo,
+        CheckoutSession $checkoutSession,
+        BeginCheckout $beginCheckout,
+        AddShippingInfo $addShippingInfo,
+        AddPaymentInfo $addPaymentInfo
     ) {
+        $this->checkoutSession = $checkoutSession;
+        $this->beginCheckout = $beginCheckout;
+        $this->addShippingInfo = $addShippingInfo;
+        $this->addPaymentInfo = $addPaymentInfo;
     }
 
     public function triggerBeginCheckout()
diff --git a/Util/GetCategoryFromProduct.php b/Util/GetCategoryFromProduct.php
index de6ff979..e58377b4 100644
--- a/Util/GetCategoryFromProduct.php
+++ b/Util/GetCategoryFromProduct.php
@@ -57,11 +57,11 @@ public function get(Product $product): CategoryInterface
     }
 
     /**
-     * @param Product $product
+     * @param ProductInterface $product
      * @return CategoryInterface[]
      * @throws NoSuchEntityException
      */
-    public function getAll(Product|ProductInterface $product): array
+    public function getAll(ProductInterface $product): array
     {
         $categoryIds = $product->getCategoryIds();
 
diff --git a/composer.json b/composer.json
index e5d7c40c..5f9058a0 100644
--- a/composer.json
+++ b/composer.json
@@ -1,6 +1,6 @@
 {
   "name": "yireo/magento2-googletagmanager2",
-  "version": "3.7.3",
+  "version": "3.7.4",
   "license": "OSL-3.0",
   "type": "magento2-module",
   "homepage": "https://www.yireo.com/software/magento-extensions/googletagmanager2",