diff --git a/Block/Product/RatingSnippet.php b/Block/Product/RatingSnippet.php
index c6227aa..d25023a 100644
--- a/Block/Product/RatingSnippet.php
+++ b/Block/Product/RatingSnippet.php
@@ -14,12 +14,19 @@
 
 class RatingSnippet extends ListProduct
 {
+    // protected $_storeManager = StoreManagerInterface::class;
     protected $_customerSession;
+    protected $reviewsConfig;
+    protected $postDataHelper;
+    protected $layerResolver;
+    protected $categoryRepository;
+    protected $urlHelper;
+    protected $customerSession;
     protected $categoryFactory;
-    //protected $reviewsConfig = Reviews\Helper\Config;
-    // protected $_storeManager = StoreManagerInterface::class;
+    protected $reviewsConfigHelper;
+    protected $storeManager;
     protected $store;
-    protected $reviewsConfig;
+
     /**
      * ListProduct constructor.
      * @param \Magento\Catalog\Block\Product\Context $context
@@ -27,10 +34,11 @@ class RatingSnippet extends ListProduct
      * @param \Magento\Catalog\Model\Layer\Resolver $layerResolver
      * @param \Magento\Catalog\Api\CategoryRepositoryInterface $categoryRepository
      * @param \Magento\Framework\Url\Helper\Data $urlHelper
-     * @param Helper $helper
      * @param array $data
      * @param \Magento\Customer\Model\Session $customerSession
      * @param \Magento\Catalog\Model\CategoryFactory $categoryFactory
+     * @param \Reviewscouk\Reviews\Helper\Config $reviewsConfigHelper
+     * @param \Magento\Store\Model\StoreManagerInterface $storeManager
      */
     public function __construct(
         \Magento\Catalog\Block\Product\Context $context,
@@ -39,10 +47,10 @@ public function __construct(
         \Magento\Catalog\Api\CategoryRepositoryInterface $categoryRepository,
         \Magento\Framework\Url\Helper\Data $urlHelper,
         array $data = [],
-        \Magento\Customer\Model\Session $customerSession = null,
-        \Magento\Catalog\Model\CategoryFactory $categoryFactory = null,
-        ReviewsConfig $reviewsConfigHelper = null,
-        StoreManagerInterface $storeManager = null
+        ?\Magento\Customer\Model\Session $customerSession = null,
+        ?\Magento\Catalog\Model\CategoryFactory $categoryFactory = null,
+        ?ReviewsConfig $reviewsConfigHelper = null,
+        ?StoreManagerInterface $storeManager = null
     ) {
         $this->_customerSession = $customerSession;
         $this->categoryFactory = $categoryFactory;
diff --git a/Block/Richsnippet.php b/Block/Richsnippet.php
index 8652c41..b539cb6 100755
--- a/Block/Richsnippet.php
+++ b/Block/Richsnippet.php
@@ -85,7 +85,7 @@ public function getRichSnippetSource()
         return '<script src="' . $url . '"></script>';
     }
 
-    public function getRichSnippet($sku = null, $product = null)
+    public function getRichSnippet(?array $sku = null, ?array $product = null)
     {
         if (isset($sku) && is_array($sku)) {
             $sku = implode(';', $sku);
diff --git a/Model/Api.php b/Model/Api.php
index dee0a0e..79cca68 100755
--- a/Model/Api.php
+++ b/Model/Api.php
@@ -25,7 +25,7 @@ public function __construct(
         $this->store = $storeManagerInterface->getStore();
     }
 
-    public function apiPost($url, $data, $magento_store_id = null)
+    public function apiPost($url, $data, ?string $magento_store_id = null)
     {
         if ($magento_store_id == null) {
             $magento_store_id = $this->store->getId();
@@ -51,7 +51,7 @@ public function apiPost($url, $data, $magento_store_id = null)
         return $response;
     }
 
-    protected function getApiDomain($magento_store_id = null)
+    protected function getApiDomain(?string $magento_store_id = null)
     {
         return $this->configHelper->getRegion($magento_store_id) == 'US' ? 'api.reviews.io' : 'api.reviews.co.uk';
     }
diff --git a/README.md b/README.md
index f74c094..bafe7a0 100755
--- a/README.md
+++ b/README.md
@@ -7,6 +7,7 @@ You'll need to sign up at [Reviews.co.uk](https://www.reviews.co.uk "Reviews.co.
 
 | Magento Version | Php Version | REVIEWS.io Plugin Version  |
 |-----------------|-------------|----------------------------|
+| >= 2.4.8        | 8.3, 8.4    | reviewscouk/reviews:0.0.67 |
 | >= 2.4.6        | 8.1, 8.2    | reviewscouk/reviews:0.0.66 |
 | >= 2.4.4        | 8.1         | reviewscouk/reviews:0.0.66 |
 | <= 2.4.3        | <= 7.4      | reviewscouk/reviews:0.0.66 |
@@ -18,7 +19,7 @@ You'll need to sign up at [Reviews.co.uk](https://www.reviews.co.uk "Reviews.co.
 2. As this plugin is hosted on [packagist.org](http://packagist.org), you simply use the following to instruct composer to fetch and install the module:
 
     ```bash
-    composer require reviewscouk/reviews:0.0.66
+    composer require reviewscouk/reviews:0.0.67
     ```
 
 3. When this is complete, `cd` to `/bin` and run the following: