diff --git a/.gitignore b/.gitignore
index 51e0d31..94976fa 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 # Linked sources
 wp-core
 wp-plugins
+tpp
 
 # Editor swap files
 *.*swp
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 55b456a..ca82f43 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,25 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.1.3] - 2024-12-31
+
+### Added
+
+- WooCommerce HPOS (High-Performance Order Storage) compatibility declaration
+- Prevents duplicate price calculations to avoid conflicts with other pricing plugins
+
+### Fixed
+
+- WooCommerce compatibility warnings with Analytics and other WooCommerce extensions
+- Price calculation conflicts with third-party pricing plugins
+
+### Technical
+
+- Added `before_woocommerce_init` hook to declare HPOS compatibility
+- Implemented static flag in `Cart_Handler::calculate_cart_item_price()` to prevent multiple executions
+- Added `composable_price_calculated` flag to cart items to prevent re-calculation by other plugins
+- Ensures composable products work with WooCommerce's modern order storage system
+
 ## [1.1.2] - 2024-12-31
 
 ### Fixed
diff --git a/includes/Cart_Handler.php b/includes/Cart_Handler.php
index ad6e974..a62c042 100644
--- a/includes/Cart_Handler.php
+++ b/includes/Cart_Handler.php
@@ -185,14 +185,25 @@ class Cart_Handler {
             return;
         }
 
+        // Use static flag to prevent multiple executions
+        static $already_calculated = false;
+        if ($already_calculated) {
+            return;
+        }
+
         foreach ($cart->get_cart() as $cart_item_key => $cart_item) {
             if (isset($cart_item['data']) && $cart_item['data']->get_type() === 'composable') {
-                if (isset($cart_item['composable_products'])) {
+                if (isset($cart_item['composable_products']) && !isset($cart_item['composable_price_calculated'])) {
                     $product = $cart_item['data'];
                     $price = $product->calculate_composed_price($cart_item['composable_products']);
                     $cart_item['data']->set_price($price);
+
+                    // Mark as calculated to prevent re-calculation by other plugins
+                    $cart->cart_contents[$cart_item_key]['composable_price_calculated'] = true;
                 }
             }
         }
+
+        $already_calculated = true;
     }
 }
diff --git a/wc-composable-product.php b/wc-composable-product.php
index b643d70..1599c4e 100644
--- a/wc-composable-product.php
+++ b/wc-composable-product.php
@@ -3,7 +3,7 @@
  * Plugin Name: WooCommerce Composable Products
  * Plugin URI: https://github.com/magdev/wc-composable-product
  * Description: Create composable products where customers select a limited number of items from a configurable set
- * Version: 1.1.2
+ * Version: 1.1.3
  * Author: Marco Graetsch
  * Author URI: https://example.com
  * License: GPL v3 or later
@@ -19,7 +19,7 @@
 defined('ABSPATH') || exit;
 
 // Define plugin constants
-define('WC_COMPOSABLE_PRODUCT_VERSION', '1.1.2');
+define('WC_COMPOSABLE_PRODUCT_VERSION', '1.1.3');
 define('WC_COMPOSABLE_PRODUCT_FILE', __FILE__);
 define('WC_COMPOSABLE_PRODUCT_PATH', plugin_dir_path(__FILE__));
 define('WC_COMPOSABLE_PRODUCT_URL', plugin_dir_url(__FILE__));
@@ -64,6 +64,15 @@ function wc_composable_product_init() {
 // Use woocommerce_init to ensure all WooCommerce classes including settings are loaded
 add_action('woocommerce_init', 'wc_composable_product_init');
 
+/**
+ * Declare HPOS compatibility
+ */
+add_action('before_woocommerce_init', function() {
+    if (class_exists(\Automattic\WooCommerce\Utilities\FeaturesUtil::class)) {
+        \Automattic\WooCommerce\Utilities\FeaturesUtil::declare_compatibility('custom_order_tables', __FILE__, true);
+    }
+});
+
 /**
  * Activation hook
  */