diff --git a/.plugin-data b/.plugin-data
index 1b2e2d5..bf853ba 100644
--- a/.plugin-data
+++ b/.plugin-data
@@ -1,4 +1,4 @@
 {
-	"version": "1.1.1",
+	"version": "1.2.0",
 	"slug": "multisite-shared-blocks"
 }
\ No newline at end of file
diff --git a/includes/Blocks/SharedBlock.php b/includes/Blocks/SharedBlock.php
index 7a4dcca..a364006 100644
--- a/includes/Blocks/SharedBlock.php
+++ b/includes/Blocks/SharedBlock.php
@@ -288,7 +288,20 @@ private function get_rendered_block( int $site_id, int $post_id, string $block_i
 			sprintf( '/multisite-shared-blocks/v1/renderer/%d/%s', $post_id, $block_id )
 		);
 
-		$response = wp_safe_remote_get( $rest_url );
+		// Prepare request arguments
+		$request_args = [];
+		// Add authentication headers if in non-production environment and credentials are defined
+		if ( defined( 'MULTISITE_BLOCKS_AUTH_USER' ) && defined( 'MULTISITE_BLOCKS_AUTH_PWD' ) && ! empty( MULTISITE_BLOCKS_AUTH_USER ) && ! empty( MULTISITE_BLOCKS_AUTH_PWD ) ) {
+			$request_args = [
+				'headers' => [
+					'Authorization' => 'Basic ' . base64_encode( MULTISITE_BLOCKS_AUTH_USER . ':' . MULTISITE_BLOCKS_AUTH_PWD ), // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_encode
+				],
+			];
+		}
+
+		// Make the request with authentication if available
+		$response = wp_safe_remote_get( $rest_url, $request_args );
+
 		if ( is_wp_error( $response ) || 200 !== (int) wp_remote_retrieve_response_code( $response ) ) {
 			return $block_data;
 		}
diff --git a/multisite-shared-blocks.php b/multisite-shared-blocks.php
index 46fc744..96ba321 100644
--- a/multisite-shared-blocks.php
+++ b/multisite-shared-blocks.php
@@ -3,7 +3,7 @@
  * Plugin Name: Multisite Shared Blocks
  * Plugin URI: https://github.com/BeAPI/multisite-shared-blocks
  * Description: Share blocks between network's sites.
- * Version: 1.1.1
+ * Version: 1.2.0
  * Requires at least: 5.9
  * Requires PHP: 7.2
  * Author: Be API Technical team
@@ -31,7 +31,7 @@
 }
 
 // Plugin constants
-define( 'MULTISITE_SHARED_BLOCKS_VERSION', '1.1.1' );
+define( 'MULTISITE_SHARED_BLOCKS_VERSION', '1.2.0' );
 define( 'MULTISITE_SHARED_BLOCKS_CACHE_VERSION', '1' );
 define( 'MULTISITE_SHARED_BLOCKS_VIEWS_FOLDER_NAME', 'multisite-shared-blocks' );
 
diff --git a/package-lock.json b/package-lock.json
index df00944..bd1c879 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "multisite-shared-blocks",
-  "version": "1.1.1",
+  "version": "1.2.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "multisite-shared-blocks",
-      "version": "1.1.1",
+      "version": "1.2.0",
       "license": "GPL-2.0-or-later",
       "dependencies": {
         "react-infinite-scroll-component": "^6.1.0",
diff --git a/package.json b/package.json
index 6d5f02e..26646d4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "multisite-shared-blocks",
-  "version": "1.1.1",
+  "version": "1.2.0",
   "description": "Share blocks between network's sites.",
   "main": "build/index.js",
   "scripts": {
diff --git a/readme.txt b/readme.txt
index 8048f40..6538bf3 100644
--- a/readme.txt
+++ b/readme.txt
@@ -3,7 +3,7 @@ Contributors: beapi, momo360modena, rahe, asadowski10, petitphp
 Tags: network, multisite, block, share, gutenberg
 Requires at least: 5.9
 Tested up to: 6.4
-Stable tag: 1.1.1
+Stable tag: 1.2.0
 Requires PHP: 7.2
 License: GPL v2 or later
 License URI: https://www.gnu.org/licenses/gpl-2.0.html
@@ -26,6 +26,9 @@ This plugin allow contributors to share blocks from posts on the network. Other
 
 == Changelog ==
 
+= 1.2.0 - 2025-09-12 =
+* Add Basic authentication support for multisite blocks requests
+
 = 1.1.1 - 2024-03-29 =
 * Load translations for editor script
 
diff --git a/src/blocks/shared-block/block.json b/src/blocks/shared-block/block.json
index 6487496..dc0efd6 100644
--- a/src/blocks/shared-block/block.json
+++ b/src/blocks/shared-block/block.json
@@ -2,7 +2,7 @@
 	"$schema": "https://schemas.wp.org/trunk/block.json",
 	"apiVersion": 2,
 	"name": "multisite-shared-blocks/shared-block",
-	"version": "1.1.1",
+	"version": "1.2.0",
 	"title": "Shared Block",
 	"category": "design",
 	"description": "",