diff --git a/php-binance-api.php b/php-binance-api.php
index 58dcd1f..8b2215b 100755
--- a/php-binance-api.php
+++ b/php-binance-api.php
@@ -73,8 +73,8 @@ class API
 
     public $headers = [];
 
-    private $SPOT_ORDER_PREFIX     = "x-HNA2TXFJ";
-	private $CONTRACT_ORDER_PREFIX = "x-Cb7ytekJ";
+    private $SPOT_ORDER_PREFIX     = "x-B3AUXNYV";
+	private $CONTRACT_ORDER_PREFIX = "x-ftGmvgAN";
 
     /**
      * Constructor for the class,
@@ -5674,7 +5674,7 @@ public function futuresReduceMargin(string $symbol, string $amount, $positionSid
      * @property int $weight 5
      *
      * @param string $symbol (optional) market symbol (e.g. ETHUSDT)
-     * @param array  $params      (optional) an array of additional parameters that the API endpoint allows
+     * @param array  $params      (optional) an array of additional parameters that the API endpoint afllows
      * - @param int  $params['recvWindow'] (optional) the time in milliseconds to wait for the response
      * @param string $api_version (optional) API version, "v2" or "v3" (default is v3)
      *
diff --git a/tests/BinanceLiveTests.php b/tests/BinanceLiveTests.php
index 9f4da2f..ab42781 100644
--- a/tests/BinanceLiveTests.php
+++ b/tests/BinanceLiveTests.php
@@ -70,8 +70,8 @@ public function setUp(): void {
     private $quoteId = 'testQuoteId';
     private $timeInForce = 'GTC';
 
-    private $SPOT_ORDER_PREFIX     = "x-HNA2TXFJ";
-	private $CONTRACT_ORDER_PREFIX = "x-Cb7ytekJ";
+    private $SPOT_ORDER_PREFIX     = "x-B3AUXNYV";
+	private $CONTRACT_ORDER_PREFIX = "x-ftGmvgAN";
 
     public function testPricesSpot()
     {
diff --git a/tests/BinanceStaticTests.php b/tests/BinanceStaticTests.php
index 9951cd6..c30395d 100644
--- a/tests/BinanceStaticTests.php
+++ b/tests/BinanceStaticTests.php
@@ -28,8 +28,8 @@ class BinanceStaticTests extends TestCase
     public static $capturedBody = null;
     private MockBinanceAPI $binance;
 
-    private $SPOT_ORDER_PREFIX     = "x-HNA2TXFJ";
-	private $CONTRACT_ORDER_PREFIX = "x-Cb7ytekJ";
+    private $SPOT_ORDER_PREFIX     = "x-B3AUXNYV";
+	private $CONTRACT_ORDER_PREFIX = "x-ftGmvgAN";
 
     // Default values for the tests
     private $symbol = 'ETHUSDT';