diff --git a/twocheckout-convert-plus-v2.3.1.zip b/twocheckout-convert-plus-v2.3.1.zip
new file mode 100644
index 0000000..0ea91d9
Binary files /dev/null and b/twocheckout-convert-plus-v2.3.1.zip differ
diff --git a/twocheckout-convert-plus/wc-twocheckout-convert-plus.php b/twocheckout-convert-plus/wc-twocheckout-convert-plus.php
index 7574012..39907d2 100644
--- a/twocheckout-convert-plus/wc-twocheckout-convert-plus.php
+++ b/twocheckout-convert-plus/wc-twocheckout-convert-plus.php
@@ -3,7 +3,7 @@
   Plugin Name: 2Checkout Convert Plus Payment Gateway
   Plugin URI:
   Description: Allows you to use 2Checkout payment gateway with the WooCommerce plugin.
-  Version: 2.3.0
+  Version: 2.3.1
   Author: 2Checkout
   Author URI: https://www.2checkout.com
  */
diff --git a/twocheckout-inline-v2.3.1.zip b/twocheckout-inline-v2.3.1.zip
new file mode 100644
index 0000000..158bed5
Binary files /dev/null and b/twocheckout-inline-v2.3.1.zip differ
diff --git a/twocheckout-inline/src/Twocheckout/class-two-checkout-ipn-helper.php b/twocheckout-inline/src/Twocheckout/class-two-checkout-ipn-helper.php
index e89d0f1..581d7bf 100644
--- a/twocheckout-inline/src/Twocheckout/class-two-checkout-ipn-helper.php
+++ b/twocheckout-inline/src/Twocheckout/class-two-checkout-ipn-helper.php
@@ -131,7 +131,7 @@ protected function _is_order_refunded() {
 	/**
 	 * @return string
 	 */
-	private function _calculate_ipn_response() {
+	private function _calculate_ipn_response($algo='sha3-256') {
 		$result_response     = '';
 		$ipn_params_response = [];
 		// we're assuming that these always exist, if they don't then the problem is on avangate side
@@ -144,11 +144,19 @@ private function _calculate_ipn_response() {
 			$result_response .= $this->array_expand( (array) $val );
 		}
 
-		return sprintf(
-			'<EPAYMENT>%s|%s</EPAYMENT>',
-			$ipn_params_response['DATE'],
-			$this->generate_hash( $this->secret_key, $result_response )
-		);
+        if ('md5' === $algo)
+            return sprintf(
+                '<EPAYMENT>%s|%s</EPAYMENT>',
+                $ipn_params_response['DATE'],
+                $this->generate_hash($this->secret_key, $result_response, $algo)
+            );
+        else
+            return sprintf(
+                '<sig algo="%s" date="%s">%s</sig>',
+                $algo,
+                $ipn_params_response['DATE'],
+                $this->generate_hash($this->secret_key, $result_response, $algo)
+            );
 	}
 
 	/**
@@ -214,7 +222,7 @@ public function is_ipn_response_valid() {
 		$receivedHash = $this->request_params['SIGNATURE_SHA3_256'];
 
         if(!$receivedHash){
-            $receivedAlgo='sha2-256';
+            $receivedAlgo='sha256';
             $receivedHash = $this->request_params['SIGNATURE_SHA2_256'];
         }
 
@@ -276,6 +284,7 @@ public function generate_hash($key, $data, $algo = 'sha3-256') {
 	 * @return string
 	 */
 	public function process_ipn() {
+        $hash = $this->extractHashFromRequest();
 		try {
 			if ( ! isset( $this->request_params['REFNO'] ) && empty( $this->request_params['REFNO'] ) ) {
 				self::log( 'Cannot identify order: "%s".', $this->request_params['REFNOEXT'] );
@@ -294,7 +303,7 @@ public function process_ipn() {
 		} catch ( Exception $ex ) {
 			self::log( 'Exception processing IPN: ' . $ex->getMessage() );
 		}
-		echo $this->_calculate_ipn_response();
+        echo $this->_calculate_ipn_response($hash['algo']);
 		exit();
 	}
 
@@ -326,4 +335,25 @@ private function array_expand( $array ) {
 
 		return $retval;
 	}
+
+    /**
+     * @return array    [hash, algo]
+     */
+    protected function extractHashFromRequest():array {
+        $receivedAlgo = 'sha3-256';
+        $receivedHash = $this->request_params['SIGNATURE_SHA3_256'];
+
+        if (!$receivedHash) {
+            $receivedAlgo = 'sha256';
+            $receivedHash = $this->request_params['SIGNATURE_SHA2_256'];
+        }
+
+        if (!$receivedHash) {
+            $receivedAlgo = 'md5';
+            $receivedHash = $this->request_params['HASH'];
+        }
+
+        return ['hash' => $receivedHash, 'algo' => $receivedAlgo];
+    }
+
 }
diff --git a/twocheckout-inline/wc-twocheckout-inline.php b/twocheckout-inline/wc-twocheckout-inline.php
index 455d62f..029bcc9 100644
--- a/twocheckout-inline/wc-twocheckout-inline.php
+++ b/twocheckout-inline/wc-twocheckout-inline.php
@@ -3,7 +3,7 @@
   Plugin Name: 2Checkout Inline Payment Gateway
   Plugin URI:
   Description: Allows you to use 2Checkout payment gateway with the WooCommerce plugin.
-  Version: 2.3.0
+  Version: 2.3.1
   Author: 2Checkout
   Author URI: https://www.2checkout.com
  */
@@ -129,7 +129,7 @@ function enqueue_style() {
 		//enqueue a script
 		function enqueue_script() {
 			wp_enqueue_script( 'twocheckout_inline_script',
-				'/wp-content/plugins/twocheckout-inline/assets/js/twocheckout_inline.js' );
+				'/wp-content/plugins/twocheckout-inline/assets/js/twocheckout_inline.js', ['jquery'] );
 		}
 
 		/**
@@ -548,7 +548,11 @@ public function check_ipn_response_inline() {
 			if ( $_SERVER['REQUEST_METHOD'] !== 'POST' ) {
 				return;
 			}
+
 			$params = $_POST;
+            if(empty($params))
+                $params=json_decode(file_get_contents('php://input'),true);
+
 			unset( $params['wc-api'] );
 			if ( isset( $params['REFNOEXT'] ) && ! empty( $params['REFNOEXT'] ) ) {
 				$order = wc_get_order( $params['REFNOEXT'] );
diff --git a/twocheckout-v2.3.1.zip b/twocheckout-v2.3.1.zip
new file mode 100644
index 0000000..f8d8d59
Binary files /dev/null and b/twocheckout-v2.3.1.zip differ
diff --git a/twocheckout/src/Twocheckout/TwoCheckoutIpnHelperApi.php b/twocheckout/src/Twocheckout/TwoCheckoutIpnHelperApi.php
index 21bff25..0945738 100644
--- a/twocheckout/src/Twocheckout/TwoCheckoutIpnHelperApi.php
+++ b/twocheckout/src/Twocheckout/TwoCheckoutIpnHelperApi.php
@@ -171,28 +171,36 @@ public function processorder_status(string $order_status,string $refNo) {
 		}
 	}
 
-	/**
-	 * Validate Ipn request
-	 * @return bool
-	 */
-	public function is_ipn_response_valid() {
-		$result        = '';
-
-        $receivedAlgo='sha3-256';
+    /**
+     * @return array    [hash, algo]
+     */
+    protected function extractHashFromRequest():array {
+        $receivedAlgo = 'sha3-256';
         $receivedHash = $this->request_params['SIGNATURE_SHA3_256'];
 
-        if(!$receivedHash){
-            $receivedAlgo='sha256';
+        if (!$receivedHash) {
+            $receivedAlgo = 'sha256';
             $receivedHash = $this->request_params['SIGNATURE_SHA2_256'];
         }
 
-        if(!$receivedHash){
-            $receivedAlgo='md5';
+        if (!$receivedHash) {
+            $receivedAlgo = 'md5';
             $receivedHash = $this->request_params['HASH'];
         }
 
-		foreach ( $this->request_params as $key => $val ) {
+        return ['hash' => $receivedHash, 'algo' => $receivedAlgo];
+    }
+
+	/**
+	 * Validate Ipn request
+	 * @return bool
+	 */
+	public function is_ipn_response_valid() {
+		$result        = '';
+
+        $hash = $this->extractHashFromRequest();
 
+		foreach ( $this->request_params as $key => $val ) {
 			if ( !in_array($key ,["HASH", "SIGNATURE_SHA2_256", "SIGNATURE_SHA3_256"]) ) {
 				if ( is_array( $val ) ) {
 					$result .= $this->array_expand( $val );
@@ -204,8 +212,8 @@ public function is_ipn_response_valid() {
 		}
 
 		if ( isset( $this->request_params['REFNO'] ) && ! empty( $this->request_params['REFNO'] ) ) {
-			$calc_hash = $this->generate_hash( $this->secret_key, $result, $receivedAlgo );
-			if ( $receivedHash === $calc_hash ) {
+			$calc_hash = $this->generate_hash( $this->secret_key, $result, $hash['algo'] );
+			if ( $hash['hash'] === $calc_hash ) {
 				return true;
 			}
 		}
@@ -258,6 +266,8 @@ public static function log( $message ) {
 	 * @return string
 	 */
 	public function process_ipn() {
+        $hash = $this->extractHashFromRequest();
+
 		try {
 			if ( ! isset( $this->request_params['REFNO'] ) && empty( $this->request_params['REFNO'] ) ) {
 				self::log( 'Cannot identify order: "%s".', $this->request_params['REFNOEXT'] );
@@ -276,7 +286,7 @@ public function process_ipn() {
 		} catch ( Exception $ex ) {
 			self::log( 'Exception processing IPN: ' . $ex->getMessage() );
 		}
-		echo $this->_calculate_ipn_response();
+		echo $this->_calculate_ipn_response($hash['algo']);
 		exit();
 	}
 
@@ -305,26 +315,34 @@ protected function _process_fraud() {
 		}
 	}
 
-	/**
-	 * @return string
-	 */
-	private function _calculate_ipn_response() {
-		$result_response     = '';
-		$ipn_params_response = [];
-		// we're assuming that these always exist, if they don't then the problem is on avangate side
-		$ipn_params_response['IPN_PID'][0]   = $this->request_params['IPN_PID'][0];
-		$ipn_params_response['IPN_PNAME'][0] = $this->request_params['IPN_PNAME'][0];
-		$ipn_params_response['IPN_DATE']     = $this->request_params['IPN_DATE'];
-		$ipn_params_response['DATE']         = date( 'YmdHis' );
-
-		foreach ( $ipn_params_response as $key => $val ) {
-			$result_response .= $this->array_expand( (array) $val );
-		}
+    /**
+     * @return string
+     */
+    private function _calculate_ipn_response($algo='sha3-256') {
+        $resultResponse      = '';
+        $ipn_params_response = [];
+        // we're assuming that these always exist, if they don't then the problem is on avangate side
+        $ipn_params_response['IPN_PID'][0]   = $this->request_params['IPN_PID'][0];
+        $ipn_params_response['IPN_PNAME'][0] = $this->request_params['IPN_PNAME'][0];
+        $ipn_params_response['IPN_DATE']     = $this->request_params['IPN_DATE'];
+        $ipn_params_response['DATE']         = date( 'YmdHis' );
+
+        foreach ( $ipn_params_response as $key => $val ) {
+            $resultResponse .= $this->array_expand( (array) $val );
+        }
 
-		return sprintf(
-			'<EPAYMENT>%s|%s</EPAYMENT>',
-			$ipn_params_response['DATE'],
-			$this->generate_hash( $this->secret_key, $result_response )
-		);
-	}
+        if ('md5' === $algo)
+            return sprintf(
+                '<EPAYMENT>%s|%s</EPAYMENT>',
+                $ipn_params_response['DATE'],
+                $this->generate_hash($this->secret_key, $resultResponse, $algo)
+            );
+        else
+            return sprintf(
+                '<sig algo="%s" date="%s">%s</sig>',
+                $algo,
+                $ipn_params_response['DATE'],
+                $this->generate_hash($this->secret_key, $resultResponse, $algo)
+            );
+    }
 }
diff --git a/twocheckout/wc-twocheckout.php b/twocheckout/wc-twocheckout.php
index 36e0abe..0553645 100644
--- a/twocheckout/wc-twocheckout.php
+++ b/twocheckout/wc-twocheckout.php
@@ -3,7 +3,7 @@
   Plugin Name: 2Checkout Payment Gateway
   Plugin URI:
   Description: Allows you to use 2Checkout payment gateway with the WooCommerce plugin.
-  Version: 2.3.0
+  Version: 2.3.1
   Author: 2Checkout
   Author URI: https://www.2checkout.com
  */
@@ -141,8 +141,8 @@ public function init_form_fields() {
 		 */
 		public function payment_fields() {
 
-			wp_enqueue_script( '2payjs', 'https://2pay-js.2checkout.com/v1/2pay.js' );
-			wp_enqueue_script( 'twocheckout_script', '/wp-content/plugins/twocheckout/assets/js/twocheckout.js' );
+			wp_enqueue_script( '2payjs', 'https://2pay-js.2checkout.com/v1/2pay.js', ['jquery'] );
+			wp_enqueue_script( 'twocheckout_script', '/wp-content/plugins/twocheckout/assets/js/twocheckout.js', ['jquery'] );
 			wp_enqueue_style( 'twocheckout_style', '/wp-content/plugins/twocheckout/assets/css/twocheckout.css' );
 			$twocheckout_is_checkout = ( is_checkout() && empty( $_GET['pay_for_order'] ) ) ? 'yes' : 'no';
 			require_once plugin_dir_path( __FILE__ ) . 'templates/payment-fields.php';
@@ -602,9 +602,13 @@ public function check_ipn_response_api() {
 				return;
 			}
 			$params = $_POST;
+            if(empty($params))
+                $params=json_decode(file_get_contents('php://input'),true);
+
 			unset( $params['wc-api'] );
 			if ( isset( $params['REFNOEXT'] ) && ! empty( $params['REFNOEXT'] ) ) {
 				$order = wc_get_order( $params['REFNOEXT'] );
+
 				if ( $order && $order->get_payment_method() == 'twocheckout' ) {
 					try {
 						$ipn_helper = new Two_Checkout_Ipn_Helper_Api( $params, $this->secret_key, $this->complete_order_on_payment, $this->debug, $order );
@@ -612,6 +616,7 @@ public function check_ipn_response_api() {
 						$this->log( 'Unable to find order with RefNo: ' . $params['REFNOEXT'] );
 						throw new Exception( 'An error occurred!' );
 					}
+
 					if ( ! $ipn_helper->is_ipn_response_valid() ) {
 						self::log( sprintf( 'SHA3 hash mismatch for 2Checkout IPN with date: "%s" . ',
 							$params['IPN_DATE'] ) );