diff --git a/composer.json b/composer.json
index 3269bd9..1136beb 100755
--- a/composer.json
+++ b/composer.json
@@ -1,12 +1,15 @@
 {
   "name": "moyasar/moyasar-php",
-  "description": "php api wrapper for moyasar.com",
+  "description": "PHP wrapper library for Moyasar Payment Service",
   "type": "library",
   "authors": [
     {
       "name": "Sohib H Algotimel",
       "email": "s@sgh.sa",
       "homepage": "https://sgh.sa"
+    },
+    {
+      "name": "Moyasar Dev Team"
     }
   ],
   "minimum-stability": "dev",
diff --git a/src/Moyasar/Client.php b/src/Moyasar/Client.php
index 6c2fbcc..328609b 100755
--- a/src/Moyasar/Client.php
+++ b/src/Moyasar/Client.php
@@ -57,6 +57,22 @@ public static function post($request, $options = [])
         throw new HttpRequestNotFound($response->getStatusCode() . ' status code returned');
     }
 
+	public static function put($url,$options = [])
+	{
+		$client = new GuzzleHttp\Client();
+		$data = [
+			GuzzleHttp\RequestOptions::AUTH => [self::$apiKey, ''],
+			GuzzleHttp\RequestOptions::FORM_PARAMS => $options,
+			GuzzleHttp\RequestOptions::DEBUG => false
+		];
+
+		$response = $client->put($url, $data);
+		if ($response->getStatusCode() == '200' OR '201') {
+			return $response->getBody()->getContents();
+		}
+		throw new HttpRequestNotFound($response->getStatusCode() . ' status code returned');
+	}
+
 
 }
 
diff --git a/src/Moyasar/Invoice.php b/src/Moyasar/Invoice.php
index 09642f3..5ae51cd 100644
--- a/src/Moyasar/Invoice.php
+++ b/src/Moyasar/Invoice.php
@@ -35,5 +35,13 @@ public static function all(){
         return json_decode(Client::get("https://api.moyasar.com/v1/invoices"));
     }
 
+    public static function update($id,$parameter = [] ){
+	    return json_decode(Client::put("https://api.moyasar.com/v1/invoices/$id", $parameter));
+    }
+
+    public static function cancel($id){
+	    return json_decode(Client::put("https://api.moyasar.com/v1/invoices/$id/cancel"));
+    }
+
 
 }
diff --git a/src/Moyasar/Payment.php b/src/Moyasar/Payment.php
index 48db14c..a8e0025 100644
--- a/src/Moyasar/Payment.php
+++ b/src/Moyasar/Payment.php
@@ -8,7 +8,6 @@
 
 namespace Moyasar;
 
-
 class Payment
 {
     const AMOUNT = "amount";
@@ -110,5 +109,11 @@ public static function all(){
 
     }
 
+    public static function update($id, $description = ""){
+	    $data = [
+		    self::DESCRIPTION => $description
+	    ];
+	    return json_decode(Client::put("https://api.moyasar.com/v1/payments/$id", $data));
+    }
 
 }