diff --git a/app/Http/Controllers/WebpayController.php b/app/Http/Controllers/WebpayController.php
index cd1a79d..b19d093 100644
--- a/app/Http/Controllers/WebpayController.php
+++ b/app/Http/Controllers/WebpayController.php
@@ -24,10 +24,10 @@ public function create()
     {
 
         $createTx = [
-            'buyOrder' => "O-" . rand(1, 10000),
-            "sessionId" => "S-" . rand(1, 10000),
+            'buyOrder' => "O-" . random_int(1, 10000),
+            "sessionId" => "S-" . random_int(1, 10000),
             'returnUrl' => url('/') . '/webpay-plus/commit',
-            'amount' => rand(1000, 2000)
+            'amount' => random_int(1000, 2000)
         ];
 
 
diff --git a/app/Http/Controllers/WebpayPlusDeferredController.php b/app/Http/Controllers/WebpayPlusDeferredController.php
index 8586d60..35c5b83 100644
--- a/app/Http/Controllers/WebpayPlusDeferredController.php
+++ b/app/Http/Controllers/WebpayPlusDeferredController.php
@@ -22,10 +22,10 @@ public function create()
     {
 
         $createTx = [
-            'buyOrder' => "O-" . rand(1, 10000),
-            "sessionId" => "S-" . rand(1, 10000),
+            'buyOrder' => "O-" . random_int(1, 10000),
+            "sessionId" => "S-" . random_int(1, 10000),
             'returnUrl' => url('/') . '/webpay-plus-diferido/commit',
-            'amount' => rand(1000, 2000)
+            'amount' => random_int(1000, 2000)
         ];
 
 
diff --git a/app/Http/Controllers/WebpayPlusMallController.php b/app/Http/Controllers/WebpayPlusMallController.php
index 4234d20..e5085e3 100644
--- a/app/Http/Controllers/WebpayPlusMallController.php
+++ b/app/Http/Controllers/WebpayPlusMallController.php
@@ -21,19 +21,19 @@ public function create()
     {
 
         $createTx = [
-            "buy_order" => "O-" . rand(1, 10000),
-            "session_id" => "S-" . rand(1, 10000),
+            "buy_order" => "O-" . random_int(1, 10000),
+            "session_id" => "S-" . random_int(1, 10000),
             "return_url" => url("/") . "/webpay-mall/commit",
             "details" => [
                 [
                     "amount" => 10000,
                     "commerce_code" => 597055555536,
-                    "buy_order" => "ordenCompraDetalle1234"
+                    "buy_order" => "ordenCompraDetalle" . random_int(1, 10000)
                 ],
                 [
                     "amount" => 12000,
                     "commerce_code" => 597055555537,
-                    "buy_order" => "ordenCompraDetalle4321"
+                    "buy_order" => "ordenCompraDetalle" . random_int(1, 10000)
                 ],
             ]
         ];
diff --git a/app/Http/Controllers/WebpayPlusMallDeferredController.php b/app/Http/Controllers/WebpayPlusMallDeferredController.php
index 931d160..144ccd7 100644
--- a/app/Http/Controllers/WebpayPlusMallDeferredController.php
+++ b/app/Http/Controllers/WebpayPlusMallDeferredController.php
@@ -21,19 +21,19 @@ public function create()
     {
 
         $createTx = [
-            'buy_order' => "O-" . rand(1, 10000),
-            "session_id" => "S-" . rand(1, 10000),
+            'buy_order' => "O-" . random_int(1, 10000),
+            "session_id" => "S-" . random_int(1, 10000),
             'return_url' => url('/') . '/webpay-mall-diferido/commit',
             'details' => [
                 [
                     "amount" => 10000,
                     "commerce_code" => 597055555582,
-                    "buy_order" => "ordenCompraDetalle" . rand(1, 10000)
+                    "buy_order" => "ordenCompraDetalle" . random_int(1, 10000)
                 ],
                 [
                     "amount" => 12000,
                     "commerce_code" => 597055555583,
-                    "buy_order" => "ordenCompraDetalle" . rand(1, 10000)
+                    "buy_order" => "ordenCompraDetalle" . random_int(1, 10000)
                 ],
             ]
         ];