diff --git a/app/Classes/Modules/Transactions/Services/GeneratesTransactionBillNumber.php b/app/Classes/Modules/Transactions/Services/GeneratesTransactionBillNumber.php
index 943da696..0041d011 100644
--- a/app/Classes/Modules/Transactions/Services/GeneratesTransactionBillNumber.php
+++ b/app/Classes/Modules/Transactions/Services/GeneratesTransactionBillNumber.php
@@ -34,7 +34,7 @@ class GeneratesTransactionBillNumber
 
         $attempt = 0;
         while ($attempt < 10) {  // Retry up to 10 times
-            $billNumber = $prefix . $date->format('Y') . $date->format('m') . '-' . microtime(true);
+            $billNumber = $prefix . $date->format('Y') . $date->format('m') . '-' . intval(microtime(true));
             if (!$this->checksIfTransactionBillNumberExists->execute($billNumber)) {
                 return $billNumber;
             }