diff --git a/app/Listeners/Invoice/InvoicePaidActivity.php b/app/Listeners/Invoice/InvoicePaidActivity.php
index 040b12317a1c..d86f1466126d 100644
--- a/app/Listeners/Invoice/InvoicePaidActivity.php
+++ b/app/Listeners/Invoice/InvoicePaidActivity.php
@@ -20,8 +20,6 @@ use stdClass;
 class InvoicePaidActivity implements ShouldQueue
 {
     protected $activity_repo;
-
-    public $delay = 10;
     
     /**
      * Create the event listener.
diff --git a/app/Listeners/Invoice/UpdateInvoiceActivity.php b/app/Listeners/Invoice/UpdateInvoiceActivity.php
index 13cc6106d55b..78bea3283369 100644
--- a/app/Listeners/Invoice/UpdateInvoiceActivity.php
+++ b/app/Listeners/Invoice/UpdateInvoiceActivity.php
@@ -21,8 +21,6 @@ class UpdateInvoiceActivity implements ShouldQueue
 {
     protected $activity_repo;
 
-    public $delay = 5;
-
     /**
      * Create the event listener.
      *