diff --git a/src/Contracts/HandleSubscriptions.php b/src/Contracts/HandleSubscriptions.php
index 7ea87f2..ed94701 100644
--- a/src/Contracts/HandleSubscriptions.php
+++ b/src/Contracts/HandleSubscriptions.php
@@ -20,13 +20,12 @@ public function checkoutOnSubscription($subscription, $billable, Plan $plan, Req
     /**
      * Subscribe the user to a given plan.
      *
-     * @param  \RenokiCo\CashierRegister\Models\Stripe\Subscription  $subscription
      * @param  \Illuminate\Database\Eloquent\Model  $billable
      * @param  \RenokiCo\CashierRegister\Plan  $plan
      * @param  \Illuminate\Http\Request  $request
      * @return void
      */
-    public function subscribeToPlan($subscription, $billable, Plan $plan, Request $request);
+    public function subscribeToPlan($billable, Plan $plan, Request $request);
 
     /**
      * Swap the current subscription plan.
diff --git a/src/Http/Controllers/Inertia/SubscriptionController.php b/src/Http/Controllers/Inertia/SubscriptionController.php
index 49c0a6e..e4cbf43 100644
--- a/src/Http/Controllers/Inertia/SubscriptionController.php
+++ b/src/Http/Controllers/Inertia/SubscriptionController.php
@@ -114,10 +114,7 @@ public function swapPlan(HandleSubscriptions $manager, Request $request, string
                 // a default payment method set and we will initialize the subscription in case it is not subscribed
                 // to a plan with the given subscription name.
                 return $manager->subscribeToPlan(
-                    $billable->newSubscription($request->subscription, $newPlan->getId()),
-                    $billable,
-                    $newPlan,
-                    $request
+                    $billable, $newPlan, $request
                 );
             });
         }
diff --git a/stubs/stripe/app/Actions/BillingPortal/HandleSubscriptions.php b/stubs/stripe/app/Actions/BillingPortal/HandleSubscriptions.php
index 9440ac8..56749e6 100644
--- a/stubs/stripe/app/Actions/BillingPortal/HandleSubscriptions.php
+++ b/stubs/stripe/app/Actions/BillingPortal/HandleSubscriptions.php
@@ -28,15 +28,16 @@ public function checkoutOnSubscription($subscription, $billable, Plan $plan, Req
     /**
      * Subscribe the user to a given plan.
      *
-     * @param  \RenokiCo\CashierRegister\Models\Stripe\Subscription  $subscription
      * @param  \Illuminate\Database\Eloquent\Model  $billable
      * @param  \RenokiCo\CashierRegister\Plan  $plan
      * @param  \Illuminate\Http\Request  $request
      * @return \RenokiCo\CashierRegister\Models\Stripe\Subscription
      */
-    public function subscribeToPlan($subscription, $billable, Plan $plan, Request $request)
+    public function subscribeToPlan($billable, Plan $plan, Request $request)
     {
-        return $subscription->create($billable->defaultPaymentMethod()->id);
+        return $billable
+            ->newSubscription($request->subscription, $plan->getId())
+            ->create($billable->defaultPaymentMethod()->id);
     }
 
     /**
diff --git a/tests/Actions/HandleSubscriptions.php b/tests/Actions/HandleSubscriptions.php
index 69e5354..1566263 100644
--- a/tests/Actions/HandleSubscriptions.php
+++ b/tests/Actions/HandleSubscriptions.php
@@ -28,15 +28,16 @@ public function checkoutOnSubscription($subscription, $billable, Plan $plan, Req
     /**
      * Subscribe the user to a given plan.
      *
-     * @param  \RenokiCo\CashierRegister\Models\Stripe\Subscription  $subscription
      * @param  \Illuminate\Database\Eloquent\Model  $billable
      * @param  \RenokiCo\CashierRegister\Plan  $plan
      * @param  \Illuminate\Http\Request  $request
      * @return void
      */
-    public function subscribeToPlan($subscription, $billable, Plan $plan, Request $request)
+    public function subscribeToPlan($billable, Plan $plan, Request $request)
     {
-        return $subscription->create($billable->defaultPaymentMethod()->id);
+        return $billable
+            ->newSubscription($request->subscription, $plan->getId())
+            ->create($billable->defaultPaymentMethod()->id);
     }
 
     /**