diff --git a/app/Jobs/UpdateSite.php b/app/Jobs/UpdateSite.php
index 8e039af..c7c3fdc 100644
--- a/app/Jobs/UpdateSite.php
+++ b/app/Jobs/UpdateSite.php
@@ -140,7 +140,10 @@ public function handle(): void
         }
 
         // Run the postupdate steps
-        $postUpdateResult = $connection->finalizeUpdate(["fromVersion" => $healthResult->cms_version]);
+        $postUpdateResult = $connection->finalizeUpdate([
+            "fromVersion" => $healthResult->cms_version,
+            "updateFileName" => $prepareResult->filename,
+        ]);
 
         if (!$postUpdateResult->success) {
             throw new UpdateException(
diff --git a/app/RemoteSite/Connection.php b/app/RemoteSite/Connection.php
index c96888f..6afbf9a 100644
--- a/app/RemoteSite/Connection.php
+++ b/app/RemoteSite/Connection.php
@@ -23,7 +23,7 @@
  * @method  HealthCheckResponse checkHealth()
  * @method  GetUpdateResponse getUpdate()
  * @method  PrepareUpdateResponse prepareUpdate(array<string,string> $data)
- * @method  FinalizeUpdateResponse finalizeUpdate(array<string,string> $data)
+ * @method  FinalizeUpdateResponse finalizeUpdate(array<string,string|null> $data)
  * @method  NotificationResponse notificationSuccess(array<string,string> $data)
  * @method  NotificationResponse notificationFailed(array<string,string> $data)
  */
diff --git a/app/RemoteSite/Responses/PrepareUpdate.php b/app/RemoteSite/Responses/PrepareUpdate.php
index 3efc4c1..6c22aca 100644
--- a/app/RemoteSite/Responses/PrepareUpdate.php
+++ b/app/RemoteSite/Responses/PrepareUpdate.php
@@ -8,7 +8,8 @@ class PrepareUpdate extends BaseDTO implements ResponseInterface
 {
     public function __construct(
         public string $password,
-        public int $filesize
+        public int $filesize,
+        public ?string $filename = null
     ) {
     }
 }