diff --git a/src/controllers/06-request-list-controller.ts b/src/controllers/06-request-list-controller.ts
index ca5398f..a20020f 100644
--- a/src/controllers/06-request-list-controller.ts
+++ b/src/controllers/06-request-list-controller.ts
@@ -977,7 +977,7 @@ export class RequestListController extends Controller {
       });
 
       if (record.responsibleUserId === null) {
-        await prisma.requestWorkStepStatus.update({
+        await tx.requestWorkStepStatus.update({
           where: {
             step_requestWorkId: {
               step: step,