diff --git a/.changeset/real-turkeys-report.md b/.changeset/real-turkeys-report.md
new file mode 100644
index 0000000000..7e13f3a937
--- /dev/null
+++ b/.changeset/real-turkeys-report.md
@@ -0,0 +1,5 @@
+---
+'@backstage/backend-tasks': patch
+---
+
+Fixed bug in backend TaskWorker, adding `next_run_start_at` as a merge conflict when scheduler changes
diff --git a/packages/backend-tasks/src/tasks/TaskWorker.ts b/packages/backend-tasks/src/tasks/TaskWorker.ts
index a03d1ec058..f1acb4ed19 100644
--- a/packages/backend-tasks/src/tasks/TaskWorker.ts
+++ b/packages/backend-tasks/src/tasks/TaskWorker.ts
@@ -199,7 +199,7 @@ export class TaskWorker {
         next_run_start_at: startAt,
       })
       .onConflict('id')
-      .merge(['settings_json']);
+      .merge(['settings_json', 'next_run_start_at']);
   }
 
   /**