diff --git a/packages/api/src/module/shared/events/task-was-uncompleted-event.domain-event.ts b/packages/api/src/module/shared/events/task-was-uncompleted-event.domain-event.ts
new file mode 100644
index 00000000..5fad8423
--- /dev/null
+++ b/packages/api/src/module/shared/events/task-was-uncompleted-event.domain-event.ts
@@ -0,0 +1,4 @@
+export type TaskWasUncompleted = {
+  type: 'TaskWasUncompleted';
+  data: { learningMaterialsId: string; taskId: string };
+};