diff --git a/tests/unit/tasks/service.test.ts b/tests/unit/tasks/service.test.ts
index 92fc3b2..2a4ef36 100644
--- a/tests/unit/tasks/service.test.ts
+++ b/tests/unit/tasks/service.test.ts
@@ -57,6 +57,11 @@ describe('TaskService.createTask', () => {
     const due = '2025-09-10';
     const groupId = '12345@g.us';
 
+    // Sembrar el grupo para satisfacer la FK de tasks.group_id -> groups.id
+    memDb
+      .prepare(`INSERT INTO groups (id, community_id, name, active) VALUES (?, ?, ?, TRUE)`)
+      .run(groupId, 'test-community', 'Grupo de prueba');
+
     const id = TaskService.createTask(
       {
         description: 'Pagar servicios',