diff --git a/package.json b/package.json
index c2ec6be..8938ab5 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "my-weekly-todo-list",
-  "version": "1.15.9",
+  "version": "1.15.10",
   "description": "A web-based weekly task management application that organizes to-dos and calendar events in a single, intuitive weekly view",
   "main": "index.js",
   "scripts": {
diff --git a/src/app/api/tasks/sync/route.ts b/src/app/api/tasks/sync/route.ts
index bcaf051..32ed8f0 100644
--- a/src/app/api/tasks/sync/route.ts
+++ b/src/app/api/tasks/sync/route.ts
@@ -25,7 +25,7 @@ export async function GET(req: NextRequest) {
         const allExternalTasks = await prisma.task.findMany({
             where: {
                 userId: user.id,
-                externalProvider: { in: ['google', 'outlook'] },
+                externalProvider: { in: ['google', 'outlook', 'synology'] },
                 externalId: { not: null },
                 deletedAt: null,
             }