diff --git a/app/api/courrier/[id]/attachment/[attachmentIndex]/route.ts b/app/api/courrier/[id]/attachment/[attachmentIndex]/route.ts
index 6188d54..2b71c22 100644
--- a/app/api/courrier/[id]/attachment/[attachmentIndex]/route.ts
+++ b/app/api/courrier/[id]/attachment/[attachmentIndex]/route.ts
@@ -2,7 +2,6 @@ import { NextResponse } from 'next/server';
 import { getServerSession } from 'next-auth';
 import { authOptions } from "@/app/api/auth/options";
 import { getEmailContent, shouldUseGraphAPI } from '@/lib/services/email-service';
-import { fetchGraphEmailAttachment } from '@/lib/services/microsoft-graph-mail';
 import { logger } from '@/lib/logger';
 
 /**