diff --git a/backend/requirements.txt b/backend/requirements.txt
index 2b17c5a..e156870 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -20,3 +20,4 @@ wechatpayv3==2.0.1
 drf-spectacular-sidecar==2026.1.1
 gunicorn==21.2.0
 requests
+django_filters