diff --git a/apps.json b/apps.json
index 5010842e..faeacfdc 100644
--- a/apps.json
+++ b/apps.json
@@ -1013,6 +1013,9 @@
         "url": "https://github.com/YunoHost-Apps/fallback_ynh"
     },
     "ffsync": {
+        "antifeatures": [
+            "deprecated-software"
+        ],
         "category": "synchronization",
         "level": 0,
         "state": "working",