diff --git a/debian/50gnm.py b/debian/50gnm.py
index e4f6b04..6d8278c 100644
--- a/debian/50gnm.py
+++ b/debian/50gnm.py
@@ -268,7 +268,7 @@ JSON_CELL_TYPES = {
     }
   },
   "silo-a-verre": {
-    "url": "https://download.data.grandlyon.com/ws/grandlyon/gic_collecte.gicsiloverre/all.json?field=identifiant&value=[identifiant]",
+    "url": "https://download.data.grandlyon.com/wfs/grandlyon?SERVICE=WFS&VERSION=2.0.0&outputformat=GEOJSON&request=GetFeature&typename=gic_collecte.gicsiloverre&filter=<Filter><PropertyIsEqualTo><PropertyName>identifiant</PropertyName><Literal>[identifiant]</Literal></PropertyIsEqualTo></Filter>",
     "cache_duration": 86400,
     "force_async": False,
     "name": u"Silo à verre",