diff --git a/debian/50gnm.py b/debian/50gnm.py
index 5535838..c47b660 100644
--- a/debian/50gnm.py
+++ b/debian/50gnm.py
@@ -177,13 +177,13 @@ JSON_CELL_TYPES = {
   },
   "airquality": {
     "url": "[passerelle_url]airquality/atmo/details/fr/lyon/",
-    "cache_duration": 3600,
+    "cache_duration": 300,
     "force_async": False,
     "name": u"Qualité de l'air"
   },
   "pollen": {
     "url": "https://download.data.grandlyon.com/ws/rdata/rnsa_reseau_aerobio.rnsabulletin/all.json",
-    "cache_duration": 86400,
+    "cache_duration": 3000,
     "force_async": False,
     "name": u"Info Pollen",
     "additional-data": [