diff --git a/portail_citoyen/apps/feed_plugin/models.py b/portail_citoyen/apps/feed_plugin/models.py
index ad784fc..ca2977e 100644
--- a/portail_citoyen/apps/feed_plugin/models.py
+++ b/portail_citoyen/apps/feed_plugin/models.py
@@ -65,7 +65,7 @@ class Feed(models.Model):
             entries.append((date, title, entry.link))
         entries.sort(reverse=True)
         entries = entries[:limit]
-        cache.set(key, (entries, now))
+        cache.set(key, (entries, now), 24*3600)
         duration = datetime.datetime.utcnow()-now
         logger.debug('loaded RSS feed %r in %s seconds', self.url, duration.seconds)
         return entries