diff --git a/federation/entities/activitypub/models.py b/federation/entities/activitypub/models.py
index 9151965..84ee45d 100644
--- a/federation/entities/activitypub/models.py
+++ b/federation/entities/activitypub/models.py
@@ -589,7 +589,6 @@ class Person(Object, base.Profile):
     capabilities = CompactedDict(litepub.capabilities)
     suspended = fields.Boolean(toot.suspended)
     public = True
-    finger = None
     _cached_inboxes = None
     _cached_public_key = None
     _cached_image_urls = None
@@ -1256,8 +1255,7 @@ def extract_receivers(entity):
     profile = None
     # don't care about receivers for payloads without an actor_id    
     if getattr(entity, 'actor_id'):
-        profile = get_profile(fid=entity.actor_id)
-        if not profile: profile = retrieve_and_parse_profile(entity.actor_id)
+        profile = retrieve_and_parse_profile(entity.actor_id)
     if not profile: return receivers
     
     for attr in ("to", "cc"):
diff --git a/federation/utils/network.py b/federation/utils/network.py
index 765c9b6..d5e4ba4 100644
--- a/federation/utils/network.py
+++ b/federation/utils/network.py
@@ -21,7 +21,7 @@ logger = logging.getLogger("federation")
 USER_AGENT = "python/federation/%s" % __version__
 
 session = CachedSession('fed_cache', backend=get_requests_cache_backend('fed_cache'))
-EXPIRATION = datetime.timedelta(hours=2)
+EXPIRATION = datetime.timedelta(hours=6)
 
 def fetch_content_type(url: str) -> Optional[str]:
     """