diff --git a/synapse/api/auth.py b/synapse/api/auth.py
index 280d4c4452..03a215ab1b 100644
--- a/synapse/api/auth.py
+++ b/synapse/api/auth.py
@@ -146,7 +146,7 @@ class Auth(object):
         with Measure(self.clock, "check_host_in_room"):
             latest_event_ids = yield self.store.get_latest_event_ids_in_room(room_id)
 
-            logger.info("calling resolve_state_groups from check_host_in_room")
+            logger.debug("calling resolve_state_groups from check_host_in_room")
             entry = yield self.state.resolve_state_groups(
                 room_id, latest_event_ids
             )
diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py
index ced5646e9a..d3f5892376 100644
--- a/synapse/handlers/federation.py
+++ b/synapse/handlers/federation.py
@@ -591,7 +591,7 @@ class FederationHandler(BaseHandler):
 
         event_ids = list(extremities.keys())
 
-        logger.info("calling resolve_state_groups in _maybe_backfill")
+        logger.debug("calling resolve_state_groups in _maybe_backfill")
         states = yield preserve_context_over_deferred(defer.gatherResults([
             preserve_fn(self.state_handler.resolve_state_groups)(room_id, [e])
             for e in event_ids
diff --git a/synapse/state.py b/synapse/state.py
index 3a0a874c9e..20aaacf40f 100644
--- a/synapse/state.py
+++ b/synapse/state.py
@@ -129,7 +129,7 @@ class StateHandler(object):
         if not latest_event_ids:
             latest_event_ids = yield self.store.get_latest_event_ids_in_room(room_id)
 
-        logger.info("calling resolve_state_groups from get_current_state")
+        logger.debug("calling resolve_state_groups from get_current_state")
         ret = yield self.resolve_state_groups(room_id, latest_event_ids)
         state = ret.state
 
@@ -154,7 +154,7 @@ class StateHandler(object):
         if not latest_event_ids:
             latest_event_ids = yield self.store.get_latest_event_ids_in_room(room_id)
 
-        logger.info("calling resolve_state_groups from get_current_state_ids")
+        logger.debug("calling resolve_state_groups from get_current_state_ids")
         ret = yield self.resolve_state_groups(room_id, latest_event_ids)
         state = ret.state
 
@@ -168,7 +168,7 @@ class StateHandler(object):
     def get_current_user_in_room(self, room_id, latest_event_ids=None):
         if not latest_event_ids:
             latest_event_ids = yield self.store.get_latest_event_ids_in_room(room_id)
-        logger.info("calling resolve_state_groups from get_current_user_in_room")
+        logger.debug("calling resolve_state_groups from get_current_user_in_room")
         entry = yield self.resolve_state_groups(room_id, latest_event_ids)
         joined_users = yield self.store.get_joined_users_from_state(
             room_id, entry.state_id, entry.state
@@ -232,7 +232,7 @@ class StateHandler(object):
             context.prev_state_events = []
             defer.returnValue(context)
 
-        logger.info("calling resolve_state_groups from compute_event_context")
+        logger.debug("calling resolve_state_groups from compute_event_context")
         if event.is_state():
             entry = yield self.resolve_state_groups(
                 event.room_id, [e for e, _ in event.prev_events],