1 files changed, 2 insertions, 2 deletions
diff --git a/synapse/storage/databases/main/client_ips.py b/synapse/storage/databases/main/client_ips.py
index c30746c886..ec8260e906 100644
--- a/synapse/storage/databases/main/client_ips.py
+++ b/synapse/storage/databases/main/client_ips.py
@@ -19,7 +19,7 @@ from typing import Dict, Optional, Tuple
 from synapse.metrics.background_process_metrics import wrap_as_background_process
 from synapse.storage._base import SQLBaseStore
 from synapse.storage.database import DatabasePool, make_tuple_comparison_clause
-from synapse.util.caches.descriptors import Cache
+from synapse.util.caches.deferred_cache import DeferredCache
 
 logger = logging.getLogger(__name__)
 
@@ -410,7 +410,7 @@ class ClientIpWorkerStore(ClientIpBackgroundUpdateStore):
 class ClientIpStore(ClientIpWorkerStore):
     def __init__(self, database: DatabasePool, db_conn, hs):
 
-        self.client_ip_last_seen = Cache(
+        self.client_ip_last_seen = DeferredCache(
             name="client_ip_last_seen", keylen=4, max_entries=50000
         )