1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/util/caches/response_cache.py b/synapse/util/caches/response_cache.py
index a8491b42d5..afb03b2e1b 100644
--- a/synapse/util/caches/response_cache.py
+++ b/synapse/util/caches/response_cache.py
@@ -16,7 +16,7 @@ import logging
 
 from twisted.internet import defer
 
-from synapse.util.async import ObservableDeferred
+from synapse.util.async_helpers import ObservableDeferred
 from synapse.util.caches import register_cache
 from synapse.util.logcontext import make_deferred_yieldable, run_in_background