1 files changed, 6 insertions, 5 deletions
diff --git a/tests/rest/client/test_transactions.py b/tests/rest/client/test_transactions.py
index b5bc2fa255..eee99ca2e0 100644
--- a/tests/rest/client/test_transactions.py
+++ b/tests/rest/client/test_transactions.py
@@ -1,10 +1,11 @@
-from synapse.rest.client.transactions import HttpTransactionCache
-from synapse.rest.client.transactions import CLEANUP_PERIOD_MS
-from twisted.internet import defer
 from mock import Mock, call
 
-from synapse.util import async
+from twisted.internet import defer, reactor
+
+from synapse.rest.client.transactions import CLEANUP_PERIOD_MS, HttpTransactionCache
+from synapse.util import Clock
 from synapse.util.logcontext import LoggingContext
+
 from tests import unittest
 from tests.utils import MockClock
 
@@ -46,7 +47,7 @@ class HttpTransactionCacheTestCase(unittest.TestCase):
     def test_logcontexts_with_async_result(self):
         @defer.inlineCallbacks
         def cb():
-            yield async.sleep(0)
+            yield Clock(reactor).sleep(0)
             defer.returnValue("yay")
 
         @defer.inlineCallbacks