1 files changed, 1 insertions, 1 deletions

diff --git a/synapse/storage/background_updates.py b/synapse/storage/background_updates.py

index 11a1b942f1..8f3bff311a 100644
--- a/synapse/storage/background_updates.py
+++ b/synapse/storage/background_updates.py
@@ -19,7 +19,7 @@ from . import engines
 
 from twisted.internet import defer
 
-import ujson as json
+import simplejson as json
 import logging
 
 logger = logging.getLogger(__name__)