1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/storage/receipts.py b/synapse/storage/receipts.py
index 12b3cc7f5f..2c3aa33693 100644
--- a/synapse/storage/receipts.py
+++ b/synapse/storage/receipts.py
@@ -20,7 +20,7 @@ from synapse.util.caches.stream_change_cache import StreamChangeCache
 from twisted.internet import defer
 
 import logging
-import ujson as json
+import simplejson as json
 
 
 logger = logging.getLogger(__name__)