1 files changed, 2 insertions, 1 deletions
diff --git a/synapse/storage/devices.py b/synapse/storage/devices.py
index d149d8392e..2ed9ada783 100644
--- a/synapse/storage/devices.py
+++ b/synapse/storage/devices.py
@@ -13,7 +13,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 import logging
-import simplejson as json
 
 from twisted.internet import defer
 
@@ -21,6 +20,8 @@ from synapse.api.errors import StoreError
 from ._base import SQLBaseStore, Cache
 from synapse.util.caches.descriptors import cached, cachedList, cachedInlineCallbacks
 
+from canonicaljson import json
+
 from six import itervalues, iteritems
 
 logger = logging.getLogger(__name__)