1 files changed, 3 insertions, 1 deletions
diff --git a/synapse/python_dependencies.py b/synapse/python_dependencies.py
index 5871feaafd..8de8cb2c12 100644
--- a/synapse/python_dependencies.py
+++ b/synapse/python_dependencies.py
@@ -1,6 +1,7 @@
 # Copyright 2015, 2016 OpenMarket Ltd
 # Copyright 2017 Vector Creations Ltd
 # Copyright 2018 New Vector Ltd
+# Copyright 2020 The Matrix.org Foundation C.I.C.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -43,7 +44,8 @@ REQUIREMENTS = [
     "frozendict>=1",
     "unpaddedbase64>=1.1.0",
     "canonicaljson>=1.1.3",
-    "signedjson>=1.0.0",
+    # we use the type definitions added in signedjson 1.1.
+    "signedjson>=1.1.0",
     "pynacl>=1.2.1",
     "idna>=2.5",
     # validating SSL certs for IP addresses requires service_identity 18.1.