1 files changed, 2 insertions, 1 deletions
diff --git a/synapse/python_dependencies.py b/synapse/python_dependencies.py
index cdcbdd772b..154e5b7028 100644
--- a/synapse/python_dependencies.py
+++ b/synapse/python_dependencies.py
@@ -48,7 +48,8 @@ logger = logging.getLogger(__name__)
 # [1] https://pip.pypa.io/en/stable/reference/pip_install/#requirement-specifiers.
 
 REQUIREMENTS = [
-    "jsonschema>=2.5.1",
+    # we use the TYPE_CHECKER.redefine method added in jsonschema 3.0.0
+    "jsonschema>=3.0.0",
     "frozendict>=1",
     "unpaddedbase64>=1.1.0",
     "canonicaljson>=1.4.0",