1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/python_dependencies.py b/synapse/python_dependencies.py
index 7dfa78dadb..9692f0bf75 100644
--- a/synapse/python_dependencies.py
+++ b/synapse/python_dependencies.py
@@ -67,7 +67,7 @@ REQUIREMENTS = [
     "pymacaroons>=0.13.0",
     "msgpack>=0.5.0",
     "phonenumbers>=8.2.0",
-    "six>=1.10",
+    "six>=1.12",
     # prometheus_client 0.4.0 changed the format of counter metrics
     # (cf https://github.com/matrix-org/synapse/issues/4001)
     "prometheus_client>=0.0.18,<0.4.0",