diff --git a/synapse/rest/client/v2_alpha/password_policy.py b/synapse/rest/client/v2_alpha/password_policy.py
index 1505cff756..d6e00de12c 100644
--- a/synapse/rest/client/v2_alpha/password_policy.py
+++ b/synapse/rest/client/v2_alpha/password_policy.py
@@ -15,8 +15,6 @@
 
 import logging
 
-from twisted.internet import defer
-
 from synapse.http.servlet import RestServlet
 
 from ._base import client_v2_patterns