diff --git a/server/server.py b/server/server.py
index 22f7610..c51d992 100644
--- a/server/server.py
+++ b/server/server.py
@@ -2,11 +2,13 @@
 # and warranty status of this software.
 
 import asyncio
+import json
 import logging
 import signal
-import time
 from functools import partial
 
+import aiohttp
+
 from server.db import DB
 from server.rpc import ElectrumRPCServer