diff --git a/src/dexorder/event_handler.py b/src/dexorder/event_handler.py
index 56cc374..eba8dee 100644
--- a/src/dexorder/event_handler.py
+++ b/src/dexorder/event_handler.py
@@ -4,7 +4,7 @@ import logging
 from web3.types import EventData
 
 from dexorder import db, metric, current_w3, timestamp
-from dexorder.accounting import accounting_fill, accounting_placement, accounting_lock
+from dexorder.accounting import accounting_fill, accounting_placement
 from dexorder.base.chain import current_chain
 from dexorder.base.order import TrancheKey, OrderKey
 from dexorder.base.orderlib import SwapOrderState