diff --git a/libs/checkpoint-sqlite/langgraph/store/sqlite/base.py b/libs/checkpoint-sqlite/langgraph/store/sqlite/base.py
index 74d6469fd..8d416d374 100644
--- a/libs/checkpoint-sqlite/langgraph/store/sqlite/base.py
+++ b/libs/checkpoint-sqlite/langgraph/store/sqlite/base.py
@@ -3,7 +3,6 @@ from __future__ import annotations
 import concurrent.futures
 import datetime
 import logging
-import math
 import re
 import sqlite3
 import threading