diff --git a/src/core/database.py b/src/core/database.py
index 47578ea..94ffbc0 100644
--- a/src/core/database.py
+++ b/src/core/database.py
@@ -4,7 +4,7 @@ import logging
 import json
 import random
 from pathlib import Path
-from typing import Optional, Dict, Any, Union
+from typing import Optional, Dict, Any, List, Union
 import threading
 import sys
 from src.core.utils import parse_snowflake
diff --git a/src/core/state.py b/src/core/state.py
index eb816c5..7388c40 100644
--- a/src/core/state.py
+++ b/src/core/state.py
@@ -232,7 +232,7 @@ class MigrationState:
         return None
         
 
-    def get_global_min_last_message_id(self, all_mapped_ids: List[str]) -> int | None:
+    def get_global_min_last_message_id(self, all_mapped_ids: list[str]) -> int | None:
         """Returns the absolute minimum last_msg_id among the given list of mapped target IDs (channels and threads)."""
         if self._ensure_db():
             return self.db.get_global_min_last_message_id(all_mapped_ids)