diff --git a/src/utils/observer.py b/src/utils/observer.py
index 06ad8bb..0c90fb5 100644
--- a/src/utils/observer.py
+++ b/src/utils/observer.py
@@ -1,7 +1,7 @@
 from abc import ABC, abstractmethod
 from enum import Enum
 from threading import Thread
-from typing import Callable, Iterable, Mapping, Optional, Set, Any
+from typing import Callable, Optional, Set, Any
 
 
 class Status(Enum):