diff --git a/src/google/adk/tools/base_tool.py b/src/google/adk/tools/base_tool.py
index 4f9e4f3..60eea5a 100644
--- a/src/google/adk/tools/base_tool.py
+++ b/src/google/adk/tools/base_tool.py
@@ -20,7 +20,6 @@ from typing import Any
 from typing import Optional
 from typing import TYPE_CHECKING
 
-from deprecated import deprecated
 from google.genai import types
 
 from .tool_context import ToolContext