diff --git a/mcp_python/server/__init__.py b/mcp_python/server/__init__.py
index f3183fdb..a9c1744f 100644
--- a/mcp_python/server/__init__.py
+++ b/mcp_python/server/__init__.py
@@ -2,7 +2,7 @@ import contextvars
 import logging
 import warnings
 from collections.abc import Awaitable, Callable
-from typing import Any
+from typing import Any, Sequence
 
 from anyio.streams.memory import MemoryObjectReceiveStream, MemoryObjectSendStream
 from pydantic import AnyUrl
@@ -337,7 +337,7 @@ class Server:
 
         def decorator(
             func: Callable[
-                ..., Awaitable[list[str | types.ImageContent | types.EmbeddedResource]]
+                ..., Awaitable[Sequence[str | types.ImageContent | types.EmbeddedResource]]
             ],
         ):
             logger.debug("Registering handler for CallToolRequest")
diff --git a/uv.lock b/uv.lock
index 27d231dd..54d5cd69 100644
--- a/uv.lock
+++ b/uv.lock
@@ -163,7 +163,7 @@ wheels = [
 
 [[package]]
 name = "mcp-python"
-version = "0.6.0.dev0"
+version = "0.6.1"
 source = { editable = "." }
 dependencies = [
     { name = "anyio" },