diff --git a/cozepy/version.py b/cozepy/version.py
index 7ef0015..85b8eb1 100644
--- a/cozepy/version.py
+++ b/cozepy/version.py
@@ -3,7 +3,7 @@
 import sys
 from functools import lru_cache
 
-VERSION = "0.9.0"
+VERSION = "0.9.1"
 
 
 def get_os_version() -> str:
diff --git a/cozepy/workflows/chat/__init__.py b/cozepy/workflows/chat/__init__.py
index 4ce21a1..b58701b 100644
--- a/cozepy/workflows/chat/__init__.py
+++ b/cozepy/workflows/chat/__init__.py
@@ -1,4 +1,4 @@
-from typing import AsyncIterator, Dict, List, Optional
+from typing import Any, AsyncIterator, Dict, List, Optional
 
 from cozepy.auth import Auth
 from cozepy.chat import (
@@ -23,7 +23,7 @@ def stream(
         *,
         workflow_id: str,
         additional_messages: Optional[List[Message]] = None,
-        parameters: Optional[Dict[str, str]] = None,
+        parameters: Optional[Dict[str, Any]] = None,
         app_id: Optional[str] = None,
         bot_id: Optional[str] = None,
         conversation_id: Optional[str] = None,
@@ -62,7 +62,7 @@ def _create(
         *,
         workflow_id: str,
         additional_messages: Optional[List[Message]] = None,
-        parameters: Optional[Dict[str, str]] = None,
+        parameters: Optional[Dict[str, Any]] = None,
         app_id: Optional[str] = None,
         bot_id: Optional[str] = None,
         conversation_id: Optional[str] = None,
@@ -109,7 +109,7 @@ async def stream(
         *,
         workflow_id: str,
         additional_messages: Optional[List[Message]] = None,
-        parameters: Optional[Dict[str, str]] = None,
+        parameters: Optional[Dict[str, Any]] = None,
         app_id: Optional[str] = None,
         bot_id: Optional[str] = None,
         conversation_id: Optional[str] = None,
@@ -149,7 +149,7 @@ async def _create(
         *,
         workflow_id: str,
         additional_messages: Optional[List[Message]] = None,
-        parameters: Optional[Dict[str, str]] = None,
+        parameters: Optional[Dict[str, Any]] = None,
         app_id: Optional[str] = None,
         bot_id: Optional[str] = None,
         conversation_id: Optional[str] = None,
diff --git a/pyproject.toml b/pyproject.toml
index ead873d..1aa09c7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "cozepy"
-version = "0.9.0"
+version = "0.9.1"
 description = "OpenAPI SDK for Coze(coze.com/coze.cn)"
 authors = ["chyroc <chyroc@bytedance.com>"]
 readme = "README.md"