diff --git a/pkg/core/entities.py b/pkg/core/entities.py
index dbaa5ff..67b0566 100644
--- a/pkg/core/entities.py
+++ b/pkg/core/entities.py
@@ -110,7 +110,7 @@ class Session(pydantic.BaseModel):
 
     using_conversation: typing.Optional[Conversation] = None
 
-    conversations: typing.Optional[list[Conversation]] = []
+    conversations: typing.Optional[list[Conversation]] = pydantic.Field(default_factory=list)
 
     create_time: typing.Optional[datetime.datetime] = pydantic.Field(default_factory=datetime.datetime.now)
 
diff --git a/pkg/platform/manager.py b/pkg/platform/manager.py
index d46e5b8..aed8def 100644
--- a/pkg/platform/manager.py
+++ b/pkg/platform/manager.py
@@ -2,6 +2,7 @@ from __future__ import annotations
 
 import json
 import os
+import sys
 import logging
 import asyncio
 import traceback
@@ -15,6 +16,10 @@ from .types import message as platform_message
 from .types import events as platform_events
 from .types import entities as platform_entities
 
+# 处理 3.4 移除了 YiriMirai 之后，插件的兼容性问题
+from . import types as mirai
+sys.modules['mirai'] = mirai
+
 
 # 控制QQ消息输入输出的类
 class PlatformManager: