diff --git a/nonebot/message.py b/nonebot/message.py
index 5ac1b91f..47787663 100644
--- a/nonebot/message.py
+++ b/nonebot/message.py
@@ -72,7 +72,7 @@ RUN_POSTPCS_PARAMS = [
 def event_preprocessor(func: T_EventPreProcessor) -> T_EventPreProcessor:
     """事件预处理。装饰一个函数，使它在每次接收到事件并分发给各响应器之前执行。"""
     _event_preprocessors.add(
-        Dependent[None].parse(call=func, allow_types=EVENT_PCS_PARAMS)
+        Dependent[Any].parse(call=func, allow_types=EVENT_PCS_PARAMS)
     )
     return func
 
@@ -80,7 +80,7 @@ def event_preprocessor(func: T_EventPreProcessor) -> T_EventPreProcessor:
 def event_postprocessor(func: T_EventPostProcessor) -> T_EventPostProcessor:
     """事件后处理。装饰一个函数，使它在每次接收到事件并分发给各响应器之后执行。"""
     _event_postprocessors.add(
-        Dependent[None].parse(call=func, allow_types=EVENT_PCS_PARAMS)
+        Dependent[Any].parse(call=func, allow_types=EVENT_PCS_PARAMS)
     )
     return func
 
@@ -88,7 +88,7 @@ def event_postprocessor(func: T_EventPostProcessor) -> T_EventPostProcessor:
 def run_preprocessor(func: T_RunPreProcessor) -> T_RunPreProcessor:
     """运行预处理。装饰一个函数，使它在每次事件响应器运行前执行。"""
     _run_preprocessors.add(
-        Dependent[None].parse(call=func, allow_types=RUN_PREPCS_PARAMS)
+        Dependent[Any].parse(call=func, allow_types=RUN_PREPCS_PARAMS)
     )
     return func
 
@@ -96,7 +96,7 @@ def run_preprocessor(func: T_RunPreProcessor) -> T_RunPreProcessor:
 def run_postprocessor(func: T_RunPostProcessor) -> T_RunPostProcessor:
     """运行后处理。装饰一个函数，使它在每次事件响应器运行后执行。"""
     _run_postprocessors.add(
-        Dependent[None].parse(call=func, allow_types=RUN_POSTPCS_PARAMS)
+        Dependent[Any].parse(call=func, allow_types=RUN_POSTPCS_PARAMS)
     )
     return func