diff --git a/nonebot/plugin/__init__.py b/nonebot/plugin/__init__.py
index b9ed77ed..bd9fec3d 100644
--- a/nonebot/plugin/__init__.py
+++ b/nonebot/plugin/__init__.py
@@ -489,7 +489,7 @@ def on_shell_command(cmd: Union[str, Tuple[str, ...]],
 
 def on_regex(pattern: str,
              flags: Union[int, re.RegexFlag] = 0,
-             rule: Optional[Rule] = None,
+             rule: Optional[Union[Rule, T_RuleChecker]] = None,
              **kwargs) -> Type[Matcher]:
     """
     :说明:
diff --git a/nonebot/plugin/__init__.pyi b/nonebot/plugin/__init__.pyi
index 02cc6b96..d99e96e1 100644
--- a/nonebot/plugin/__init__.pyi
+++ b/nonebot/plugin/__init__.pyi
@@ -156,7 +156,7 @@ def on_shell_command(cmd: Union[str, Tuple[str, ...]],
 
 def on_regex(pattern: str,
              flags: Union[int, re.RegexFlag] = 0,
-             rule: Optional[Rule] = ...,
+             rule: Optional[Union[Rule, T_RuleChecker]] = ...,
              *,
              permission: Optional[Permission] = ...,
              handlers: Optional[List[T_Handler]] = ...,
@@ -409,7 +409,7 @@ class MatcherGroup:
             pattern: str,
             flags: Union[int, re.RegexFlag] = 0,
             *,
-            rule: Optional[Rule] = ...,
+            rule: Optional[Union[Rule, T_RuleChecker]] = ...,
             permission: Optional[Permission] = ...,
             handlers: Optional[List[T_Handler]] = ...,
             temp: bool = ...,