diff --git a/docs/api-docs/slack_bolt/async_app.html b/docs/api-docs/slack_bolt/async_app.html
index b38ae17bd..1b2710611 100644
--- a/docs/api-docs/slack_bolt/async_app.html
+++ b/docs/api-docs/slack_bolt/async_app.html
@@ -3508,7 +3508,7 @@ <h3>Methods</h3>
     def __init__(self, *, app_name: str, func: Callable[..., Awaitable[bool]], base_logger: Optional[Logger] = None):
         self.app_name = app_name
         self.func = func
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
         self.logger = get_bolt_app_logger(self.app_name, self.func, base_logger)
 
     async def async_matches(self, req: AsyncBoltRequest, resp: BoltResponse) -&gt; bool:
diff --git a/docs/api-docs/slack_bolt/authorization/async_authorize.html b/docs/api-docs/slack_bolt/authorization/async_authorize.html
index c50208335..868271ba4 100644
--- a/docs/api-docs/slack_bolt/authorization/async_authorize.html
+++ b/docs/api-docs/slack_bolt/authorization/async_authorize.html
@@ -26,8 +26,7 @@ <h1 class="title">Module <code>slack_bolt.authorization.async_authorize</code></
 <summary>
 <span>Expand source code</span>
 </summary>
-<pre><code class="python">import inspect
-from logging import Logger
+<pre><code class="python">from logging import Logger
 from typing import Optional, Callable, Awaitable, Dict, Any
 
 from slack_sdk.errors import SlackApiError
@@ -42,6 +41,7 @@ <h1 class="title">Module <code>slack_bolt.authorization.async_authorize</code></
 from slack_bolt.authorization import AuthorizeResult
 from slack_bolt.context.async_context import AsyncBoltContext
 from slack_bolt.error import BoltError
+from slack_bolt.util.utils import get_arg_names_of_callable
 
 
 class AsyncAuthorize:
@@ -70,7 +70,7 @@ <h1 class="title">Module <code>slack_bolt.authorization.async_authorize</code></
     def __init__(self, *, logger: Logger, func: Callable[..., Awaitable[AuthorizeResult]]):
         self.logger = logger
         self.func = func
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
 
     async def __call__(
         self,
@@ -395,7 +395,7 @@ <h3>Subclasses</h3>
     def __init__(self, *, logger: Logger, func: Callable[..., Awaitable[AuthorizeResult]]):
         self.logger = logger
         self.func = func
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
 
     async def __call__(
         self,
diff --git a/docs/api-docs/slack_bolt/authorization/authorize.html b/docs/api-docs/slack_bolt/authorization/authorize.html
index 90fa5d1c0..5e1015260 100644
--- a/docs/api-docs/slack_bolt/authorization/authorize.html
+++ b/docs/api-docs/slack_bolt/authorization/authorize.html
@@ -26,8 +26,7 @@ <h1 class="title">Module <code>slack_bolt.authorization.authorize</code></h1>
 <summary>
 <span>Expand source code</span>
 </summary>
-<pre><code class="python">import inspect
-from logging import Logger
+<pre><code class="python">from logging import Logger
 from typing import Optional, Callable, Dict, Any
 
 from slack_sdk.errors import SlackApiError
@@ -41,6 +40,7 @@ <h1 class="title">Module <code>slack_bolt.authorization.authorize</code></h1>
 from slack_bolt.authorization.authorize_result import AuthorizeResult
 from slack_bolt.context.context import BoltContext
 from slack_bolt.error import BoltError
+from slack_bolt.util.utils import get_arg_names_of_callable
 
 
 class Authorize:
@@ -74,7 +74,7 @@ <h1 class="title">Module <code>slack_bolt.authorization.authorize</code></h1>
     ):
         self.logger = logger
         self.func = func
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
 
     def __call__(
         self,
@@ -400,7 +400,7 @@ <h3>Subclasses</h3>
     ):
         self.logger = logger
         self.func = func
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
 
     def __call__(
         self,
diff --git a/docs/api-docs/slack_bolt/index.html b/docs/api-docs/slack_bolt/index.html
index f3fa8de60..fd7b6c2fc 100644
--- a/docs/api-docs/slack_bolt/index.html
+++ b/docs/api-docs/slack_bolt/index.html
@@ -3771,7 +3771,7 @@ <h3>Methods</h3>
     def __init__(self, *, app_name: str, func: Callable[..., bool], base_logger: Optional[Logger] = None):
         self.app_name = app_name
         self.func = func
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
         self.logger = get_bolt_app_logger(self.app_name, self.func, base_logger)
 
     def matches(self, req: BoltRequest, resp: BoltResponse) -&gt; bool:
diff --git a/docs/api-docs/slack_bolt/lazy_listener/async_internals.html b/docs/api-docs/slack_bolt/lazy_listener/async_internals.html
index 85eb04a93..1c401af9f 100644
--- a/docs/api-docs/slack_bolt/lazy_listener/async_internals.html
+++ b/docs/api-docs/slack_bolt/lazy_listener/async_internals.html
@@ -26,13 +26,13 @@ <h1 class="title">Module <code>slack_bolt.lazy_listener.async_internals</code></
 <summary>
 <span>Expand source code</span>
 </summary>
-<pre><code class="python">import inspect
-from functools import wraps
+<pre><code class="python">from functools import wraps
 from logging import Logger
 from typing import Callable, Awaitable
 
 from slack_bolt.kwargs_injection.async_utils import build_async_required_kwargs
 from slack_bolt.request.async_request import AsyncBoltRequest
+from slack_bolt.util.utils import get_arg_names_of_callable
 
 
 async def to_runnable_function(
@@ -40,7 +40,7 @@ <h1 class="title">Module <code>slack_bolt.lazy_listener.async_internals</code></
     logger: Logger,
     request: AsyncBoltRequest,
 ):
-    arg_names = inspect.getfullargspec(internal_func).args
+    arg_names = get_arg_names_of_callable(internal_func)
 
     @wraps(internal_func)
     async def request_wired_wrapper() -&gt; None:
@@ -81,7 +81,7 @@ <h2 class="section-title" id="header-functions">Functions</h2>
     logger: Logger,
     request: AsyncBoltRequest,
 ):
-    arg_names = inspect.getfullargspec(internal_func).args
+    arg_names = get_arg_names_of_callable(internal_func)
 
     @wraps(internal_func)
     async def request_wired_wrapper() -&gt; None:
diff --git a/docs/api-docs/slack_bolt/lazy_listener/internals.html b/docs/api-docs/slack_bolt/lazy_listener/internals.html
index a9c0d103e..474e0b5f5 100644
--- a/docs/api-docs/slack_bolt/lazy_listener/internals.html
+++ b/docs/api-docs/slack_bolt/lazy_listener/internals.html
@@ -26,13 +26,13 @@ <h1 class="title">Module <code>slack_bolt.lazy_listener.internals</code></h1>
 <summary>
 <span>Expand source code</span>
 </summary>
-<pre><code class="python">import inspect
-from functools import wraps
+<pre><code class="python">from functools import wraps
 from logging import Logger
 from typing import Callable
 
 from slack_bolt.kwargs_injection import build_required_kwargs
 from slack_bolt.request import BoltRequest
+from slack_bolt.util.utils import get_arg_names_of_callable
 
 
 def build_runnable_function(
@@ -40,7 +40,7 @@ <h1 class="title">Module <code>slack_bolt.lazy_listener.internals</code></h1>
     logger: Logger,
     request: BoltRequest,
 ) -&gt; Callable[[], None]:
-    arg_names = inspect.getfullargspec(func).args
+    arg_names = get_arg_names_of_callable(func)
 
     @wraps(func)
     def request_wired_func_wrapper() -&gt; None:
@@ -81,7 +81,7 @@ <h2 class="section-title" id="header-functions">Functions</h2>
     logger: Logger,
     request: BoltRequest,
 ) -&gt; Callable[[], None]:
-    arg_names = inspect.getfullargspec(func).args
+    arg_names = get_arg_names_of_callable(func)
 
     @wraps(func)
     def request_wired_func_wrapper() -&gt; None:
diff --git a/docs/api-docs/slack_bolt/listener/async_listener.html b/docs/api-docs/slack_bolt/listener/async_listener.html
index 4405fb2eb..d863ed52c 100644
--- a/docs/api-docs/slack_bolt/listener/async_listener.html
+++ b/docs/api-docs/slack_bolt/listener/async_listener.html
@@ -34,6 +34,7 @@ <h1 class="title">Module <code>slack_bolt.listener.async_listener</code></h1>
 from slack_bolt.request.async_request import AsyncBoltRequest
 from slack_bolt.response import BoltResponse
 from ..kwargs_injection.async_utils import build_async_required_kwargs
+from ..util.utils import get_arg_names_of_callable
 
 
 class AsyncListener(metaclass=ABCMeta):
@@ -97,7 +98,6 @@ <h1 class="title">Module <code>slack_bolt.listener.async_listener</code></h1>
         raise NotImplementedError()
 
 
-import inspect
 from logging import Logger
 from typing import Callable, Awaitable
 
@@ -135,7 +135,7 @@ <h1 class="title">Module <code>slack_bolt.listener.async_listener</code></h1>
         self.matchers = matchers
         self.middleware = middleware
         self.auto_acknowledgement = auto_acknowledgement
-        self.arg_names = inspect.getfullargspec(ack_function).args
+        self.arg_names = get_arg_names_of_callable(ack_function)
         self.logger = get_bolt_app_logger(app_name, self.ack_function, base_logger)
 
     async def run_ack_function(
@@ -208,7 +208,7 @@ <h2 class="section-title" id="header-classes">Classes</h2>
         self.matchers = matchers
         self.middleware = middleware
         self.auto_acknowledgement = auto_acknowledgement
-        self.arg_names = inspect.getfullargspec(ack_function).args
+        self.arg_names = get_arg_names_of_callable(ack_function)
         self.logger = get_bolt_app_logger(app_name, self.ack_function, base_logger)
 
     async def run_ack_function(
@@ -342,7 +342,7 @@ <h2 id="returns">Returns</h2>
         self.matchers = matchers
         self.middleware = middleware
         self.auto_acknowledgement = auto_acknowledgement
-        self.arg_names = inspect.getfullargspec(ack_function).args
+        self.arg_names = get_arg_names_of_callable(ack_function)
         self.logger = get_bolt_app_logger(app_name, self.ack_function, base_logger)
 
     async def run_ack_function(
diff --git a/docs/api-docs/slack_bolt/listener/async_listener_completion_handler.html b/docs/api-docs/slack_bolt/listener/async_listener_completion_handler.html
index 0abf440e0..4eed51241 100644
--- a/docs/api-docs/slack_bolt/listener/async_listener_completion_handler.html
+++ b/docs/api-docs/slack_bolt/listener/async_listener_completion_handler.html
@@ -26,14 +26,14 @@ <h1 class="title">Module <code>slack_bolt.listener.async_listener_completion_han
 <summary>
 <span>Expand source code</span>
 </summary>
-<pre><code class="python">import inspect
-from abc import ABCMeta, abstractmethod
+<pre><code class="python">from abc import ABCMeta, abstractmethod
 from logging import Logger
 from typing import Callable, Dict, Any, Awaitable, Optional
 
 from slack_bolt.kwargs_injection.async_utils import build_async_required_kwargs
 from slack_bolt.request.async_request import AsyncBoltRequest
 from slack_bolt.response import BoltResponse
+from slack_bolt.util.utils import get_arg_names_of_callable
 
 
 class AsyncListenerCompletionHandler(metaclass=ABCMeta):
@@ -56,7 +56,7 @@ <h1 class="title">Module <code>slack_bolt.listener.async_listener_completion_han
     def __init__(self, logger: Logger, func: Callable[..., Awaitable[None]]):
         self.func = func
         self.logger = logger
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
 
     async def handle(
         self,
@@ -108,7 +108,7 @@ <h2 class="section-title" id="header-classes">Classes</h2>
     def __init__(self, logger: Logger, func: Callable[..., Awaitable[None]]):
         self.func = func
         self.logger = logger
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
 
     async def handle(
         self,
diff --git a/docs/api-docs/slack_bolt/listener/async_listener_error_handler.html b/docs/api-docs/slack_bolt/listener/async_listener_error_handler.html
index 33264c28d..a0eb25ca7 100644
--- a/docs/api-docs/slack_bolt/listener/async_listener_error_handler.html
+++ b/docs/api-docs/slack_bolt/listener/async_listener_error_handler.html
@@ -26,14 +26,14 @@ <h1 class="title">Module <code>slack_bolt.listener.async_listener_error_handler<
 <summary>
 <span>Expand source code</span>
 </summary>
-<pre><code class="python">import inspect
-from abc import ABCMeta, abstractmethod
+<pre><code class="python">from abc import ABCMeta, abstractmethod
 from logging import Logger
 from typing import Callable, Dict, Any, Awaitable, Optional
 
 from slack_bolt.kwargs_injection.async_utils import build_async_required_kwargs
 from slack_bolt.request.async_request import AsyncBoltRequest
 from slack_bolt.response import BoltResponse
+from slack_bolt.util.utils import get_arg_names_of_callable
 
 
 class AsyncListenerErrorHandler(metaclass=ABCMeta):
@@ -58,7 +58,7 @@ <h1 class="title">Module <code>slack_bolt.listener.async_listener_error_handler<
     def __init__(self, logger: Logger, func: Callable[..., Awaitable[Optional[BoltResponse]]]):
         self.func = func
         self.logger = logger
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
 
     async def handle(
         self,
@@ -118,7 +118,7 @@ <h2 class="section-title" id="header-classes">Classes</h2>
     def __init__(self, logger: Logger, func: Callable[..., Awaitable[Optional[BoltResponse]]]):
         self.func = func
         self.logger = logger
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
 
     async def handle(
         self,
diff --git a/docs/api-docs/slack_bolt/listener/async_listener_start_handler.html b/docs/api-docs/slack_bolt/listener/async_listener_start_handler.html
index 5e324498c..cc1ab9b24 100644
--- a/docs/api-docs/slack_bolt/listener/async_listener_start_handler.html
+++ b/docs/api-docs/slack_bolt/listener/async_listener_start_handler.html
@@ -26,14 +26,14 @@ <h1 class="title">Module <code>slack_bolt.listener.async_listener_start_handler<
 <summary>
 <span>Expand source code</span>
 </summary>
-<pre><code class="python">import inspect
-from abc import ABCMeta, abstractmethod
+<pre><code class="python">from abc import ABCMeta, abstractmethod
 from logging import Logger
 from typing import Callable, Dict, Any, Awaitable, Optional
 
 from slack_bolt.kwargs_injection.async_utils import build_async_required_kwargs
 from slack_bolt.request.async_request import AsyncBoltRequest
 from slack_bolt.response import BoltResponse
+from slack_bolt.util.utils import get_arg_names_of_callable
 
 
 class AsyncListenerStartHandler(metaclass=ABCMeta):
@@ -56,7 +56,7 @@ <h1 class="title">Module <code>slack_bolt.listener.async_listener_start_handler<
     def __init__(self, logger: Logger, func: Callable[..., Awaitable[None]]):
         self.func = func
         self.logger = logger
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
 
     async def handle(
         self,
@@ -108,7 +108,7 @@ <h2 class="section-title" id="header-classes">Classes</h2>
     def __init__(self, logger: Logger, func: Callable[..., Awaitable[None]]):
         self.func = func
         self.logger = logger
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
 
     async def handle(
         self,
diff --git a/docs/api-docs/slack_bolt/listener/custom_listener.html b/docs/api-docs/slack_bolt/listener/custom_listener.html
index b5189b432..82acb85ec 100644
--- a/docs/api-docs/slack_bolt/listener/custom_listener.html
+++ b/docs/api-docs/slack_bolt/listener/custom_listener.html
@@ -26,8 +26,7 @@ <h1 class="title">Module <code>slack_bolt.listener.custom_listener</code></h1>
 <summary>
 <span>Expand source code</span>
 </summary>
-<pre><code class="python">import inspect
-from logging import Logger
+<pre><code class="python">from logging import Logger
 from typing import Callable, Optional, Sequence
 
 from slack_bolt.kwargs_injection import build_required_kwargs
@@ -37,6 +36,7 @@ <h1 class="title">Module <code>slack_bolt.listener.custom_listener</code></h1>
 from .listener import Listener
 from ..logger import get_bolt_app_logger
 from ..middleware import Middleware
+from ..util.utils import get_arg_names_of_callable
 
 
 class CustomListener(Listener):
@@ -66,7 +66,7 @@ <h1 class="title">Module <code>slack_bolt.listener.custom_listener</code></h1>
         self.matchers = matchers
         self.middleware = middleware
         self.auto_acknowledgement = auto_acknowledgement
-        self.arg_names = inspect.getfullargspec(ack_function).args
+        self.arg_names = get_arg_names_of_callable(ack_function)
         self.logger = get_bolt_app_logger(app_name, self.ack_function, base_logger)
 
     def run_ack_function(
@@ -132,7 +132,7 @@ <h2 class="section-title" id="header-classes">Classes</h2>
         self.matchers = matchers
         self.middleware = middleware
         self.auto_acknowledgement = auto_acknowledgement
-        self.arg_names = inspect.getfullargspec(ack_function).args
+        self.arg_names = get_arg_names_of_callable(ack_function)
         self.logger = get_bolt_app_logger(app_name, self.ack_function, base_logger)
 
     def run_ack_function(
diff --git a/docs/api-docs/slack_bolt/listener/index.html b/docs/api-docs/slack_bolt/listener/index.html
index ecf569fef..fabdb72c5 100644
--- a/docs/api-docs/slack_bolt/listener/index.html
+++ b/docs/api-docs/slack_bolt/listener/index.html
@@ -153,7 +153,7 @@ <h2 class="section-title" id="header-classes">Classes</h2>
         self.matchers = matchers
         self.middleware = middleware
         self.auto_acknowledgement = auto_acknowledgement
-        self.arg_names = inspect.getfullargspec(ack_function).args
+        self.arg_names = get_arg_names_of_callable(ack_function)
         self.logger = get_bolt_app_logger(app_name, self.ack_function, base_logger)
 
     def run_ack_function(
diff --git a/docs/api-docs/slack_bolt/listener/listener_completion_handler.html b/docs/api-docs/slack_bolt/listener/listener_completion_handler.html
index c24fd0f90..fd0554487 100644
--- a/docs/api-docs/slack_bolt/listener/listener_completion_handler.html
+++ b/docs/api-docs/slack_bolt/listener/listener_completion_handler.html
@@ -26,14 +26,14 @@ <h1 class="title">Module <code>slack_bolt.listener.listener_completion_handler</
 <summary>
 <span>Expand source code</span>
 </summary>
-<pre><code class="python">import inspect
-from abc import ABCMeta, abstractmethod
+<pre><code class="python">from abc import ABCMeta, abstractmethod
 from logging import Logger
 from typing import Callable, Dict, Any, Optional
 
 from slack_bolt.kwargs_injection import build_required_kwargs
 from slack_bolt.request.request import BoltRequest
 from slack_bolt.response.response import BoltResponse
+from slack_bolt.util.utils import get_arg_names_of_callable
 
 
 class ListenerCompletionHandler(metaclass=ABCMeta):
@@ -56,7 +56,7 @@ <h1 class="title">Module <code>slack_bolt.listener.listener_completion_handler</
     def __init__(self, logger: Logger, func: Callable[..., None]):
         self.func = func
         self.logger = logger
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
 
     def handle(
         self,
@@ -108,7 +108,7 @@ <h2 class="section-title" id="header-classes">Classes</h2>
     def __init__(self, logger: Logger, func: Callable[..., None]):
         self.func = func
         self.logger = logger
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
 
     def handle(
         self,
diff --git a/docs/api-docs/slack_bolt/listener/listener_error_handler.html b/docs/api-docs/slack_bolt/listener/listener_error_handler.html
index 27a3646bf..4e7ae6f5c 100644
--- a/docs/api-docs/slack_bolt/listener/listener_error_handler.html
+++ b/docs/api-docs/slack_bolt/listener/listener_error_handler.html
@@ -26,14 +26,14 @@ <h1 class="title">Module <code>slack_bolt.listener.listener_error_handler</code>
 <summary>
 <span>Expand source code</span>
 </summary>
-<pre><code class="python">import inspect
-from abc import ABCMeta, abstractmethod
+<pre><code class="python">from abc import ABCMeta, abstractmethod
 from logging import Logger
 from typing import Callable, Dict, Any, Optional
 
 from slack_bolt.kwargs_injection import build_required_kwargs
 from slack_bolt.request.request import BoltRequest
 from slack_bolt.response.response import BoltResponse
+from slack_bolt.util.utils import get_arg_names_of_callable
 
 
 class ListenerErrorHandler(metaclass=ABCMeta):
@@ -58,7 +58,7 @@ <h1 class="title">Module <code>slack_bolt.listener.listener_error_handler</code>
     def __init__(self, logger: Logger, func: Callable[..., Optional[BoltResponse]]):
         self.func = func
         self.logger = logger
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
 
     def handle(
         self,
@@ -118,7 +118,7 @@ <h2 class="section-title" id="header-classes">Classes</h2>
     def __init__(self, logger: Logger, func: Callable[..., Optional[BoltResponse]]):
         self.func = func
         self.logger = logger
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
 
     def handle(
         self,
diff --git a/docs/api-docs/slack_bolt/listener/listener_start_handler.html b/docs/api-docs/slack_bolt/listener/listener_start_handler.html
index b2371ae67..b02b3e332 100644
--- a/docs/api-docs/slack_bolt/listener/listener_start_handler.html
+++ b/docs/api-docs/slack_bolt/listener/listener_start_handler.html
@@ -26,14 +26,14 @@ <h1 class="title">Module <code>slack_bolt.listener.listener_start_handler</code>
 <summary>
 <span>Expand source code</span>
 </summary>
-<pre><code class="python">import inspect
-from abc import ABCMeta, abstractmethod
+<pre><code class="python">from abc import ABCMeta, abstractmethod
 from logging import Logger
 from typing import Callable, Dict, Any, Optional
 
 from slack_bolt.kwargs_injection import build_required_kwargs
 from slack_bolt.request.request import BoltRequest
 from slack_bolt.response.response import BoltResponse
+from slack_bolt.util.utils import get_arg_names_of_callable
 
 
 class ListenerStartHandler(metaclass=ABCMeta):
@@ -60,7 +60,7 @@ <h1 class="title">Module <code>slack_bolt.listener.listener_start_handler</code>
     def __init__(self, logger: Logger, func: Callable[..., None]):
         self.func = func
         self.logger = logger
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
 
     def handle(
         self,
@@ -112,7 +112,7 @@ <h2 class="section-title" id="header-classes">Classes</h2>
     def __init__(self, logger: Logger, func: Callable[..., None]):
         self.func = func
         self.logger = logger
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
 
     def handle(
         self,
diff --git a/docs/api-docs/slack_bolt/listener_matcher/async_listener_matcher.html b/docs/api-docs/slack_bolt/listener_matcher/async_listener_matcher.html
index 8d50a12e3..9405e2bfc 100644
--- a/docs/api-docs/slack_bolt/listener_matcher/async_listener_matcher.html
+++ b/docs/api-docs/slack_bolt/listener_matcher/async_listener_matcher.html
@@ -30,6 +30,7 @@ <h1 class="title">Module <code>slack_bolt.listener_matcher.async_listener_matche
 
 from slack_bolt.request.async_request import AsyncBoltRequest
 from slack_bolt.response import BoltResponse
+from slack_bolt.util.utils import get_arg_names_of_callable
 
 
 class AsyncListenerMatcher(metaclass=ABCMeta):
@@ -47,7 +48,6 @@ <h1 class="title">Module <code>slack_bolt.listener_matcher.async_listener_matche
         raise NotImplementedError()
 
 
-import inspect
 from logging import Logger
 from typing import Callable, Awaitable, Sequence, Optional
 
@@ -66,7 +66,7 @@ <h1 class="title">Module <code>slack_bolt.listener_matcher.async_listener_matche
     def __init__(self, *, app_name: str, func: Callable[..., Awaitable[bool]], base_logger: Optional[Logger] = None):
         self.app_name = app_name
         self.func = func
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
         self.logger = get_bolt_app_logger(self.app_name, self.func, base_logger)
 
     async def async_matches(self, req: AsyncBoltRequest, resp: BoltResponse) -&gt; bool:
@@ -116,7 +116,7 @@ <h2 class="section-title" id="header-classes">Classes</h2>
     def __init__(self, *, app_name: str, func: Callable[..., Awaitable[bool]], base_logger: Optional[Logger] = None):
         self.app_name = app_name
         self.func = func
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
         self.logger = get_bolt_app_logger(self.app_name, self.func, base_logger)
 
     async def async_matches(self, req: AsyncBoltRequest, resp: BoltResponse) -&gt; bool:
@@ -206,7 +206,7 @@ <h2 id="returns">Returns</h2>
     def __init__(self, *, app_name: str, func: Callable[..., Awaitable[bool]], base_logger: Optional[Logger] = None):
         self.app_name = app_name
         self.func = func
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
         self.logger = get_bolt_app_logger(self.app_name, self.func, base_logger)
 
     async def async_matches(self, req: AsyncBoltRequest, resp: BoltResponse) -&gt; bool:
diff --git a/docs/api-docs/slack_bolt/listener_matcher/builtins.html b/docs/api-docs/slack_bolt/listener_matcher/builtins.html
index 2d6872ee4..40ff38194 100644
--- a/docs/api-docs/slack_bolt/listener_matcher/builtins.html
+++ b/docs/api-docs/slack_bolt/listener_matcher/builtins.html
@@ -27,7 +27,6 @@ <h1 class="title">Module <code>slack_bolt.listener_matcher.builtins</code></h1>
 <span>Expand source code</span>
 </summary>
 <pre><code class="python"># pytype: skip-file
-import inspect
 import re
 import sys
 from logging import Logger
@@ -52,6 +51,7 @@ <h1 class="title">Module <code>slack_bolt.listener_matcher.builtins</code></h1>
     is_workflow_step_save,
 )
 from ..logger.messages import error_message_event_type
+from ..util.utils import get_arg_names_of_callable
 
 if sys.version_info.major == 3 and sys.version_info.minor &lt;= 6:
     from re import _pattern_type as Pattern
@@ -75,7 +75,7 @@ <h1 class="title">Module <code>slack_bolt.listener_matcher.builtins</code></h1>
         base_logger: Optional[Logger] = None,
     ):
         self.func = func
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
         self.logger = get_bolt_logger(self.func, base_logger)
 
     def matches(self, req: BoltRequest, resp: BoltResponse) -&gt; bool:
@@ -1113,7 +1113,7 @@ <h2 class="section-title" id="header-classes">Classes</h2>
         base_logger: Optional[Logger] = None,
     ):
         self.func = func
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
         self.logger = get_bolt_logger(self.func, base_logger)
 
     def matches(self, req: BoltRequest, resp: BoltResponse) -&gt; bool:
diff --git a/docs/api-docs/slack_bolt/listener_matcher/custom_listener_matcher.html b/docs/api-docs/slack_bolt/listener_matcher/custom_listener_matcher.html
index a55347b25..4e286a6d5 100644
--- a/docs/api-docs/slack_bolt/listener_matcher/custom_listener_matcher.html
+++ b/docs/api-docs/slack_bolt/listener_matcher/custom_listener_matcher.html
@@ -26,8 +26,7 @@ <h1 class="title">Module <code>slack_bolt.listener_matcher.custom_listener_match
 <summary>
 <span>Expand source code</span>
 </summary>
-<pre><code class="python">import inspect
-from logging import Logger
+<pre><code class="python">from logging import Logger
 from typing import Callable, Sequence, Optional
 
 from slack_bolt.kwargs_injection import build_required_kwargs
@@ -35,6 +34,7 @@ <h1 class="title">Module <code>slack_bolt.listener_matcher.custom_listener_match
 from slack_bolt.request import BoltRequest
 from slack_bolt.response import BoltResponse
 from .listener_matcher import ListenerMatcher
+from ..util.utils import get_arg_names_of_callable
 
 
 class CustomListenerMatcher(ListenerMatcher):
@@ -46,7 +46,7 @@ <h1 class="title">Module <code>slack_bolt.listener_matcher.custom_listener_match
     def __init__(self, *, app_name: str, func: Callable[..., bool], base_logger: Optional[Logger] = None):
         self.app_name = app_name
         self.func = func
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
         self.logger = get_bolt_app_logger(self.app_name, self.func, base_logger)
 
     def matches(self, req: BoltRequest, resp: BoltResponse) -&gt; bool:
@@ -89,7 +89,7 @@ <h2 class="section-title" id="header-classes">Classes</h2>
     def __init__(self, *, app_name: str, func: Callable[..., bool], base_logger: Optional[Logger] = None):
         self.app_name = app_name
         self.func = func
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
         self.logger = get_bolt_app_logger(self.app_name, self.func, base_logger)
 
     def matches(self, req: BoltRequest, resp: BoltResponse) -&gt; bool:
diff --git a/docs/api-docs/slack_bolt/listener_matcher/index.html b/docs/api-docs/slack_bolt/listener_matcher/index.html
index 45bad8ca0..ff90a64f7 100644
--- a/docs/api-docs/slack_bolt/listener_matcher/index.html
+++ b/docs/api-docs/slack_bolt/listener_matcher/index.html
@@ -102,7 +102,7 @@ <h2 class="section-title" id="header-classes">Classes</h2>
     def __init__(self, *, app_name: str, func: Callable[..., bool], base_logger: Optional[Logger] = None):
         self.app_name = app_name
         self.func = func
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
         self.logger = get_bolt_app_logger(self.app_name, self.func, base_logger)
 
     def matches(self, req: BoltRequest, resp: BoltResponse) -&gt; bool:
diff --git a/docs/api-docs/slack_bolt/middleware/async_custom_middleware.html b/docs/api-docs/slack_bolt/middleware/async_custom_middleware.html
index 6f8247528..f3909b5db 100644
--- a/docs/api-docs/slack_bolt/middleware/async_custom_middleware.html
+++ b/docs/api-docs/slack_bolt/middleware/async_custom_middleware.html
@@ -35,7 +35,7 @@ <h1 class="title">Module <code>slack_bolt.middleware.async_custom_middleware</co
 from slack_bolt.request.async_request import AsyncBoltRequest
 from slack_bolt.response import BoltResponse
 from .async_middleware import AsyncMiddleware
-from slack_bolt.util.utils import get_name_for_callable
+from slack_bolt.util.utils import get_name_for_callable, get_arg_names_of_callable
 
 
 class AsyncCustomMiddleware(AsyncMiddleware):
@@ -57,7 +57,7 @@ <h1 class="title">Module <code>slack_bolt.middleware.async_custom_middleware</co
         else:
             raise ValueError(&#34;Async middleware function must be an async function&#34;)
 
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
         self.logger = get_bolt_app_logger(self.app_name, self.func, base_logger)
 
     async def async_process(
@@ -124,7 +124,7 @@ <h2 class="section-title" id="header-classes">Classes</h2>
         else:
             raise ValueError(&#34;Async middleware function must be an async function&#34;)
 
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
         self.logger = get_bolt_app_logger(self.app_name, self.func, base_logger)
 
     async def async_process(
diff --git a/docs/api-docs/slack_bolt/middleware/async_middleware_error_handler.html b/docs/api-docs/slack_bolt/middleware/async_middleware_error_handler.html
index b360ffe44..f7992f0e3 100644
--- a/docs/api-docs/slack_bolt/middleware/async_middleware_error_handler.html
+++ b/docs/api-docs/slack_bolt/middleware/async_middleware_error_handler.html
@@ -26,14 +26,14 @@ <h1 class="title">Module <code>slack_bolt.middleware.async_middleware_error_hand
 <summary>
 <span>Expand source code</span>
 </summary>
-<pre><code class="python">import inspect
-from abc import ABCMeta, abstractmethod
+<pre><code class="python">from abc import ABCMeta, abstractmethod
 from logging import Logger
 from typing import Callable, Dict, Any, Awaitable, Optional
 
 from slack_bolt.kwargs_injection.async_utils import build_async_required_kwargs
 from slack_bolt.request.async_request import AsyncBoltRequest
 from slack_bolt.response import BoltResponse
+from slack_bolt.util.utils import get_arg_names_of_callable
 
 
 class AsyncMiddlewareErrorHandler(metaclass=ABCMeta):
@@ -58,7 +58,7 @@ <h1 class="title">Module <code>slack_bolt.middleware.async_middleware_error_hand
     def __init__(self, logger: Logger, func: Callable[..., Awaitable[Optional[BoltResponse]]]):
         self.func = func
         self.logger = logger
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
 
     async def handle(
         self,
@@ -118,7 +118,7 @@ <h2 class="section-title" id="header-classes">Classes</h2>
     def __init__(self, logger: Logger, func: Callable[..., Awaitable[Optional[BoltResponse]]]):
         self.func = func
         self.logger = logger
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
 
     async def handle(
         self,
diff --git a/docs/api-docs/slack_bolt/middleware/custom_middleware.html b/docs/api-docs/slack_bolt/middleware/custom_middleware.html
index 0f1972157..17abf683f 100644
--- a/docs/api-docs/slack_bolt/middleware/custom_middleware.html
+++ b/docs/api-docs/slack_bolt/middleware/custom_middleware.html
@@ -26,8 +26,7 @@ <h1 class="title">Module <code>slack_bolt.middleware.custom_middleware</code></h
 <summary>
 <span>Expand source code</span>
 </summary>
-<pre><code class="python">import inspect
-from logging import Logger
+<pre><code class="python">from logging import Logger
 from typing import Callable, Any, Sequence, Optional
 
 from slack_bolt.kwargs_injection import build_required_kwargs
@@ -35,7 +34,7 @@ <h1 class="title">Module <code>slack_bolt.middleware.custom_middleware</code></h
 from slack_bolt.request import BoltRequest
 from slack_bolt.response import BoltResponse
 from .middleware import Middleware
-from slack_bolt.util.utils import get_name_for_callable
+from slack_bolt.util.utils import get_name_for_callable, get_arg_names_of_callable
 
 
 class CustomMiddleware(Middleware):
@@ -47,7 +46,7 @@ <h1 class="title">Module <code>slack_bolt.middleware.custom_middleware</code></h
     def __init__(self, *, app_name: str, func: Callable, base_logger: Optional[Logger] = None):
         self.app_name = app_name
         self.func = func
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
         self.logger = get_bolt_app_logger(self.app_name, self.func, base_logger)
 
     def process(
@@ -104,7 +103,7 @@ <h2 class="section-title" id="header-classes">Classes</h2>
     def __init__(self, *, app_name: str, func: Callable, base_logger: Optional[Logger] = None):
         self.app_name = app_name
         self.func = func
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
         self.logger = get_bolt_app_logger(self.app_name, self.func, base_logger)
 
     def process(
diff --git a/docs/api-docs/slack_bolt/middleware/index.html b/docs/api-docs/slack_bolt/middleware/index.html
index 0e39f71f0..dfd0ba795 100644
--- a/docs/api-docs/slack_bolt/middleware/index.html
+++ b/docs/api-docs/slack_bolt/middleware/index.html
@@ -157,7 +157,7 @@ <h2 class="section-title" id="header-classes">Classes</h2>
     def __init__(self, *, app_name: str, func: Callable, base_logger: Optional[Logger] = None):
         self.app_name = app_name
         self.func = func
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
         self.logger = get_bolt_app_logger(self.app_name, self.func, base_logger)
 
     def process(
diff --git a/docs/api-docs/slack_bolt/middleware/middleware_error_handler.html b/docs/api-docs/slack_bolt/middleware/middleware_error_handler.html
index 69af19c6e..03c51e1e3 100644
--- a/docs/api-docs/slack_bolt/middleware/middleware_error_handler.html
+++ b/docs/api-docs/slack_bolt/middleware/middleware_error_handler.html
@@ -26,14 +26,14 @@ <h1 class="title">Module <code>slack_bolt.middleware.middleware_error_handler</c
 <summary>
 <span>Expand source code</span>
 </summary>
-<pre><code class="python">import inspect
-from abc import ABCMeta, abstractmethod
+<pre><code class="python">from abc import ABCMeta, abstractmethod
 from logging import Logger
 from typing import Callable, Optional, Any, Dict
 
 from slack_bolt.kwargs_injection.utils import build_required_kwargs
 from slack_bolt.request.request import BoltRequest
 from slack_bolt.response.response import BoltResponse
+from slack_bolt.util.utils import get_arg_names_of_callable
 
 
 class MiddlewareErrorHandler(metaclass=ABCMeta):
@@ -58,7 +58,7 @@ <h1 class="title">Module <code>slack_bolt.middleware.middleware_error_handler</c
     def __init__(self, logger: Logger, func: Callable[..., Optional[BoltResponse]]):
         self.func = func
         self.logger = logger
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
 
     def handle(
         self,
@@ -118,7 +118,7 @@ <h2 class="section-title" id="header-classes">Classes</h2>
     def __init__(self, logger: Logger, func: Callable[..., Optional[BoltResponse]]):
         self.func = func
         self.logger = logger
-        self.arg_names = inspect.getfullargspec(func).args
+        self.arg_names = get_arg_names_of_callable(func)
 
     def handle(
         self,
diff --git a/docs/api-docs/slack_bolt/util/utils.html b/docs/api-docs/slack_bolt/util/utils.html
index ab7a803e9..8ee747aff 100644
--- a/docs/api-docs/slack_bolt/util/utils.html
+++ b/docs/api-docs/slack_bolt/util/utils.html
@@ -27,9 +27,10 @@ <h1 class="title">Module <code>slack_bolt.util.utils</code></h1>
 <span>Expand source code</span>
 </summary>
 <pre><code class="python">import copy
+import inspect
 import sys
 from logging import Logger
-from typing import Optional, Union, Dict, Any, Sequence, Callable
+from typing import Optional, Union, Dict, Any, Sequence, Callable, List
 
 from slack_sdk import WebClient
 from slack_sdk.models import JsonObject
@@ -110,7 +111,11 @@ <h1 class="title">Module <code>slack_bolt.util.utils</code></h1>
     if hasattr(func, &#34;__name__&#34;):
         return func.__name__
     else:
-        return f&#34;{func.__class__.__module__}.{func.__class__.__name__}&#34;</code></pre>
+        return f&#34;{func.__class__.__module__}.{func.__class__.__name__}&#34;
+
+
+def get_arg_names_of_callable(func: Callable) -&gt; List[str]:
+    return inspect.getfullargspec(inspect.unwrap(func)).args</code></pre>
 </details>
 </section>
 <section>
@@ -192,6 +197,19 @@ <h2 class="section-title" id="header-functions">Functions</h2>
     )</code></pre>
 </details>
 </dd>
+<dt id="slack_bolt.util.utils.get_arg_names_of_callable"><code class="name flex">
+<span>def <span class="ident">get_arg_names_of_callable</span></span>(<span>func: Callable) ‑> List[str]</span>
+</code></dt>
+<dd>
+<div class="desc"></div>
+<details class="source">
+<summary>
+<span>Expand source code</span>
+</summary>
+<pre><code class="python">def get_arg_names_of_callable(func: Callable) -&gt; List[str]:
+    return inspect.getfullargspec(inspect.unwrap(func)).args</code></pre>
+</details>
+</dd>
 <dt id="slack_bolt.util.utils.get_boot_message"><code class="name flex">
 <span>def <span class="ident">get_boot_message</span></span>(<span>development_server: bool = False) ‑> str</span>
 </code></dt>
@@ -278,6 +296,7 @@ <h1>Index</h1>
 <li><code><a title="slack_bolt.util.utils.convert_to_dict_list" href="#slack_bolt.util.utils.convert_to_dict_list">convert_to_dict_list</a></code></li>
 <li><code><a title="slack_bolt.util.utils.create_copy" href="#slack_bolt.util.utils.create_copy">create_copy</a></code></li>
 <li><code><a title="slack_bolt.util.utils.create_web_client" href="#slack_bolt.util.utils.create_web_client">create_web_client</a></code></li>
+<li><code><a title="slack_bolt.util.utils.get_arg_names_of_callable" href="#slack_bolt.util.utils.get_arg_names_of_callable">get_arg_names_of_callable</a></code></li>
 <li><code><a title="slack_bolt.util.utils.get_boot_message" href="#slack_bolt.util.utils.get_boot_message">get_boot_message</a></code></li>
 <li><code><a title="slack_bolt.util.utils.get_name_for_callable" href="#slack_bolt.util.utils.get_name_for_callable">get_name_for_callable</a></code></li>
 </ul>
diff --git a/docs/api-docs/slack_bolt/version.html b/docs/api-docs/slack_bolt/version.html
index 1a48de11e..75a2a0f0f 100644
--- a/docs/api-docs/slack_bolt/version.html
+++ b/docs/api-docs/slack_bolt/version.html
@@ -28,7 +28,7 @@ <h1 class="title">Module <code>slack_bolt.version</code></h1>
 <span>Expand source code</span>
 </summary>
 <pre><code class="python">&#34;&#34;&#34;Check the latest version at https://pypi.org/project/slack-bolt/&#34;&#34;&#34;
-__version__ = &#34;1.14.2&#34;</code></pre>
+__version__ = &#34;1.14.3&#34;</code></pre>
 </details>
 </section>
 <section>
diff --git a/slack_bolt/version.py b/slack_bolt/version.py
index 9cdf170e0..791e71404 100644
--- a/slack_bolt/version.py
+++ b/slack_bolt/version.py
@@ -1,2 +1,2 @@
 """Check the latest version at https://pypi.org/project/slack-bolt/"""
-__version__ = "1.14.2"
+__version__ = "1.14.3"