diff --git a/.strict-typing b/.strict-typing
index 2adadffea49..97e3f577849 100644
--- a/.strict-typing
+++ b/.strict-typing
@@ -361,6 +361,7 @@ homeassistant.components.webostv.*
 homeassistant.components.websocket_api.*
 homeassistant.components.wemo.*
 homeassistant.components.whois.*
+homeassistant.components.withings.*
 homeassistant.components.wiz.*
 homeassistant.components.wled.*
 homeassistant.components.worldclock.*
diff --git a/homeassistant/components/withings/__init__.py b/homeassistant/components/withings/__init__.py
index 9084d80e5c5..ba58ee650be 100644
--- a/homeassistant/components/withings/__init__.py
+++ b/homeassistant/components/withings/__init__.py
@@ -8,7 +8,7 @@ import asyncio
 from collections.abc import Awaitable, Callable
 import contextlib
 from datetime import timedelta
-from typing import Any
+from typing import TYPE_CHECKING, Any
 
 from aiohttp.hdrs import METH_POST
 from aiohttp.web import Request, Response
@@ -148,7 +148,10 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
 
     async def _refresh_token() -> str:
         await oauth_session.async_ensure_token_valid()
-        return oauth_session.token[CONF_ACCESS_TOKEN]
+        token = oauth_session.token[CONF_ACCESS_TOKEN]
+        if TYPE_CHECKING:
+            assert isinstance(token, str)
+        return token
 
     client.refresh_token_function = _refresh_token
     coordinators: dict[str, WithingsDataUpdateCoordinator] = {
diff --git a/mypy.ini b/mypy.ini
index 93fe5326e98..43ec39ebc56 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -3373,6 +3373,16 @@ disallow_untyped_defs = true
 warn_return_any = true
 warn_unreachable = true
 
+[mypy-homeassistant.components.withings.*]
+check_untyped_defs = true
+disallow_incomplete_defs = true
+disallow_subclassing_any = true
+disallow_untyped_calls = true
+disallow_untyped_decorators = true
+disallow_untyped_defs = true
+warn_return_any = true
+warn_unreachable = true
+
 [mypy-homeassistant.components.wiz.*]
 check_untyped_defs = true
 disallow_incomplete_defs = true