diff --git a/homeassistant/components/mastodon/notify.py b/homeassistant/components/mastodon/notify.py
index 8af98ec3ab1..149ef1f6a48 100644
--- a/homeassistant/components/mastodon/notify.py
+++ b/homeassistant/components/mastodon/notify.py
@@ -5,7 +5,7 @@ from __future__ import annotations
 from typing import Any, cast
 
 from mastodon import Mastodon
-from mastodon.Mastodon import MastodonAPIError
+from mastodon.Mastodon import MastodonAPIError, MediaAttachment
 import voluptuous as vol
 
 from homeassistant.components.notify import (
@@ -114,7 +114,7 @@ class MastodonNotificationService(BaseNotificationService):
                     message,
                     visibility=target,
                     spoiler_text=content_warning,
-                    media_ids=mediadata["id"],
+                    media_ids=mediadata.id,
                     sensitive=sensitive,
                 )
             except MastodonAPIError as err:
@@ -134,12 +134,14 @@ class MastodonNotificationService(BaseNotificationService):
                     translation_key="unable_to_send_message",
                 ) from err
 
-    def _upload_media(self, media_path: Any = None) -> Any:
+    def _upload_media(self, media_path: Any = None) -> MediaAttachment:
         """Upload media."""
         with open(media_path, "rb"):
             media_type = get_media_type(media_path)
         try:
-            mediadata = self.client.media_post(media_path, mime_type=media_type)
+            mediadata: MediaAttachment = self.client.media_post(
+                media_path, mime_type=media_type
+            )
         except MastodonAPIError as err:
             raise HomeAssistantError(
                 translation_domain=DOMAIN,
diff --git a/homeassistant/components/mastodon/quality_scale.yaml b/homeassistant/components/mastodon/quality_scale.yaml
index 43636ed6924..f07f7e0a8ad 100644
--- a/homeassistant/components/mastodon/quality_scale.yaml
+++ b/homeassistant/components/mastodon/quality_scale.yaml
@@ -93,7 +93,4 @@ rules:
   # Platinum
   async-dependency: todo
   inject-websession: todo
-  strict-typing:
-    status: todo
-    comment: |
-      Requirement 'Mastodon.py==1.8.1' appears untyped
+  strict-typing: done
diff --git a/homeassistant/components/mastodon/services.py b/homeassistant/components/mastodon/services.py
index 7ab351f8c29..68e95e726a1 100644
--- a/homeassistant/components/mastodon/services.py
+++ b/homeassistant/components/mastodon/services.py
@@ -5,7 +5,7 @@ from functools import partial
 from typing import Any, cast
 
 from mastodon import Mastodon
-from mastodon.Mastodon import MastodonAPIError
+from mastodon.Mastodon import MastodonAPIError, MediaAttachment
 import voluptuous as vol
 
 from homeassistant.config_entries import ConfigEntryState
@@ -104,7 +104,7 @@ def setup_services(hass: HomeAssistant) -> None:
     def _post(client: Mastodon, **kwargs: Any) -> None:
         """Post to Mastodon."""
 
-        media_data: dict[str, Any] | None = None
+        media_data: MediaAttachment | None = None
 
         media_path = kwargs.get("media_path")
         if media_path:
@@ -137,7 +137,7 @@ def setup_services(hass: HomeAssistant) -> None:
         try:
             media_ids: str | None = None
             if media_data:
-                media_ids = media_data["id"]
+                media_ids = media_data.id
             client.status_post(media_ids=media_ids, **kwargs)
         except MastodonAPIError as err:
             raise HomeAssistantError(
diff --git a/tests/components/mastodon/test_services.py b/tests/components/mastodon/test_services.py
index 4dafa9a8e5b..f51d39f8687 100644
--- a/tests/components/mastodon/test_services.py
+++ b/tests/components/mastodon/test_services.py
@@ -2,7 +2,7 @@
 
 from unittest.mock import AsyncMock, Mock, patch
 
-from mastodon.Mastodon import MastodonAPIError
+from mastodon.Mastodon import MastodonAPIError, MediaAttachment
 import pytest
 
 from homeassistant.components.mastodon.const import (
@@ -106,7 +106,9 @@ async def test_service_post(
 
     with (
         patch.object(hass.config, "is_allowed_path", return_value=True),
-        patch.object(mock_mastodon_client, "media_post", return_value={"id": "1"}),
+        patch.object(
+            mock_mastodon_client, "media_post", return_value=MediaAttachment(id="1")
+        ),
     ):
         await hass.services.async_call(
             DOMAIN,
@@ -163,7 +165,7 @@ async def test_post_service_failed(
     await hass.async_block_till_done()
 
     hass.config.is_allowed_path = Mock(return_value=True)
-    mock_mastodon_client.media_post.return_value = {"id": "1"}
+    mock_mastodon_client.media_post.return_value = MediaAttachment(id="1")
 
     mock_mastodon_client.status_post.side_effect = MastodonAPIError