diff --git a/app/javascript/mastodon/actions/notification_groups.ts b/app/javascript/mastodon/actions/notification_groups.ts
index ccd5d3bf71..34e62054c6 100644
--- a/app/javascript/mastodon/actions/notification_groups.ts
+++ b/app/javascript/mastodon/actions/notification_groups.ts
@@ -1,8 +1,8 @@
 import { apiFetchNotifications } from 'mastodon/api/notifications';
 import type { ApiAccountJSON } from 'mastodon/api_types/accounts';
 import type {
-  NotificationGroupJSON,
-  NotificationJSON,
+  ApiNotificationGroupJSON,
+  ApiNotificationJSON,
 } from 'mastodon/api_types/notifications';
 import { allNotificationTypes } from 'mastodon/api_types/notifications';
 import type { ApiStatusJSON } from 'mastodon/api_types/statuses';
@@ -27,7 +27,7 @@ function excludeAllTypesExcept(filter: string) {
 
 function dispatchAssociatedRecords(
   dispatch: AppDispatch,
-  notifications: NotificationGroupJSON[] | NotificationJSON[],
+  notifications: ApiNotificationGroupJSON[] | ApiNotificationJSON[],
 ) {
   const fetchedAccounts: ApiAccountJSON[] = [];
   const fetchedStatuses: ApiStatusJSON[] = [];
@@ -77,7 +77,8 @@ export const fetchNotifications = createDataLoadingThunk(
     // recent notifications when doing the initial load
     const nextLink = links.refs.find((link) => link.rel === 'next');
 
-    const payload: (NotificationGroupJSON | NotificationGap)[] = notifications;
+    const payload: (ApiNotificationGroupJSON | NotificationGap)[] =
+      notifications;
 
     if (nextLink) payload.push({ type: 'gap', loadUrl: nextLink.uri });
 
diff --git a/app/javascript/mastodon/actions/notifications_typed.ts b/app/javascript/mastodon/actions/notifications_typed.ts
index 176362f4b1..88d942d45e 100644
--- a/app/javascript/mastodon/actions/notifications_typed.ts
+++ b/app/javascript/mastodon/actions/notifications_typed.ts
@@ -1,11 +1,6 @@
 import { createAction } from '@reduxjs/toolkit';
 
-import type { ApiAccountJSON } from '../api_types/accounts';
-// To be replaced once ApiNotificationJSON type exists
-interface FakeApiNotificationJSON {
-  type: string;
-  account: ApiAccountJSON;
-}
+import type { ApiNotificationJSON } from 'mastodon/api_types/notifications';
 
 export const notificationsUpdate = createAction(
   'notifications/update',
@@ -13,7 +8,7 @@ export const notificationsUpdate = createAction(
     playSound,
     ...args
   }: {
-    notification: FakeApiNotificationJSON;
+    notification: ApiNotificationJSON;
     usePendingItems: boolean;
     playSound: boolean;
   }) => ({
diff --git a/app/javascript/mastodon/api/notifications.ts b/app/javascript/mastodon/api/notifications.ts
index 97f5fd13cf..abc83882b1 100644
--- a/app/javascript/mastodon/api/notifications.ts
+++ b/app/javascript/mastodon/api/notifications.ts
@@ -1,5 +1,5 @@
 import api, { getLinks } from 'mastodon/api';
-import type { NotificationGroupJSON } from 'mastodon/api_types/notifications';
+import type { ApiNotificationGroupJSON } from 'mastodon/api_types/notifications';
 
 export const apiFetchNotifications = async (
   params?: {
@@ -7,7 +7,7 @@ export const apiFetchNotifications = async (
   },
   forceUrl?: string,
 ) => {
-  const response = await api().request<NotificationGroupJSON[]>({
+  const response = await api().request<ApiNotificationGroupJSON[]>({
     method: 'GET',
     url: forceUrl ?? '/api/v2_alpha/notifications',
     params,
diff --git a/app/javascript/mastodon/api_types/notifications.ts b/app/javascript/mastodon/api_types/notifications.ts
index e60c0e1821..d7cbbca73b 100644
--- a/app/javascript/mastodon/api_types/notifications.ts
+++ b/app/javascript/mastodon/api_types/notifications.ts
@@ -130,14 +130,14 @@ interface AccountRelationshipSeveranceNotificationJSON
   event: ApiAccountRelationshipSeveranceEventJSON;
 }
 
-export type NotificationJSON =
+export type ApiNotificationJSON =
   | SimpleNotificationJSON
   | ReportNotificationJSON
   | AccountRelationshipSeveranceNotificationJSON
   | NotificationWithStatusJSON
   | ModerationWarningNotificationJSON;
 
-export type NotificationGroupJSON =
+export type ApiNotificationGroupJSON =
   | SimpleNotificationGroupJSON
   | ReportNotificationGroupJSON
   | AccountRelationshipSeveranceNotificationGroupJSON
diff --git a/app/javascript/mastodon/models/notification_group.ts b/app/javascript/mastodon/models/notification_group.ts
index 4dc7229c31..629da44be4 100644
--- a/app/javascript/mastodon/models/notification_group.ts
+++ b/app/javascript/mastodon/models/notification_group.ts
@@ -2,8 +2,8 @@ import type {
   ApiAccountRelationshipSeveranceEventJSON,
   ApiAccountWarningJSON,
   BaseNotificationGroupJSON,
-  NotificationGroupJSON,
-  NotificationJSON,
+  ApiNotificationGroupJSON,
+  ApiNotificationJSON,
   NotificationType,
   NotificationWithStatusType,
 } from 'mastodon/api_types/notifications';
@@ -113,7 +113,7 @@ function createAccountRelationshipSeveranceEventFromJSON(
 }
 
 export function createNotificationGroupFromJSON(
-  groupJson: NotificationGroupJSON,
+  groupJson: ApiNotificationGroupJSON,
 ): NotificationGroup {
   const { sample_accounts, ...group } = groupJson;
   const sampleAccountsIds = sample_accounts.map((account) => account.id);
@@ -164,7 +164,7 @@ export function createNotificationGroupFromJSON(
 }
 
 export function createNotificationGroupFromNotificationJSON(
-  notification: NotificationJSON,
+  notification: ApiNotificationJSON,
 ) {
   const group = {
     sampleAccountsIds: [notification.account.id],