diff --git a/packages/pl-fe/src/actions/about.ts b/packages/pl-fe/src/actions/about.ts
index ceb17ad29..abc74c13b 100644
--- a/packages/pl-fe/src/actions/about.ts
+++ b/packages/pl-fe/src/actions/about.ts
@@ -23,7 +23,7 @@ interface FetchAboutPageFailAction {
   type: typeof FETCH_ABOUT_PAGE_FAIL;
   slug: string;
   locale?: string;
-  error: any;
+  error: unknown;
 }
 
 const fetchAboutPage = (slug = 'index', locale?: string) => (dispatch: AppDispatch, getState: () => RootState) => {
diff --git a/packages/pl-fe/src/actions/auth.ts b/packages/pl-fe/src/actions/auth.ts
index 4c34b7fa7..49d5f7286 100644
--- a/packages/pl-fe/src/actions/auth.ts
+++ b/packages/pl-fe/src/actions/auth.ts
@@ -174,7 +174,7 @@ interface VerifyCredentialsSuccessAction {
 interface VerifyCredentialsFailAction {
   type: typeof VERIFY_CREDENTIALS_FAIL;
   token: string;
-  error: any;
+  error: unknown;
 }
 
 const verifyCredentials = (token: string, accountUrl?: string) =>
@@ -220,7 +220,7 @@ interface AuthAccountRememberSuccessAction {
 
 interface AuthAccountRememberFailAction {
   type: typeof AUTH_ACCOUNT_REMEMBER_FAIL;
-  error: any;
+  error: unknown;
   accountUrl: string;
   skipAlert: boolean;
 }
diff --git a/packages/pl-fe/src/actions/export-data.ts b/packages/pl-fe/src/actions/export-data.ts
index d91b1760b..9c28c1911 100644
--- a/packages/pl-fe/src/actions/export-data.ts
+++ b/packages/pl-fe/src/actions/export-data.ts
@@ -27,15 +27,16 @@ const messages = defineMessages({
 
 type ExportDataAction = {
   type: typeof EXPORT_FOLLOWS_REQUEST
-  | typeof EXPORT_FOLLOWS_SUCCESS
-  | typeof EXPORT_FOLLOWS_FAIL
   | typeof EXPORT_BLOCKS_REQUEST
-  | typeof EXPORT_BLOCKS_SUCCESS
-  | typeof EXPORT_BLOCKS_FAIL
   | typeof EXPORT_MUTES_REQUEST
-  | typeof EXPORT_MUTES_SUCCESS
+  | typeof EXPORT_FOLLOWS_SUCCESS
+  | typeof EXPORT_BLOCKS_SUCCESS
+  | typeof EXPORT_MUTES_SUCCESS;
+} | {
+  type:  typeof EXPORT_FOLLOWS_FAIL
+  | typeof EXPORT_BLOCKS_FAIL
   | typeof EXPORT_MUTES_FAIL;
-  error?: any;
+  error?: unknown;
 }
 
 const fileExport = (content: string, fileName: string) => {
diff --git a/packages/pl-fe/src/actions/import-data.ts b/packages/pl-fe/src/actions/import-data.ts
index b5a01f72b..1f991bfc7 100644
--- a/packages/pl-fe/src/actions/import-data.ts
+++ b/packages/pl-fe/src/actions/import-data.ts
@@ -20,16 +20,18 @@ const IMPORT_MUTES_FAIL = 'IMPORT_MUTES_FAIL' as const;
 
 type ImportDataActions = {
   type: typeof IMPORT_FOLLOWS_REQUEST
-  | typeof IMPORT_FOLLOWS_SUCCESS
-  | typeof IMPORT_FOLLOWS_FAIL
   | typeof IMPORT_BLOCKS_REQUEST
+  | typeof IMPORT_MUTES_REQUEST;
+} | {
+  type: typeof IMPORT_FOLLOWS_SUCCESS
   | typeof IMPORT_BLOCKS_SUCCESS
-  | typeof IMPORT_BLOCKS_FAIL
-  | typeof IMPORT_MUTES_REQUEST
-  | typeof IMPORT_MUTES_SUCCESS
-  | typeof IMPORT_MUTES_FAIL;
-  error?: any;
+  | typeof IMPORT_MUTES_SUCCESS;
   response?: string;
+} | {
+  type: | typeof IMPORT_FOLLOWS_FAIL
+  | typeof IMPORT_BLOCKS_FAIL
+  | typeof IMPORT_MUTES_FAIL;
+  error?: unknown;
 }
 
 const messages = defineMessages({
diff --git a/packages/pl-fe/src/actions/instance.ts b/packages/pl-fe/src/actions/instance.ts
index 3eb5cbcbb..4363b121e 100644
--- a/packages/pl-fe/src/actions/instance.ts
+++ b/packages/pl-fe/src/actions/instance.ts
@@ -26,7 +26,7 @@ interface InstanceFetchSuccessAction {
 
 interface InstanceFetchFailAction {
   type: typeof INSTANCE_FETCH_FAIL;
-  error: any;
+  error: unknown;
 }
 
 const fetchInstance = () => async (dispatch: AppDispatch, getState: () => RootState) => {
diff --git a/packages/pl-fe/src/actions/lists.ts b/packages/pl-fe/src/actions/lists.ts
index e1de73e33..463f151c5 100644
--- a/packages/pl-fe/src/actions/lists.ts
+++ b/packages/pl-fe/src/actions/lists.ts
@@ -310,7 +310,7 @@ const addToListSuccess = (listId: string, accountId: string) => ({
   accountId,
 });
 
-const addToListFail = (listId: string, accountId: string, error: any) => ({
+const addToListFail = (listId: string, accountId: string, error: unknown) => ({
   type: LIST_EDITOR_ADD_FAIL,
   listId,
   accountId,
diff --git a/packages/pl-fe/src/actions/media.ts b/packages/pl-fe/src/actions/media.ts
index 7bfd4b293..0879dfe6f 100644
--- a/packages/pl-fe/src/actions/media.ts
+++ b/packages/pl-fe/src/actions/media.ts
@@ -16,10 +16,10 @@ const messages = defineMessages({
   exceededVideoDurationLimit: { id: 'upload_error.video_duration_limit', defaultMessage: 'Video exceeds the current duration limit ({limit, plural, one {# second} other {# seconds}})' },
 });
 
-const noOp = (e: any) => {};
+const noOp = () => {};
 
 const updateMedia = (mediaId: string, params: Record<string, any>) =>
-  (dispatch: any, getState: () => RootState) =>
+  (_dispatch: AppDispatch, getState: () => RootState) =>
     getClient(getState()).media.updateMedia(mediaId, params);
 
 const uploadMedia = (body: UploadMediaParams, onUploadProgress: (e: ProgressEvent) => void = noOp) =>
diff --git a/packages/pl-fe/src/actions/timelines.ts b/packages/pl-fe/src/actions/timelines.ts
index dfc5f3a12..487039ff7 100644
--- a/packages/pl-fe/src/actions/timelines.ts
+++ b/packages/pl-fe/src/actions/timelines.ts
@@ -6,7 +6,17 @@ import { getClient } from '../api';
 
 import { importEntities } from './importer';
 
-import type { PaginatedResponse, Status as BaseStatus, PublicTimelineParams, HomeTimelineParams, ListTimelineParams, HashtagTimelineParams, GetAccountStatusesParams, GroupTimelineParams } from 'pl-api';
+import type {
+  Account as BaseAccount,
+  GetAccountStatusesParams,
+  GroupTimelineParams,
+  HashtagTimelineParams,
+  HomeTimelineParams,
+  ListTimelineParams,
+  PaginatedResponse,
+  PublicTimelineParams,
+  Status as BaseStatus,
+} from 'pl-api';
 import type { AppDispatch, RootState } from 'pl-fe/store';
 
 const TIMELINE_UPDATE = 'TIMELINE_UPDATE' as const;
@@ -133,20 +143,16 @@ const parseTags = (tags: Record<string, any[]> = {}, mode: 'any' | 'all' | 'none
   (tags[mode] || []).map((tag) => tag.value);
 
 const deduplicateStatuses = (statuses: Array<BaseStatus>) => {
-  const deduplicatedStatuses: any[] = [];
+  const deduplicatedStatuses: Array<BaseStatus & { accounts: Array<BaseAccount> }> = [];
 
   for (const status of statuses) {
     const reblogged = status.reblog && deduplicatedStatuses.find((deduplicatedStatus) => deduplicatedStatus.reblog?.id === status.reblog?.id);
 
     if (reblogged) {
-      if (reblogged.accounts) {
-        reblogged.accounts.push(status.account);
-      } else {
-        reblogged.accounts = [reblogged.account, status.account];
-      }
+      reblogged.accounts.push(status.account);
       reblogged.id += ':' + status.id;
     } else if (!deduplicatedStatuses.find((deduplicatedStatus) => deduplicatedStatus.reblog?.id === status.id)) {
-      deduplicatedStatuses.push(status);
+      deduplicatedStatuses.push({ accounts: [status.account], ...status });
     }
   }
 
diff --git a/packages/pl-fe/src/components/search-input.tsx b/packages/pl-fe/src/components/search-input.tsx
index be7dc2ade..11460b297 100644
--- a/packages/pl-fe/src/components/search-input.tsx
+++ b/packages/pl-fe/src/components/search-input.tsx
@@ -7,14 +7,16 @@ import AutosuggestAccountInput from 'pl-fe/components/autosuggest-account-input'
 import SvgIcon from 'pl-fe/components/ui/svg-icon';
 import { useAppDispatch } from 'pl-fe/hooks/use-app-dispatch';
 import { selectAccount } from 'pl-fe/selectors';
-import { AppDispatch, RootState } from 'pl-fe/store';
+
+import type { AppDispatch, RootState } from 'pl-fe/store';
+import type { History } from 'pl-fe/types/history';
 
 const messages = defineMessages({
   placeholder: { id: 'search.placeholder', defaultMessage: 'Search' },
   action: { id: 'search.action', defaultMessage: 'Search for “{query}”' },
 });
 
-const redirectToAccount = (accountId: string, routerHistory: any) =>
+const redirectToAccount = (accountId: string, routerHistory: History) =>
   (_dispatch: AppDispatch, getState: () => RootState) => {
     const acct = selectAccount(getState(), accountId)!.acct;
 
diff --git a/packages/pl-fe/src/iframe.ts b/packages/pl-fe/src/iframe.ts
index 7e578aa3f..ae4893bc4 100644
--- a/packages/pl-fe/src/iframe.ts
+++ b/packages/pl-fe/src/iframe.ts
@@ -1,5 +1,5 @@
 /** ID of this iframe (given by embed.js) when embedded on a page. */
-let iframeId: any;
+let iframeId: string;
 
 /** Receive iframe messages. */
 // https://github.com/mastodon/mastodon/pull/4853
diff --git a/packages/pl-fe/src/reducers/meta.ts b/packages/pl-fe/src/reducers/meta.ts
index 6a47da2b5..78e5e9f3b 100644
--- a/packages/pl-fe/src/reducers/meta.ts
+++ b/packages/pl-fe/src/reducers/meta.ts
@@ -8,7 +8,7 @@ const initialState = {
 const meta = (state = initialState, action: InstanceAction): typeof initialState => {
   switch (action.type) {
     case INSTANCE_FETCH_FAIL:
-      if (action.error?.response?.status === 404) {
+      if ((action.error as any)?.response?.status === 404) {
         return { instance_fetch_failed: true };
       }
       return state;