diff --git a/packages/backend/@types/hcaptcha.d.ts b/packages/backend/src/@types/hcaptcha.d.ts
similarity index 100%
rename from packages/backend/@types/hcaptcha.d.ts
rename to packages/backend/src/@types/hcaptcha.d.ts
diff --git a/packages/backend/@types/http-signature.d.ts b/packages/backend/src/@types/http-signature.d.ts
similarity index 100%
rename from packages/backend/@types/http-signature.d.ts
rename to packages/backend/src/@types/http-signature.d.ts
diff --git a/packages/backend/@types/jsrsasign.d.ts b/packages/backend/src/@types/jsrsasign.d.ts
similarity index 100%
rename from packages/backend/@types/jsrsasign.d.ts
rename to packages/backend/src/@types/jsrsasign.d.ts
diff --git a/packages/backend/@types/koa-json-body.d.ts b/packages/backend/src/@types/koa-json-body.d.ts
similarity index 100%
rename from packages/backend/@types/koa-json-body.d.ts
rename to packages/backend/src/@types/koa-json-body.d.ts
diff --git a/packages/backend/@types/koa-slow.d.ts b/packages/backend/src/@types/koa-slow.d.ts
similarity index 100%
rename from packages/backend/@types/koa-slow.d.ts
rename to packages/backend/src/@types/koa-slow.d.ts
diff --git a/packages/backend/@types/langmap.d.ts b/packages/backend/src/@types/langmap.d.ts
similarity index 100%
rename from packages/backend/@types/langmap.d.ts
rename to packages/backend/src/@types/langmap.d.ts
diff --git a/packages/backend/@types/os-utils.d.ts b/packages/backend/src/@types/os-utils.d.ts
similarity index 100%
rename from packages/backend/@types/os-utils.d.ts
rename to packages/backend/src/@types/os-utils.d.ts
diff --git a/packages/backend/@types/package.json.d.ts b/packages/backend/src/@types/package.json.d.ts
similarity index 100%
rename from packages/backend/@types/package.json.d.ts
rename to packages/backend/src/@types/package.json.d.ts
diff --git a/packages/backend/@types/probe-image-size.d.ts b/packages/backend/src/@types/probe-image-size.d.ts
similarity index 100%
rename from packages/backend/@types/probe-image-size.d.ts
rename to packages/backend/src/@types/probe-image-size.d.ts
diff --git a/packages/backend/src/misc/gen-identicon.ts b/packages/backend/src/misc/gen-identicon.ts
index 5cedd7afa..fca67fcf2 100644
--- a/packages/backend/src/misc/gen-identicon.ts
+++ b/packages/backend/src/misc/gen-identicon.ts
@@ -39,7 +39,7 @@ const sideN = Math.floor(n / 2);
  */
 export function genIdenticon(seed: string, stream: WriteStream): Promise<void> {
 	const rand = gen.create(seed);
-	const canvas = p.make(size, size);
+	const canvas = p.make(size, size, undefined);
 	const ctx = canvas.getContext('2d');
 
 	ctx.fillStyle = bg;
diff --git a/packages/backend/src/remote/activitypub/renderer/note.ts b/packages/backend/src/remote/activitypub/renderer/note.ts
index 4f9a372b2..654ab6812 100644
--- a/packages/backend/src/remote/activitypub/renderer/note.ts
+++ b/packages/backend/src/remote/activitypub/renderer/note.ts
@@ -11,7 +11,7 @@ import { In } from 'typeorm';
 import { Emoji } from '@/models/entities/emoji';
 import { Poll } from '@/models/entities/poll';
 
-export default async function renderNote(note: Note, dive = true, isTalk = false): Promise<any> {
+export default async function renderNote(note: Note, dive = true, isTalk = false): Promise<Record<string, unknown>> {
 	const getPromisedFiles = async (ids: string[]) => {
 		if (!ids || ids.length === 0) return [];
 		const items = await DriveFiles.find({ id: In(ids) });
diff --git a/packages/backend/src/remote/activitypub/renderer/ordered-collection.ts b/packages/backend/src/remote/activitypub/renderer/ordered-collection.ts
index c4b4337af..ff9a77be3 100644
--- a/packages/backend/src/remote/activitypub/renderer/ordered-collection.ts
+++ b/packages/backend/src/remote/activitypub/renderer/ordered-collection.ts
@@ -6,7 +6,14 @@
  * @param last URL of last page (optional)
  * @param orderedItems attached objects (optional)
  */
-export default function(id: string | null, totalItems: any, first?: string, last?: string, orderedItems?: Record<string, unknown>) {
+export default function(id: string | null, totalItems: any, first?: string, last?: string, orderedItems?: Record<string, unknown>[]): {
+	id: string | null;
+	type: 'OrderedCollection';
+	totalItems: any;
+	first?: string;
+	last?: string;
+	orderedItems?: Record<string, unknown>[];
+} {
 	const page: any = {
 		id,
 		type: 'OrderedCollection',
diff --git a/packages/backend/src/server/activitypub/featured.ts b/packages/backend/src/server/activitypub/featured.ts
index 40b8d8cc8..ed5bfc426 100644
--- a/packages/backend/src/server/activitypub/featured.ts
+++ b/packages/backend/src/server/activitypub/featured.ts
@@ -32,7 +32,7 @@ export default async (ctx: Router.RouterContext) => {
 
 	const rendered = renderOrderedCollection(
 		`${config.url}/users/${userId}/collections/featured`,
-		renderedNotes.length, undefined, undefined, renderedNotes
+		renderedNotes.length, undefined, undefined, renderedNotes,
 	);
 
 	ctx.body = renderActivity(rendered);
diff --git a/packages/backend/tsconfig.json b/packages/backend/tsconfig.json
index 3311e117d..f3252b286 100644
--- a/packages/backend/tsconfig.json
+++ b/packages/backend/tsconfig.json
@@ -30,7 +30,7 @@
 		"outDir": "./built",
 		"typeRoots": [
 			"./node_modules/@types",
-			"./@types"
+			"./src/@types"
 		],
 		"lib": [
 			"esnext"