diff --git a/server/@types/express-request-mock/index.d.ts b/server/@types/express-request-mock/index.d.ts
index 1a2b9ad83..ec66496fc 100644
--- a/server/@types/express-request-mock/index.d.ts
+++ b/server/@types/express-request-mock/index.d.ts
@@ -2,17 +2,17 @@
 // this is a hack fix for express-request-mock's lack of typing.
 
 declare module "express-request-mock" {
-    import { Request, RequestHandler, Response } from "express";
-    import { RequestOptions, MockResponse } from "node-mocks-http";
+	import { Request, RequestHandler, Response } from "express";
+	import { RequestOptions, MockResponse } from "node-mocks-http";
 
-    export default function (
-        callback: RequestHandler,
-        options?: RequestOptions,
-        decorators?: Record<string, unknown>
-    ): Promise<{
-        req: Request;
-        res: MockResponse<Response<any, Record<string, any>>>;
-        request: Request;
-        response: MockResponse<Response<any, Record<string, any>>>;
-    }>;
+	export default function (
+		callback: RequestHandler,
+		options?: RequestOptions,
+		decorators?: Record<string, unknown>
+	): Promise<{
+		req: Request;
+		res: MockResponse<Response<any, Record<string, any>>>;
+		request: Request;
+		response: MockResponse<Response<any, Record<string, any>>>;
+	}>;
 }
diff --git a/server/@types/mongodb/index.d.ts b/server/@types/mongodb/index.d.ts
new file mode 100644
index 000000000..b8524e703
--- /dev/null
+++ b/server/@types/mongodb/index.d.ts
@@ -0,0 +1,8 @@
+declare module "mongodb" {
+	// eslint-disable-next-line @typescript-eslint/no-unused-vars
+	interface FindOneOptions<T> {
+		projectID?: boolean;
+	}
+}
+
+export {};
diff --git a/server/@types/why-is-node-running/index.d.ts b/server/@types/why-is-node-running/index.d.ts
index b481df502..643eaba11 100644
--- a/server/@types/why-is-node-running/index.d.ts
+++ b/server/@types/why-is-node-running/index.d.ts
@@ -1,3 +1,3 @@
 declare module "why-is-node-running" {
-    export default function log(): void;
+	export default function log(): void;
 }
diff --git a/server/src/external/mongo/db.test.ts b/server/src/external/mongo/db.test.ts
index 379feba1b..180c34b84 100644
--- a/server/src/external/mongo/db.test.ts
+++ b/server/src/external/mongo/db.test.ts
@@ -9,21 +9,18 @@ t.test("ID field autoprojection", async (t) => {
 	const res = await db.scores.findOne();
 	t.equal(res!._id, undefined);
 
-	// @ts-expect-error todo: #205 type properly
 	const res2 = await db.scores.findOne({}, { projectID: true });
 	t.not(res2!._id, undefined);
 
 	const res3 = await db.scores.findOne({}, { projection: { scoreID: 1 } });
 	t.equal(res3!._id, undefined);
 
-	// @ts-expect-error todo: #205 type properly
 	const res4 = await db.scores.findOne({}, { projection: { scoreID: 1 }, projectID: true });
 	t.not(res4!._id, undefined);
 
 	const res5 = await db.scores.findOne({}, { projection: { scoreID: 0 } });
 	t.equal(res5!._id, undefined);
 
-	// @ts-expect-error todo: #205 type properly
 	const res6 = await db.scores.findOne({}, { projection: { scoreID: 0 }, projectID: true });
 	t.not(res6!._id, undefined);