diff --git a/__tests__/unit/backend/helpers/jest-db.ts b/__tests__/unit/backend/helpers/jest-db.ts
index 291d9845cd..60e2946c8b 100644
--- a/__tests__/unit/backend/helpers/jest-db.ts
+++ b/__tests__/unit/backend/helpers/jest-db.ts
@@ -1,5 +1,5 @@
 import MemoryDatabaseServer from '__tests__/setup/database'
-import { ObjectID } from 'bson-ext'
+import { ObjectID } from 'bson'
 import mongoose from 'mongoose'
 import { FormResponseMode } from 'shared/types'
 
diff --git a/src/app/loaders/express/helmet.ts b/src/app/loaders/express/helmet.ts
index 08620ff0e1..ba054e08a7 100644
--- a/src/app/loaders/express/helmet.ts
+++ b/src/app/loaders/express/helmet.ts
@@ -1,14 +1,10 @@
 import { RequestHandler } from 'express'
-import helmet, { HelmetOptions } from 'helmet'
+import helmet from 'helmet'
+import { ContentSecurityPolicyOptions } from 'helmet/dist/types/middlewares/content-security-policy'
 
 import config from '../../config/config'
 import { sentryConfig } from '../../config/features/sentry.config'
 
-type ContentSecurityPolicyOptions = Exclude<
-  HelmetOptions['contentSecurityPolicy'],
-  boolean | undefined
->
-
 const helmetMiddlewares = () => {
   // Only add the "Strict-Transport-Security" header if request is https.
   const hstsMiddleware: RequestHandler = (req, res, next) => {