diff --git a/packages/backend/src/app.ts b/packages/backend/src/app.js
similarity index 92%
rename from packages/backend/src/app.ts
rename to packages/backend/src/app.js
index aafb336a..aef7ea6b 100644
--- a/packages/backend/src/app.ts
+++ b/packages/backend/src/app.js
@@ -2,7 +2,6 @@ import createError from 'http-errors';
 import express from 'express';
 import cors from 'cors';
 
-import { IRequest } from '@automatisch/types';
 import appConfig from './config/app';
 import corsOptions from './config/cors-options';
 import morgan from './helpers/morgan';
@@ -38,7 +37,7 @@ app.use(
   express.json({
     limit: appConfig.requestBodySizeLimit,
     verify(req, res, buf) {
-      (req as IRequest).rawBody = buf;
+      req.rawBody = buf;
     },
   })
 );
@@ -47,7 +46,7 @@ app.use(
     extended: true,
     limit: appConfig.requestBodySizeLimit,
     verify(req, res, buf) {
-      (req as IRequest).rawBody = buf;
+      req.rawBody = buf;
     },
   })
 );
diff --git a/packages/backend/src/server.ts b/packages/backend/src/server.js
similarity index 71%
rename from packages/backend/src/server.ts
rename to packages/backend/src/server.js
index 2d2b586a..e3d161c2 100644
--- a/packages/backend/src/server.ts
+++ b/packages/backend/src/server.js
@@ -1,5 +1,3 @@
-import type { Server } from 'http';
-
 import app from './app';
 import appConfig from './config/app';
 import logger from './helpers/logger';
@@ -7,11 +5,11 @@ import telemetry from './helpers/telemetry';
 
 telemetry.setServiceType('main');
 
-const server: Server = app.listen(appConfig.port, () => {
+const server = app.listen(appConfig.port, () => {
   logger.info(`Server is listening on ${appConfig.baseUrl}`);
 });
 
-function shutdown(server: Server) {
+function shutdown(server) {
   server.close();
 }
 
diff --git a/packages/backend/src/worker.ts b/packages/backend/src/worker.js
similarity index 100%
rename from packages/backend/src/worker.ts
rename to packages/backend/src/worker.js