diff --git a/backend/src/controllers/documentation.ts b/backend/src/controllers/documentation.ts
index 079e6635..742e15bb 100644
--- a/backend/src/controllers/documentation.ts
+++ b/backend/src/controllers/documentation.ts
@@ -40,8 +40,8 @@ options.swaggerDefinition.openapi = '3.0.0'
 const specs: any = swaggerJsdoc(options);
 
 // publish swagger json (optional)
-router.get(`/bulk.json`, (_, res) => res.send(specs));
-router.get(`/tsoa.json`, (_, res) => res.send(swaggerDocument));
+router.get(`/bulk.json`, (_, res: any) => res.send(specs));
+router.get(`/tsoa.json`, (_, res: any) => res.send(swaggerDocument));
 
 specs.paths = {...specs.paths, ...swaggerDocument.paths}
 specs.components = {...specs.components, ...swaggerDocument.components}
@@ -49,6 +49,6 @@ specs.components = {...specs.components, ...swaggerDocument.components}
 
 // deafult swagger-example.json replaced by local swagger file
 // this could also be done using a res.redirect('/path/to/swagger`)
-router.get(`/svelte/swagger-example.json`, (_, res) => res.send(specs));
+router.get(`/svelte/swagger-example.json`, (_, res: any) => res.send(specs));
 router.use(`/svelte`, express.static(getCwd(), { 'index': ['index.html'] }));
 router.use(`/`, swaggerUi.serve, swaggerUi.setup(specs));
diff --git a/backend/src/server.ts b/backend/src/server.ts
index ef14a5b0..5f41e174 100644
--- a/backend/src/server.ts
+++ b/backend/src/server.ts
@@ -93,7 +93,7 @@ app.use((
   req: ExRequest,
   res: ExResponse,
   next: NextFunction
-): ExResponse | void => {
+): any => {
   if (err instanceof ValidateError) {
     log({
         error: "Validation Failed",