diff --git a/src/components/ExpressAppComponent.ts b/src/components/ExpressAppComponent.ts
index 1ee1d3f..a54b8e0 100644
--- a/src/components/ExpressAppComponent.ts
+++ b/src/components/ExpressAppComponent.ts
@@ -26,7 +26,9 @@ export default class ExpressAppComponent extends ApplicationComponent<void> {
     }
 
     public async init(router: Router): Promise<void> {
-        router.use(express.json());
+        router.use(express.json({
+            type: req => req.headers['content-type']?.match(/^application\/(.+\+)?json$/)
+        }));
         router.use(express.urlencoded({
             extended: true,
         }));