diff --git a/src/backend/src/main.ts b/src/backend/src/main.ts
index 9626532..91e5dc9 100644
--- a/src/backend/src/main.ts
+++ b/src/backend/src/main.ts
@@ -66,6 +66,11 @@ async function bootstrap() {
   app.use(
     helmet({
       crossOriginResourcePolicy: false,
+      contentSecurityPolicy: {
+        directives: {
+          upgradeInsecureRequests: null,
+        },
+      },
     }),
   );