diff --git a/js/vue.config.js b/js/vue.config.js
index e723a2cf1..d70468226 100644
--- a/js/vue.config.js
+++ b/js/vue.config.js
@@ -14,6 +14,9 @@ module.exports = {
       swSrc: "./src/service-worker.ts",
       // ...other Workbox options...
     },
+    manifestOptions: {
+      orientation: "portrait-primary",
+    },
   },
   css: {
     loaderOptions: {