diff --git a/frontend/src/app/components/about/about.component.html b/frontend/src/app/components/about/about.component.html
index 17920157f..c2147c8b4 100644
--- a/frontend/src/app/components/about/about.component.html
+++ b/frontend/src/app/components/about/about.component.html
@@ -16,7 +16,18 @@
   <video src="/resources/promo-video/mempool-promo.mp4" poster="/resources/promo-video/mempool-promo.jpg" controls loop playsinline [autoplay]="true" [muted]="true">
     <track label="English" kind="captions" srclang="en" src="/resources/promo-video/en.vtt" [attr.default]="showSubtitles('en') ? '' : null">
     <track label="日本語" kind="captions" srclang="ja" src="/resources/promo-video/ja.vtt" [attr.default]="showSubtitles('ja') ? '' : null">
-    <track label="Svenska" kind="captions" srclang="sv" src="/resources/promo-video/sv.vtt" [attr.default]="showSubtitles('sv') ? '' : null">
+    <track label="Svenska" kind="captions" srclang="zh" src="/resources/promo-video/zh.vtt" [attr.default]="showSubtitles('zh') ? '' : null">
+    <track label="Čeština" kind="captions" srclang="cs" src="/resources/promo-video/cs.vtt" [attr.default]="showSubtitles('cs') ? '' : null">
+    <track label="Suomi" kind="captions" srclang="fi" src="/resources/promo-video/fi.vtt" [attr.default]="showSubtitles('fi') ? '' : null">
+    <track label="Français" kind="captions" srclang="fr" src="/resources/promo-video/fr.vtt" [attr.default]="showSubtitles('fr') ? '' : null">
+    <track label="Deutsch" kind="captions" srclang="de" src="/resources/promo-video/de.vtt" [attr.default]="showSubtitles('de') ? '' : null">
+    <track label="Italiano" kind="captions" srclang="it" src="/resources/promo-video/it.vtt" [attr.default]="showSubtitles('it') ? '' : null">
+    <track label="Lietuvių" kind="captions" srclang="lt" src="/resources/promo-video/lt.vtt" [attr.default]="showSubtitles('lt') ? '' : null">
+    <track label="Norsk" kind="captions" srclang="nb" src="/resources/promo-video/nb.vtt" [attr.default]="showSubtitles('nb') ? '' : null">
+    <track label="فارسی" kind="captions" srclang="fa" src="/resources/promo-video/fa.vtt" [attr.default]="showSubtitles('fa') ? '' : null">
+    <track label="Polski" kind="captions" srclang="pl" src="/resources/promo-video/pl.vtt" [attr.default]="showSubtitles('pl') ? '' : null">
+    <track label="Română" kind="captions" srclang="ro" src="/resources/promo-video/ro.vtt" [attr.default]="showSubtitles('ro') ? '' : null">
+    <track label="Português" kind="captions" srclang="pt" src="/resources/promo-video/pt.vtt" [attr.default]="showSubtitles('pt') ? '' : null">
   </video>
 
   <div class="enterprise-sponsor" id="enterprise-sponsors">
diff --git a/frontend/sync-assets.js b/frontend/sync-assets.js
index 9512116fa..953811fae 100644
--- a/frontend/sync-assets.js
+++ b/frontend/sync-assets.js
@@ -84,7 +84,7 @@ const testnetAssetsMinimalJsonUrl = 'https://raw.githubusercontent.com/Blockstre
 const promoPrefix = PATH + 'promo-video/';
 const promoVideoFile = promoPrefix + 'mempool-promo.mp4';
 const promoVideoUrl = 'https://raw.githubusercontent.com/mempool/mempool-promo/master/promo.mp4';
-const promoVideoLanguages = ['en','sv','ja'];
+const promoVideoLanguages = ['en','sv','ja','zh','cs','fi','fr','de','it','lt','nb','fa','pl','ro','pt'];
 
 console.log('Downloading assets');
 download(PATH + 'assets.json', assetsJsonUrl);