diff --git a/src/i18n/strings/cs.json b/src/i18n/strings/cs.json
index b2a5071454..5fa586e20a 100644
--- a/src/i18n/strings/cs.json
+++ b/src/i18n/strings/cs.json
@@ -28,5 +28,9 @@
     "Please install <chromeLink>Chrome</chromeLink>, <firefoxLink>Firefox</firefoxLink>, or <safariLink>Safari</safariLink> for the best experience.": "Pro nejlepší zážitek si prosím nainstalujte prohlížeč <chromeLink>Chrome</chromeLink>, <firefoxLink>Firefox</firefoxLink>, nebo <safariLink>Safari</safariLink>.",
     "You can continue using your current browser, but some or all features may not work and the look and feel of the application may be incorrect.": "Můžete pokračovat v užívání vašeho současného prohlížeče, ale některé (nebo dokonce všechny) funkce nemusí fungovat a vzhled a chování aplikace nemusí být správné.",
     "I understand the risks and wish to continue": "Rozumím a přesto chci pokračovat",
-    "Go to element.io": "Přejít na element.io"
+    "Go to element.io": "Přejít na element.io",
+    "Failed to start": "Nepovedlo se nastartovat",
+    "Powered by Matrix": "Běží na Matrixu",
+    "%(brand)s Desktop (%(platformName)s)": "%(brand)s pro desktopový počítač (%(platformName)s)",
+    "Missing indexeddb worker script!": "Nenačetl se skript spravující indexdb!"
 }
diff --git a/src/i18n/strings/fr.json b/src/i18n/strings/fr.json
index dd7784b685..7496745093 100644
--- a/src/i18n/strings/fr.json
+++ b/src/i18n/strings/fr.json
@@ -4,7 +4,7 @@
     "Unknown device": "Appareil inconnu",
     "You need to be using HTTPS to place a screen-sharing call.": "Vous devez utiliser HTTPS pour effectuer un appel avec partage d’écran.",
     "Welcome to Element": "Bienvenue sur Element",
-    "Decentralised, encrypted chat &amp; collaboration powered by [matrix]": "Discussion &amp; collaboration décentralisées et chiffrées, propulsées par [matrix]",
+    "Decentralised, encrypted chat &amp; collaboration powered by [matrix]": "Messagerie et collaboration décentralisées et chiffrées, propulsées par [matrix]",
     "Sign In": "Se connecter",
     "Create Account": "Créer un compte",
     "Explore rooms": "Explorer les salons",
diff --git a/src/i18n/strings/si.json b/src/i18n/strings/si.json
index 6b6ee57ba0..0988c1a80d 100644
--- a/src/i18n/strings/si.json
+++ b/src/i18n/strings/si.json
@@ -1,4 +1,6 @@
 {
-    "Unknown device": "නොදන්නා උපකරණය",
-    "%(appName)s (%(browserName)s, %(osName)s)": "%(appName)s (%(browserName)s, %(osName)s)"
+    "Unknown device": "නොදන්නා උපාංගයකි",
+    "%(appName)s (%(browserName)s, %(osName)s)": "%(appName)s (%(browserName)s, %(osName)s)",
+    "Welcome to Element": "ඉලමන්ට් වෙත සාදරයෙන් පිළිගනිමු",
+    "Open": "විවෘත කරන්න"
 }
diff --git a/src/i18n/strings/uk.json b/src/i18n/strings/uk.json
index 8151a78bd6..c97006b30e 100644
--- a/src/i18n/strings/uk.json
+++ b/src/i18n/strings/uk.json
@@ -7,7 +7,7 @@
     "Decentralised, encrypted chat &amp; collaboration powered by [matrix]": "Децентралізований, зашифрований чат та засіб для співпраці, заснований на [matrix]",
     "Sign In": "Увійти",
     "Create Account": "Створити обліковий запис",
-    "Explore rooms": "Шукати кімнати",
+    "Explore rooms": "Каталог кімнат",
     "Unexpected error preparing the app. See console for details.": "Неочікувана помилка при підготовці програми. Дивіться деталі у виводі консолі.",
     "Invalid configuration: can only specify one of default_server_config, default_server_name, or default_hs_url.": "Невірна конфігурація: можна вказати лише default_server_config, default_server_name або default_hs_url.",
     "Invalid configuration: no default server specified.": "Невірна конфігурація: не вказано сервер за замовчуванням.",