diff --git a/public/index.html b/public/index.html
index 09d421b..50c38fe 100644
--- a/public/index.html
+++ b/public/index.html
@@ -191,6 +191,11 @@
                         <span>&nbsp;&nbsp;-&nbsp;&nbsp;</span>
                         <span>(Arabic)</span>
                     </button>
+                    <button class="btn fw wrap" value="ca">
+                        <span>Català</span>
+                        <span>&nbsp;&nbsp;-&nbsp;&nbsp;</span>
+                        <span>(Catalan)</span>
+                    </button>
                     <button class="btn fw wrap" value="de">
                         <span>Deutsch</span>
                         <span>&nbsp;&nbsp;-&nbsp;&nbsp;</span>
diff --git a/public/scripts/localization.js b/public/scripts/localization.js
index a2a7a51..b696ef9 100644
--- a/public/scripts/localization.js
+++ b/public/scripts/localization.js
@@ -1,7 +1,7 @@
 class Localization {
     constructor() {
         Localization.defaultLocale = "en";
-        Localization.supportedLocales = ["ar", "de", "en", "es", "fr", "id", "it", "ja", "nb", "nl", "ro", "ru", "tr", "zh-CN","pt-BR"];
+        Localization.supportedLocales = ["ar", "ca", "de", "en", "es", "fr", "id", "it", "ja", "nb", "nl", "pt-BR", "ro", "ru", "tr", "zh-CN"];
         Localization.supportedLocalesRtl = ["ar"];
 
         Localization.translations = {};
diff --git a/public/service-worker.js b/public/service-worker.js
index 77936c7..d9c95eb 100644
--- a/public/service-worker.js
+++ b/public/service-worker.js
@@ -27,6 +27,7 @@ const relativePathsToCache = [
     'images/android-chrome-512x512-maskable.png',
     'images/apple-touch-icon.png',
     'lang/ar.json',
+    'lang/ca.json',
     'lang/de.json',
     'lang/en.json',
     'lang/es.json',