diff --git a/_source/assets/js/concept-search-worker.js b/_source/assets/js/concept-search-worker.js
index ca2376f5..33ea8b83 100644
--- a/_source/assets/js/concept-search-worker.js
+++ b/_source/assets/js/concept-search-worker.js
@@ -5,16 +5,19 @@ const CONCEPTS_URL = '/api/concepts-index-list.json';
 const LANGUAGES = [
   'eng',
   'ara',
-  'spa',
-  'swe',
-  'kor',
-  'rus',
-  'ger',
-  'fre',
+  'dan',
+  'deu',
   'fin',
+  'fra',
   'jpn',
-  'dan',
-  'chi',
+  'kor',
+  'msa',
+  'nld',
+  'pol',
+  'rus',
+  'spa',
+  'swe',
+  'zho',
 ];
 
 var concepts = null;
diff --git a/_source/assets/js/concept-search.js b/_source/assets/js/concept-search.js
index 5cda4564..9bff11c5 100644
--- a/_source/assets/js/concept-search.js
+++ b/_source/assets/js/concept-search.js
@@ -6,16 +6,19 @@
   const LANGUAGES = [
     'eng',
     'ara',
-    'spa',
-    'swe',
-    'kor',
-    'rus',
-    'ger',
-    'fre',
+    'dan',
+    'deu',
     'fin',
+    'fra',
     'jpn',
-    'dan',
-    'chi',
+    'kor',
+    'msa',
+    'nld',
+    'pol',
+    'rus',
+    'spa',
+    'swe',
+    'zho',
   ];