diff --git a/src/tools/languageTools.cpp b/src/tools/languageTools.cpp
index a9b2238ff..c1abd2933 100644
--- a/src/tools/languageTools.cpp
+++ b/src/tools/languageTools.cpp
@@ -10,10 +10,12 @@ namespace
 
 // These mappings are not provided by the ICU library, any such mappings can be manually added here
 std::map<std::string, std::string> iso639_3 = {
+    {"ami", "Amis"},
     {"atj", "atikamekw"},
     {"azb", "آذربایجان دیلی"},
     {"bcl", "central bikol"},
     {"bgs", "tagabawa"},
+    {"blk", "ပအိုဝ်ႏ"},
     {"bxr", "буряад хэлэн"},
     {"cbk", "chavacano"},
     {"cdo", "閩東語"},
@@ -23,13 +25,16 @@ std::map<std::string, std::string> iso639_3 = {
     {"eml", "emiliân-rumagnōl"},
     {"fbs", "српскохрватски"},
     {"fon", "fɔ̀ngbè"},
+    {"gcr", "Kriyòl gwiyannen"},
     {"guw", "Gungbe"},
     {"hbs", "srpskohrvatski"},
+    {"hyw", "հայերէն/հայերեն"},
     {"ido", "ido"},
     {"kbp", "kabɩyɛ"},
     {"kld", "Gamilaraay"},
     {"lbe", "лакку маз"},
     {"lbj", "ལ་དྭགས་སྐད་"},
+    {"lld", "ladin"},
     {"map", "Austronesian"},
     {"mhr", "марий йылме"},
     {"mnw", "ဘာသာမန်"},
@@ -41,10 +46,15 @@ std::map<std::string, std::string> iso639_3 = {
     {"olo", "livvi"},
     {"pih", "Pitcairn-Norfolk"},
     {"pnb", "Western Panjabi"},
+    {"pwn", "Pinayuanan"},
     {"rmr", "Caló"},
     {"rmy", "romani shib"},
     {"roa", "romance languages"},
-    {"twi", "twi"},
+    {"skr", "سرائیکی"},
+    {"szy", "Sakizaya"},
+    {"tay", "Tayal"},
+    {"tgl", "Wikang Tagalog"},
+    {"twi", "Akwapem Twi"},
 // ICU for Ubuntu versions <= focal (20.04) returns "" for the language code ""
 // unlike the later versions - which returns "und". We map this value to "Undetermined" for a common ground.
     {"", "Undetermined"},