diff --git a/scripts/exporter.js b/scripts/exporter.js
index c313e03c..e2d375eb 100644
--- a/scripts/exporter.js
+++ b/scripts/exporter.js
@@ -15,7 +15,6 @@ const OUTPUT_TXT = 'sentence-collector.txt';
 // Mapping from PONTOON locale -> SC locale code
 const LANGUAGE_MAPPING = {
   'ne-NP': 'ne',
-  'sv-SE': 'sv',
   'pa-IN': 'pa',
 };
 
diff --git a/server/lib/languages.js b/server/lib/languages.js
index 7644594e..adec25dc 100644
--- a/server/lib/languages.js
+++ b/server/lib/languages.js
@@ -5,7 +5,6 @@ const FALLBACK_LOCALE = 'en';
 const LANGUAGE_MAPPING = {
   // CV - Sentence Collector
   'ne-NP': 'ne',
-  'sv-SE': 'sv',
   'pa-IN': 'pa',
 };
 
@@ -191,6 +190,11 @@ const ADDITIONAL_LANGUAGES = [
     name: 'Shilha',
     nativeName: 'Taclḥit',
   },
+  {
+    id: 'sv-SE',
+    name: 'Swedish',
+    nativeName: 'Svenska',
+  },
   {
     id: 'syr',
     name: 'Syriac',
@@ -247,6 +251,7 @@ const LANGUAGES_TO_REMOVE = [
   'ks', // re-added above as native name is wrong
   'ff', // re-added - https://discourse.mozilla.org/t/fulah-language-naming-consistency/78378
   'ga', // covered by ga-IE
+  'sv', // covered by sv-SE
 ];
 
 const isoLanguages = ISO6391.getLanguages(ISO6391.getAllCodes());
diff --git a/server/migrations/20210626134700-migrate-sv-to-sv-SE.js b/server/migrations/20210626134700-migrate-sv-to-sv-SE.js
new file mode 100644
index 00000000..c47b4d95
--- /dev/null
+++ b/server/migrations/20210626134700-migrate-sv-to-sv-SE.js
@@ -0,0 +1,12 @@
+'use strict';
+
+module.exports = {
+  up: (queryInterface) => {
+    return  queryInterface.sequelize.query(`
+      UPDATE Sentences
+        SET localeId="sv-SE"
+        WHERE localeId="sv"
+    `);
+  },
+  down: () => Promise.resolve(),
+};
diff --git a/server/migrations/20210626134730-migrate-sv-users.js b/server/migrations/20210626134730-migrate-sv-users.js
new file mode 100644
index 00000000..92f210a7
--- /dev/null
+++ b/server/migrations/20210626134730-migrate-sv-users.js
@@ -0,0 +1,11 @@
+'use strict';
+
+module.exports = {
+  up: async (queryInterface) => {
+    await queryInterface.sequelize.query("UPDATE Users SET languages = REPLACE(languages, 'sv', 'sv-SE') WHERE languages='sv'");
+    await queryInterface.sequelize.query("UPDATE Users SET languages = REPLACE(languages, 'sv,', 'sv-SE,') WHERE languages LIKE 'sv,%'");
+    await queryInterface.sequelize.query("UPDATE Users SET languages = REPLACE(languages, ',sv,', ',sv-SE,') WHERE languages LIKE '%,sv,%'");
+    await queryInterface.sequelize.query("UPDATE Users SET languages = REPLACE(languages, ',sv', ',sv-SE') WHERE languages LIKE '%,sv'");
+  },
+  down: () => Promise.resolve(),
+};