diff --git a/lang/translations/he.po b/lang/translations/he.po
index 42fbbc5..9623caf 100644
--- a/lang/translations/he.po
+++ b/lang/translations/he.po
@@ -22,8 +22,8 @@ msgstr "רשימה ממוספרת"
 
 msgctxt "Toolbar button tooltip for the Bulleted List feature."
 msgid "Bulleted List"
-msgstr ""
+msgstr "רשימה מנוקדת"
 
 msgctxt "Toolbar button tooltip for the To-do List feature."
 msgid "To-do List"
-msgstr ""
+msgstr "רשימת מטלות"
diff --git a/lang/translations/ru.po b/lang/translations/ru.po
index 151d347..b79f149 100644
--- a/lang/translations/ru.po
+++ b/lang/translations/ru.po
@@ -26,4 +26,4 @@ msgstr "Маркированный список"
 
 msgctxt "Toolbar button tooltip for the To-do List feature."
 msgid "To-do List"
-msgstr ""
+msgstr "Список задач"
diff --git a/lang/translations/uk.po b/lang/translations/uk.po
index d1e4a47..868ed95 100644
--- a/lang/translations/uk.po
+++ b/lang/translations/uk.po
@@ -26,4 +26,4 @@ msgstr "Маркерний список"
 
 msgctxt "Toolbar button tooltip for the To-do List feature."
 msgid "To-do List"
-msgstr ""
+msgstr "Список справ"
diff --git a/lang/translations/vi.po b/lang/translations/vi.po
new file mode 100644
index 0000000..7ca8d8d
--- /dev/null
+++ b/lang/translations/vi.po
@@ -0,0 +1,29 @@
+# Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+#
+#                                     !!! IMPORTANT !!!
+#
+#         Before you edit this file, please keep in mind that contributing to the project
+#                translations is possible ONLY via the Transifex online service.
+#
+#         To submit your translations, visit https://www.transifex.com/ckeditor/ckeditor5.
+#
+#                   To learn more, check out the official contributor's guide:
+#     https://ckeditor.com/docs/ckeditor5/latest/framework/guides/contributing/contributing.html
+#
+msgid ""
+msgstr ""
+"Language-Team: Vietnamese (https://www.transifex.com/ckeditor/teams/11143/vi/)\n"
+"Language: vi\n"
+"Plural-Forms: nplurals=1; plural=0;\n"
+
+msgctxt "Toolbar button tooltip for the Numbered List feature."
+msgid "Numbered List"
+msgstr "Danh sách đánh số"
+
+msgctxt "Toolbar button tooltip for the Bulleted List feature."
+msgid "Bulleted List"
+msgstr "Danh sách đánh ký hiệu"
+
+msgctxt "Toolbar button tooltip for the To-do List feature."
+msgid "To-do List"
+msgstr "Danh sách cần làm"