diff --git a/po/ko.po b/po/ko.po
index 91bd020..652a339 100644
--- a/po/ko.po
+++ b/po/ko.po
@@ -1,14 +1,14 @@
 # Korean translation for libsecret.
 # This file is distributed under the same license as the libsecret package.
 #
-# Changwoo Ryu <cwryu@debian.org>, 2013.
+# Changwoo Ryu <cwryu@debian.org>, 2013, 2021.
 #
 msgid ""
 msgstr ""
 "Project-Id-Version: libsecret master\n"
-"Report-Msgid-Bugs-To: http://bugzilla.gnome.org/enter_bug.cgi?product=libsecret&keywords=I18N+L10N&component=general\n"
-"POT-Creation-Date: 2013-09-13 13:01+0000\n"
-"PO-Revision-Date: 2013-09-14 22:21+0900\n"
+"Report-Msgid-Bugs-To: https://gitlab.gnome.org/GNOME/libsecret/issues\n"
+"POT-Creation-Date: 2021-06-24 11:59+0000\n"
+"PO-Revision-Date: 2021-09-03 22:39+0900\n"
 "Last-Translator: Changwoo Ryu <cwryu@debian.org>\n"
 "Language-Team: GNOME Korea <gnome-kr@googlegroups.com>\n"
 "Language: ko\n"
@@ -17,39 +17,42 @@ msgstr ""
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=1; plural=0;\n"
 
-#: ../libsecret/secret-item.c:1164
-#, c-format
+#: libsecret/secret-item.c:1104
 msgid "Received invalid secret from the secret storage"
 msgstr "비밀 저장소에서 잘못된 비밀 정보를 받았습니다"
 
-#: ../libsecret/secret-methods.c:1055
+#: libsecret/secret-methods.c:1055
 msgid "Default keyring"
 msgstr "기본 키 모음"
 
-#: ../libsecret/secret-session.c:244 ../libsecret/secret-session.c:281
+#: libsecret/secret-session.c:243 libsecret/secret-session.c:279
 msgid "Couldn’t communicate with the secret storage"
 msgstr "비밀 저장 장치와 통신할 수 없습니다"
 
-#: ../tool/secret-tool.c:39
+#: tool/secret-tool.c:42
 msgid "the label for the new stored item"
 msgstr "새로 저장한 항목의 레이블"
 
-#: ../tool/secret-tool.c:41
+#: tool/secret-tool.c:44
 msgid "the collection in which to place the stored item"
 msgstr "저장한 항목을 놓을 모음"
 
-#: ../tool/secret-tool.c:43 ../tool/secret-tool.c:50 ../tool/secret-tool.c:437
+#: tool/secret-tool.c:46 tool/secret-tool.c:53 tool/secret-tool.c:458
 msgid "attribute value pairs of item to lookup"
 msgstr "찾아볼 항목의 속성 값의 쌍"
 
-#: ../tool/secret-tool.c:57
+#: tool/secret-tool.c:60
 msgid "attribute value pairs which match items to clear"
 msgstr "지울 항목에 해당하는 속성 값의 쌍"
 
-#: ../tool/secret-tool.c:433
+#: tool/secret-tool.c:67
+msgid "collection in which to lock"
+msgstr "내부에서 잠글 모음"
+
+#: tool/secret-tool.c:454
 msgid "return all results, instead of just first one"
 msgstr "첫 번째 결과가 아니라 모든 결과를 리턴합니다"
 
-#: ../tool/secret-tool.c:435
+#: tool/secret-tool.c:456
 msgid "unlock item results if necessary"
 msgstr "필요하면 항목 결과의 잠금을 풉니다"