diff --git a/src/main/resources/static/js/mobile/bootstrap-datetimepicker/ko.js b/src/main/resources/static/js/mobile/bootstrap-datetimepicker/ko.js
index 5e79493..61f90f4 100644
--- a/src/main/resources/static/js/mobile/bootstrap-datetimepicker/ko.js
+++ b/src/main/resources/static/js/mobile/bootstrap-datetimepicker/ko.js
@@ -11,7 +11,7 @@
 }(this, (function (moment) { 'use strict';
 
 
-var ko = moment.defineLocale('ko', {
+var ko = moment.updateLocale('ko', {
     months : '1월_2월_3월_4월_5월_6월_7월_8월_9월_10월_11월_12월'.split('_'),
     monthsShort : '1월_2월_3월_4월_5월_6월_7월_8월_9월_10월_11월_12월'.split('_'),
     weekdays : '일요일_월요일_화요일_수요일_목요일_금요일_토요일'.split('_'),
diff --git a/src/main/resources/static/js/web/bootstrap-datetimepicker/ko.js b/src/main/resources/static/js/web/bootstrap-datetimepicker/ko.js
index 5e79493..61f90f4 100644
--- a/src/main/resources/static/js/web/bootstrap-datetimepicker/ko.js
+++ b/src/main/resources/static/js/web/bootstrap-datetimepicker/ko.js
@@ -11,7 +11,7 @@
 }(this, (function (moment) { 'use strict';
 
 
-var ko = moment.defineLocale('ko', {
+var ko = moment.updateLocale('ko', {
     months : '1월_2월_3월_4월_5월_6월_7월_8월_9월_10월_11월_12월'.split('_'),
     monthsShort : '1월_2월_3월_4월_5월_6월_7월_8월_9월_10월_11월_12월'.split('_'),
     weekdays : '일요일_월요일_화요일_수요일_목요일_금요일_토요일'.split('_'),