diff --git a/client/python/upbit/models.py b/client/python/upbit/models.py
index b3b7f16..7f799c6 100644
--- a/client/python/upbit/models.py
+++ b/client/python/upbit/models.py
@@ -714,6 +714,11 @@ def Withdraw_krw(self, **kwargs) -> dict:
 
         :param amount: 출금 원화 수량
         :type amount: str
+        
+        :param two_factor_type: 2차 인증 수단 (optional)
+        - kakao_pay: 카카오페이 인증 (default)
+        - naver: 네이버 인증
+        :type two_factor_type: str
         """
 
         future = self.__client.Withdraw.Withdraw_krw(**kwargs)
diff --git a/client/python/upbit/pkginfo.py b/client/python/upbit/pkginfo.py
index 1dd4c8b..d152d4b 100644
--- a/client/python/upbit/pkginfo.py
+++ b/client/python/upbit/pkginfo.py
@@ -29,7 +29,7 @@ def _get_versions(package_name):
 PACKAGE_NAME     = "upbit-client"
 
 OPEN_API_VERSION = "1.3.4"
-CURRENT_VERSION  = OPEN_API_VERSION+".0"
+CURRENT_VERSION  = OPEN_API_VERSION+".1"
 
 RELEASED_VERSION = _get_versions(PACKAGE_NAME)
 LATEST_VERSION   = RELEASED_VERSION[0]
diff --git a/mapper/swg_mapper.json b/mapper/swg_mapper.json
index 58ba8fa..c968932 100644
--- a/mapper/swg_mapper.json
+++ b/mapper/swg_mapper.json
@@ -829,6 +829,14 @@
             "description": "출금 원화 수량\n",
             "required": true,
             "type": "string"
+          },
+          {
+            "name": "two_factor_type",
+            "in": "formData",
+            "description": "2차 인증 수단 (기본 값 : kakao_pay)\n",
+            "required": false,
+            "type": "string",
+            "default": "kakao_pay"
           }
         ],
         "responses": {