diff --git a/projects/ucap-webmessenger-app/src/app/store/account/authentication/effects.ts b/projects/ucap-webmessenger-app/src/app/store/account/authentication/effects.ts
index aff0ba2b..a59fdb02 100644
--- a/projects/ucap-webmessenger-app/src/app/store/account/authentication/effects.ts
+++ b/projects/ucap-webmessenger-app/src/app/store/account/authentication/effects.ts
@@ -275,7 +275,7 @@ export class Effects {
             }
           }
 
-          if (!!loginRes.passwordExpired) {
+          if (!loginRes.passwordValid) {
             const result = await this.dialogService.open<
               ChangePasswordDialogComponent,
               ChangePasswordDialogData,
diff --git a/projects/ucap-webmessenger-protocol-authentication/src/lib/protocols/login.ts b/projects/ucap-webmessenger-protocol-authentication/src/lib/protocols/login.ts
index 6d02b73e..5a678a3b 100644
--- a/projects/ucap-webmessenger-protocol-authentication/src/lib/protocols/login.ts
+++ b/projects/ucap-webmessenger-protocol-authentication/src/lib/protocols/login.ts
@@ -79,7 +79,8 @@ export interface LoginResponse extends ProtocolResponse {
   hardPhoneSadn: string;
   fmcSadn: string;
   pbxIndex: number;
-  passwordExpired: boolean;
+  /** PW 유효 여부(s) | Y : 유효함 N : 만료됨 */
+  passwordValid: boolean;
   validAccount: boolean;
   validDevice: boolean;
   useableDevice: boolean;
@@ -183,7 +184,7 @@ export const decodeLogin: ProtocolDecoder<LoginResponse> = (
     hardPhoneSadn: message.bodyList[19],
     fmcSadn: message.bodyList[20],
     pbxIndex: message.bodyList[21],
-    passwordExpired: message.bodyList[22] === 'Y' ? true : false,
+    passwordValid: message.bodyList[22] === 'Y' ? true : false,
     validAccount: message.bodyList[23] === 'Y' ? true : false,
     validDevice: message.bodyList[24] === 'Y' ? true : false,
     useableDevice: message.bodyList[25] === 'Y' ? true : false,