diff --git a/domain/mathrank-auth-domain/src/main/java/kr/co/mathrank/domain/auth/client/KakaoMemberInfoResponse.java b/domain/mathrank-auth-domain/src/main/java/kr/co/mathrank/domain/auth/client/KakaoMemberInfoResponse.java
index 580fb8e2..cc2990e2 100644
--- a/domain/mathrank-auth-domain/src/main/java/kr/co/mathrank/domain/auth/client/KakaoMemberInfoResponse.java
+++ b/domain/mathrank-auth-domain/src/main/java/kr/co/mathrank/domain/auth/client/KakaoMemberInfoResponse.java
@@ -31,12 +31,17 @@ record Account (
 		String email
 	) {
 		public String getEmail() {
-			if (is_email_valid && is_email_verified) {
-				return email;
+			if (is_email_valid == null || is_email_verified == null) {
+				log.info("[KakaoMemberInfoResponse.getEmail] cannot parse email - valid and verified is null");
+				return null;
 			}
 
-			log.info("[KakaoMemberInfoResponse.getEmail] email is not available - email: {}", this);
-			return null;
+			if (!is_email_valid || !is_email_verified) {
+				log.info("[KakaoMemberInfoResponse.getEmail] email is not available - email: {}", this);
+				return null;
+			}
+
+			return email;
 		}
 	}