diff --git a/backend/ddang/src/main/java/com/ddang/ddang/auction/presentation/dto/request/CreateAuctionRequest.java b/backend/ddang/src/main/java/com/ddang/ddang/auction/presentation/dto/request/CreateAuctionRequest.java
index 7a0d51ddd..753fff9b5 100644
--- a/backend/ddang/src/main/java/com/ddang/ddang/auction/presentation/dto/request/CreateAuctionRequest.java
+++ b/backend/ddang/src/main/java/com/ddang/ddang/auction/presentation/dto/request/CreateAuctionRequest.java
@@ -4,6 +4,7 @@
 import jakarta.validation.constraints.NotEmpty;
 import jakarta.validation.constraints.NotNull;
 import jakarta.validation.constraints.Positive;
+
 import java.time.LocalDateTime;
 import java.util.List;
 
@@ -15,11 +16,11 @@ public record CreateAuctionRequest(
         String description,
 
         @NotNull(message = "입찰 단위가 입력되지 않았습니다.")
-        @Positive(message = "금액은 음수를 입력할 수 없습니다.")
+        @Positive(message = "금액은 양수로 입력해주세요.")
         Integer bidUnit,
 
         @NotNull(message = "시작가가 입력되지 않았습니다.")
-        @Positive(message = "금액은 음수를 입력할 수 없습니다.")
+        @Positive(message = "금액은 양수로 입력해주세요.")
         Integer startPrice,
 
         @NotNull(message = "마감 시간이 입력되지 않았습니다.")
@@ -27,7 +28,7 @@ public record CreateAuctionRequest(
         LocalDateTime closingTime,
 
         @NotNull(message = "하위 카테고리가 입력되지 않았습니다.")
-        @Positive(message = "카테고리 아이디는 음수 또는 0을 입력할 수 없습니다.")
+        @Positive(message = "잘못된 카테고리 입니다.")
         Long subCategoryId,
 
         List<Long> thirdRegionIds
diff --git a/backend/ddang/src/main/java/com/ddang/ddang/exception/GlobalExceptionHandler.java b/backend/ddang/src/main/java/com/ddang/ddang/exception/GlobalExceptionHandler.java
index e0749c2b3..be1e3504a 100644
--- a/backend/ddang/src/main/java/com/ddang/ddang/exception/GlobalExceptionHandler.java
+++ b/backend/ddang/src/main/java/com/ddang/ddang/exception/GlobalExceptionHandler.java
@@ -30,7 +30,6 @@
 import com.ddang.ddang.report.application.exception.InvalidReportAuctionException;
 import com.ddang.ddang.report.application.exception.InvalidReporterToAuctionException;
 import com.ddang.ddang.user.application.exception.UserNotFoundException;
-import org.springframework.context.support.DefaultMessageSourceResolvable;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.HttpStatusCode;
@@ -42,7 +41,6 @@
 import org.springframework.web.servlet.mvc.method.annotation.ResponseEntityExceptionHandler;
 
 import java.net.MalformedURLException;
-import java.util.stream.Collectors;
 
 @RestControllerAdvice
 public class GlobalExceptionHandler extends ResponseEntityExceptionHandler {
@@ -97,7 +95,7 @@ public ResponseEntity<ExceptionResponse> handleMessageNotFoundException(final Me
 
     @ExceptionHandler(UnableToChatException.class)
     public ResponseEntity<ExceptionResponse> handleUnableToChatException(final UnableToChatException ex) {
-        logger.warn(String.format(EXCEPTION_FORMAT, MessageNotFoundException.class), ex);
+        logger.warn(String.format(EXCEPTION_FORMAT, UnableToChatException.class), ex);
 
         return ResponseEntity.status(HttpStatus.BAD_REQUEST)
                              .body(new ExceptionResponse(ex.getMessage()));
@@ -336,10 +334,7 @@ protected ResponseEntity<Object> handleMethodArgumentNotValid(
     ) {
         logger.info(String.format(EXCEPTION_FORMAT, MethodArgumentNotValidException.class), ex);
 
-        final String message = ex.getFieldErrors()
-                                 .stream()
-                                 .map(DefaultMessageSourceResolvable::getDefaultMessage)
-                                 .collect(Collectors.joining(System.lineSeparator()));
+        final String message = ex.getFieldErrors().get(0).getDefaultMessage();
 
         return ResponseEntity.status(HttpStatus.BAD_REQUEST)
                              .body(new ExceptionResponse(message));