diff --git a/src/main/java/econo/buddybridge/auth/controller/AuthController.java b/src/main/java/econo/buddybridge/auth/controller/AuthController.java
index fbfb98f..8f2415d 100644
--- a/src/main/java/econo/buddybridge/auth/controller/AuthController.java
+++ b/src/main/java/econo/buddybridge/auth/controller/AuthController.java
@@ -11,6 +11,7 @@
 import econo.buddybridge.utils.api.ApiResponse.CustomBody;
 import econo.buddybridge.utils.api.ApiResponseGenerator;
 import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.tags.Tag;
 import jakarta.validation.Valid;
 import lombok.RequiredArgsConstructor;
@@ -50,7 +51,7 @@ public ApiResponse<CustomBody<AuthToken>> login(
 
     @Operation(summary = "Access Token, Refresh Token 재발급", description = "Refresh Token을 이용해 Access Token과 Refresh Token을 재발급합니다.")
     @PostMapping("/reissue")
-    public ApiResponse<CustomBody<AuthToken>> reissue(@MemberToken String token) {
+    public ApiResponse<CustomBody<AuthToken>> reissue(@Parameter(hidden = true) @MemberToken String token) {
         AuthToken authToken = authService.reissue(token);
         return ApiResponseGenerator.success(authToken, HttpStatus.OK);
     }
diff --git a/src/main/java/econo/buddybridge/auth/controller/OAuthController.java b/src/main/java/econo/buddybridge/auth/controller/OAuthController.java
index 4c2edc1..b03305e 100644
--- a/src/main/java/econo/buddybridge/auth/controller/OAuthController.java
+++ b/src/main/java/econo/buddybridge/auth/controller/OAuthController.java
@@ -12,6 +12,7 @@
 import econo.buddybridge.utils.api.ApiResponse.CustomBody;
 import econo.buddybridge.utils.api.ApiResponseGenerator;
 import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.tags.Tag;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpSession;
@@ -93,7 +94,7 @@ public ApiResponse<CustomBody<AuthToken>> loginWithToken(@RequestBody KakaoLogin
     // refresh token 재발급
     @Operation(summary = "Access Token, Refresh Token 재발급", description = "Refresh Token을 이용하여 두 토큰 모두 재발급합니다.")
     @PostMapping("/reissue")
-    public ApiResponse<CustomBody<AuthToken>> reissue(@MemberToken String token) {
+    public ApiResponse<CustomBody<AuthToken>> reissue(@Parameter(hidden = true) @MemberToken String token) {
         AuthToken authToken = oAuthLoginService.reissue(token);
         return ApiResponseGenerator.success(authToken, HttpStatus.OK);
     }
diff --git a/src/main/java/econo/buddybridge/common/exception/GlobalExceptionHandler.java b/src/main/java/econo/buddybridge/common/exception/GlobalExceptionHandler.java
index fbb1521..12d7ff1 100644
--- a/src/main/java/econo/buddybridge/common/exception/GlobalExceptionHandler.java
+++ b/src/main/java/econo/buddybridge/common/exception/GlobalExceptionHandler.java
@@ -6,6 +6,7 @@
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpStatusCode;
 import org.springframework.http.ResponseEntity;
+import org.springframework.lang.NonNull;
 import org.springframework.web.bind.MethodArgumentNotValidException;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 import org.springframework.web.bind.annotation.RestControllerAdvice;
@@ -24,13 +25,13 @@ public ApiResponse<CustomBody<ErrorResponse>> handleBusinessException(BusinessEx
 
     @Override
     protected ResponseEntity<Object> handleMethodArgumentNotValid(  // 파라미터 유효성 검사 실패 시 발생하는 예외 처리
-            MethodArgumentNotValidException ex,
-            HttpHeaders headers,
-            HttpStatusCode status,
-            WebRequest request
+            @NonNull MethodArgumentNotValidException ex,
+            @NonNull HttpHeaders headers,
+            @NonNull HttpStatusCode status,
+            @NonNull WebRequest request
     ) {
         // 공통 에러 코드로 처리
-        // 세부 검증 오류는 ErrorResponse.invalidParams에 담아서 반환
+        // 세부 검증 오류는 ErrorResponse#invalidParams에 담아서 반환
         ErrorCode errorCode = CommonErrorCode.INVALID_INPUT_VALUE;
 
         return ResponseEntity.status(errorCode.getHttpStatus())