diff --git a/src/main/java/org/cotato/csquiz/api/attendance/controller/AttendanceController.java b/src/main/java/org/cotato/csquiz/api/attendance/controller/AttendanceController.java
index cb706242..75c8220f 100644
--- a/src/main/java/org/cotato/csquiz/api/attendance/controller/AttendanceController.java
+++ b/src/main/java/org/cotato/csquiz/api/attendance/controller/AttendanceController.java
@@ -79,11 +79,11 @@ public ResponseEntity<AttendancesResponse> findAttendancesByGeneration(@RequestP
                             description = "성공"
                     ),
                     @ApiResponse(
-                            responseCode = "AT-301",
+                            responseCode = "409",
                             description = "이미 출석을 완료함"
                     ),
                     @ApiResponse(
-                            responseCode = "AT-401",
+                            responseCode = "409",
                             description = "출석 시간이 아님"
                     )
             }
@@ -101,11 +101,11 @@ public ResponseEntity<AttendResponse> submitOfflineAttendanceRecord(@RequestBody
                             description = "성공"
                     ),
                     @ApiResponse(
-                            responseCode = "AT-301",
+                            responseCode = "409",
                             description = "이미 출석을 완료함"
                     ),
                     @ApiResponse(
-                            responseCode = "AT-401",
+                            responseCode = "409",
                             description = "출석 시간이 아님"
                     )
             })