diff --git a/dms-presentation/src/main/kotlin/team/aliens/dms/domain/outing/OutingWebAdapter.kt b/dms-presentation/src/main/kotlin/team/aliens/dms/domain/outing/OutingWebAdapter.kt
index 22302d1ec..808edd9d2 100644
--- a/dms-presentation/src/main/kotlin/team/aliens/dms/domain/outing/OutingWebAdapter.kt
+++ b/dms-presentation/src/main/kotlin/team/aliens/dms/domain/outing/OutingWebAdapter.kt
@@ -3,6 +3,7 @@ package team.aliens.dms.domain.outing
 import jakarta.servlet.http.HttpServletResponse
 import jakarta.validation.Valid
 import jakarta.validation.constraints.NotNull
+import org.springframework.format.annotation.DateTimeFormat
 import org.springframework.http.HttpStatus
 import org.springframework.validation.annotation.Validated
 import org.springframework.web.bind.annotation.DeleteMapping
@@ -77,8 +78,8 @@ class OutingWebAdapter(
 
     @GetMapping("/files")
     fun exportAllOutingApplications(
-        @RequestParam @NotNull start: LocalDate,
-        @RequestParam @NotNull end: LocalDate,
+        @RequestParam @DateTimeFormat(iso = DateTimeFormat.ISO.DATE) start: LocalDate,
+        @RequestParam @DateTimeFormat(iso = DateTimeFormat.ISO.DATE) end: LocalDate,
         httpResponse: HttpServletResponse
     ): ByteArray {
         val response = exportAllOutingApplicationsUseCase.execute(start, end)