diff --git a/piikii-input-http/src/main/kotlin/com/piikii/input/http/controller/RoomApi.kt b/piikii-input-http/src/main/kotlin/com/piikii/input/http/controller/RoomApi.kt
index 27143027..2ae278c0 100644
--- a/piikii-input-http/src/main/kotlin/com/piikii/input/http/controller/RoomApi.kt
+++ b/piikii-input-http/src/main/kotlin/com/piikii/input/http/controller/RoomApi.kt
@@ -31,7 +31,7 @@ class RoomApi(
     @ResponseStatus(HttpStatus.CREATED)
     @PostMapping
     override fun create(
-        @Valid @RequestBody request: RoomSaveRequestForm,
+        @Valid @NotNull @RequestBody request: RoomSaveRequestForm,
     ): ResponseForm<SaveRoomResponse> {
         return ResponseForm(
             data = roomUseCase.create(request),
@@ -41,7 +41,7 @@ class RoomApi(
     @ResponseStatus(HttpStatus.OK)
     @PutMapping
     override fun modifyInformation(
-        @Valid @RequestBody request: RoomUpdateRequestForm,
+        @Valid @NotNull @RequestBody request: RoomUpdateRequestForm,
     ): ResponseForm<Unit> {
         roomUseCase.modify(request)
         return ResponseForm.EMPTY_RESPONSE
diff --git a/piikii-input-http/src/main/kotlin/com/piikii/input/http/controller/ScheduleApi.kt b/piikii-input-http/src/main/kotlin/com/piikii/input/http/controller/ScheduleApi.kt
index 30ab4057..683fe923 100644
--- a/piikii-input-http/src/main/kotlin/com/piikii/input/http/controller/ScheduleApi.kt
+++ b/piikii-input-http/src/main/kotlin/com/piikii/input/http/controller/ScheduleApi.kt
@@ -5,6 +5,7 @@ import com.piikii.application.port.input.dto.request.RegisterSchedulesRequest
 import com.piikii.application.port.input.dto.response.SchedulesResponse
 import com.piikii.input.http.controller.docs.ScheduleApiDocs
 import com.piikii.input.http.controller.dto.ResponseForm
+import jakarta.validation.Valid
 import jakarta.validation.constraints.NotNull
 import org.springframework.http.HttpStatus
 import org.springframework.validation.annotation.Validated
@@ -27,7 +28,7 @@ class ScheduleApi(
     @PutMapping
     override fun registerSchedules(
         @NotNull @PathVariable roomUid: UUID,
-        @RequestBody request: RegisterSchedulesRequest,
+        @Valid @NotNull @RequestBody request: RegisterSchedulesRequest,
     ): ResponseForm<Unit> {
         scheduleUseCase.registerSchedules(roomUid, request)
         return ResponseForm.EMPTY_RESPONSE
diff --git a/piikii-input-http/src/main/kotlin/com/piikii/input/http/controller/VoteApi.kt b/piikii-input-http/src/main/kotlin/com/piikii/input/http/controller/VoteApi.kt
index 55500729..57711289 100644
--- a/piikii-input-http/src/main/kotlin/com/piikii/input/http/controller/VoteApi.kt
+++ b/piikii-input-http/src/main/kotlin/com/piikii/input/http/controller/VoteApi.kt
@@ -33,7 +33,7 @@ class VoteApi(
     @PatchMapping("/deadline")
     override fun changeVoteDeadline(
         @NotNull @PathVariable roomUid: UUID,
-        @Valid @RequestBody request: VoteDeadlineSetRequest,
+        @Valid @NotNull @RequestBody request: VoteDeadlineSetRequest,
     ): ResponseForm<Unit> {
         roomUseCase.changeVoteDeadline(roomUid, request.password, request.voteDeadline)
         return ResponseForm.EMPTY_RESPONSE
@@ -52,7 +52,7 @@ class VoteApi(
     @PostMapping
     override fun vote(
         @NotNull @PathVariable roomUid: UUID,
-        @Valid @RequestBody voteSaveRequest: VoteSaveRequest,
+        @Valid @NotNull @RequestBody voteSaveRequest: VoteSaveRequest,
     ): ResponseForm<Unit> {
         voteUseCase.vote(roomUid, voteSaveRequest.toDomains())
         return ResponseForm.EMPTY_RESPONSE