diff --git a/backend/src/project/dto/epic/EpicDeleteRequest.dto.ts b/backend/src/project/dto/epic/EpicDeleteRequest.dto.ts
index 39038812..7fade4a2 100644
--- a/backend/src/project/dto/epic/EpicDeleteRequest.dto.ts
+++ b/backend/src/project/dto/epic/EpicDeleteRequest.dto.ts
@@ -1,8 +1,8 @@
 import { Type } from 'class-transformer';
-import { IsNotEmpty, IsNumber, Matches, ValidateNested } from 'class-validator';
+import { IsInt, IsNotEmpty, Matches, ValidateNested } from 'class-validator';
 
 class Epic {
-  @IsNumber()
+  @IsInt()
   id: number;
 }
 
diff --git a/backend/src/project/dto/epic/EpicUpdateRequest.dto.ts b/backend/src/project/dto/epic/EpicUpdateRequest.dto.ts
index bc80637a..abce63fa 100644
--- a/backend/src/project/dto/epic/EpicUpdateRequest.dto.ts
+++ b/backend/src/project/dto/epic/EpicUpdateRequest.dto.ts
@@ -2,7 +2,7 @@ import { Type } from 'class-transformer';
 import {
   IsEnum,
   IsNotEmpty,
-  IsNumber,
+  IsInt,
   IsOptional,
   IsString,
   Matches,
@@ -12,7 +12,7 @@ import { EpicColor } from 'src/project/entity/epic.entity';
 
 class Epic {
   @IsNotEmpty()
-  @IsNumber()
+  @IsInt()
   id: number;
 
   @IsOptional()
diff --git a/backend/src/project/dto/link/LinkDeleteRequest.dto.ts b/backend/src/project/dto/link/LinkDeleteRequest.dto.ts
index 48eded70..5d47f8a3 100644
--- a/backend/src/project/dto/link/LinkDeleteRequest.dto.ts
+++ b/backend/src/project/dto/link/LinkDeleteRequest.dto.ts
@@ -1,8 +1,8 @@
 import { Type } from 'class-transformer';
-import { IsNotEmpty, IsNumber, Matches, ValidateNested } from 'class-validator';
+import { IsNotEmpty, IsInt, Matches, ValidateNested } from 'class-validator';
 
 class Link {
-  @IsNumber()
+  @IsInt()
   id: number;
 }
 
diff --git a/backend/src/project/dto/member/MemberUpdateRequest.dto.ts b/backend/src/project/dto/member/MemberUpdateRequest.dto.ts
index d438db4a..c6c4f82f 100644
--- a/backend/src/project/dto/member/MemberUpdateRequest.dto.ts
+++ b/backend/src/project/dto/member/MemberUpdateRequest.dto.ts
@@ -2,7 +2,7 @@ import { Type } from 'class-transformer';
 import {
   IsEnum,
   IsNotEmpty,
-  IsNumber,
+  IsInt,
   IsOptional,
   IsString,
   Matches,
@@ -11,7 +11,7 @@ import {
 import { MemberStatus } from '../../enum/MemberStatus.enum';
 
 class Content {
-  @IsNumber()
+  @IsInt()
   id: number;
 
   @IsString()
diff --git a/backend/src/project/dto/memo/MemoColorUpdateRequest.dto.ts b/backend/src/project/dto/memo/MemoColorUpdateRequest.dto.ts
index d9a97df3..7cae531d 100644
--- a/backend/src/project/dto/memo/MemoColorUpdateRequest.dto.ts
+++ b/backend/src/project/dto/memo/MemoColorUpdateRequest.dto.ts
@@ -2,14 +2,14 @@ import { Type } from 'class-transformer';
 import {
   IsEnum,
   IsNotEmpty,
-  IsNumber,
+  IsInt,
   Matches,
   ValidateNested,
 } from 'class-validator';
 import { memoColor } from '../../entity/memo.entity';
 
 class Content {
-  @IsNumber()
+  @IsInt()
   id: number;
 
   @IsEnum(memoColor)
diff --git a/backend/src/project/dto/memo/MemoDeleteRequest.dto.ts b/backend/src/project/dto/memo/MemoDeleteRequest.dto.ts
index 1f50afa5..f38c3e0f 100644
--- a/backend/src/project/dto/memo/MemoDeleteRequest.dto.ts
+++ b/backend/src/project/dto/memo/MemoDeleteRequest.dto.ts
@@ -1,8 +1,8 @@
 import { Type } from 'class-transformer';
-import { IsNotEmpty, IsNumber, Matches, ValidateNested } from 'class-validator';
+import { IsNotEmpty, IsInt, Matches, ValidateNested } from 'class-validator';
 
 class MemoId {
-  @IsNumber()
+  @IsInt()
   id: number;
 }