diff --git a/src/main/java/mvc/promiseme/project/entity/Project.java b/src/main/java/mvc/promiseme/project/entity/Project.java
index ba9a1d8..3ef24a5 100644
--- a/src/main/java/mvc/promiseme/project/entity/Project.java
+++ b/src/main/java/mvc/promiseme/project/entity/Project.java
@@ -29,17 +29,17 @@ public class Project {
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long projectId;
 
-    @Column(nullable = false, length = 50)
+    @Column(length = 50)
     private String name;
 
     @Column(nullable = false)
     @Enumerated(EnumType.STRING)
     private Progress isProgress;
 
-    @Column(nullable = false, length = 50)
+    @Column(length = 50)
     private String category;
 
-    @Column(nullable = false, length = 100)
+    @Column(length = 100)
     private String topic;
 
     private LocalDate start;
diff --git a/src/main/java/mvc/promiseme/project/repository/ProjectRepository.java b/src/main/java/mvc/promiseme/project/repository/ProjectRepository.java
index 10bb97b..23fbfa0 100644
--- a/src/main/java/mvc/promiseme/project/repository/ProjectRepository.java
+++ b/src/main/java/mvc/promiseme/project/repository/ProjectRepository.java
@@ -11,7 +11,7 @@
 
 public interface ProjectRepository extends JpaRepository<Project,Long> {
 
-    @Query("SELECT CAST((SELECT COUNT(t1) FROM Todo t1 WHERE t1.project.id = :projectId AND t1.isCompleted = 'COMPLETE') / COUNT(t2) * 100 AS INTEGER) " +
+    @Query("SELECT CAST((SELECT COUNT(t1) FROM Todo t1 WHERE t1.project.id = :projectId AND t1.isCompleted = true) / COUNT(t2) * 100 AS INTEGER) " +
             "FROM Todo t2 WHERE t2.project.id = :projectId")
     int getProgress(@Param("projectId") Long projecrtId);
     @Query("SELECT datediff(p.deadline, now()) From Project p where p.projectId = :projectId")
diff --git a/src/main/java/mvc/promiseme/todo/dto/TodoResponseDTO.java b/src/main/java/mvc/promiseme/todo/dto/TodoResponseDTO.java
index c168b01..463a2f0 100644
--- a/src/main/java/mvc/promiseme/todo/dto/TodoResponseDTO.java
+++ b/src/main/java/mvc/promiseme/todo/dto/TodoResponseDTO.java
@@ -1,7 +1,6 @@
 package mvc.promiseme.todo.dto;
 
 import lombok.*;
-import mvc.promiseme.todo.entity.ToDoStatus;
 import mvc.promiseme.todo.entity.Todo;
 
 import java.util.List;
@@ -16,7 +15,7 @@ public class TodoResponseDTO {
 
     private Long todoId;
     private String content;
-    private ToDoStatus isCompleted;
+    private boolean isCompleted;
 
     public List<TodoResponseDTO> convertToDtoList(List<Todo> todoList) {
         return todoList.stream()
@@ -28,7 +27,7 @@ private TodoResponseDTO convertToDto(Todo todo) {
         return TodoResponseDTO.builder()
                 .todoId(todo.getToDoId())
                 .content(todo.getContent())
-                .isCompleted(todo.getIsCompleted())
+                .isCompleted(todo.isCompleted())
                 .build();
     }
 }
diff --git a/src/main/java/mvc/promiseme/todo/entity/ToDoStatus.java b/src/main/java/mvc/promiseme/todo/entity/ToDoStatus.java
deleted file mode 100644
index 26da147..0000000
--- a/src/main/java/mvc/promiseme/todo/entity/ToDoStatus.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package mvc.promiseme.todo.entity;
-
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-
-@AllArgsConstructor
-@Getter
-public enum ToDoStatus {
-    INCOMPLETE("미완료"),
-    COMPLETE("완료");
-
-    private String value;
-}
diff --git a/src/main/java/mvc/promiseme/todo/entity/Todo.java b/src/main/java/mvc/promiseme/todo/entity/Todo.java
index 3ea46ca..cbf3897 100644
--- a/src/main/java/mvc/promiseme/todo/entity/Todo.java
+++ b/src/main/java/mvc/promiseme/todo/entity/Todo.java
@@ -23,9 +23,8 @@ public class Todo {
     private String content;
 
     @Column(nullable = false)
-    @Enumerated(EnumType.STRING)
     @Builder.Default
-    private ToDoStatus isCompleted = ToDoStatus.INCOMPLETE;
+    private boolean isCompleted = false;
 
     private LocalDate todoDate;
     private LocalDate createdAt;
diff --git a/src/main/java/mvc/promiseme/todo/service/TodoServiceImpl.java b/src/main/java/mvc/promiseme/todo/service/TodoServiceImpl.java
index 991192e..2033ba9 100644
--- a/src/main/java/mvc/promiseme/todo/service/TodoServiceImpl.java
+++ b/src/main/java/mvc/promiseme/todo/service/TodoServiceImpl.java
@@ -7,7 +7,6 @@
 import mvc.promiseme.project.repository.ProjectRepository;
 import mvc.promiseme.todo.dto.TodoRequestDTO;
 import mvc.promiseme.todo.dto.TodoResponseDTO;
-import mvc.promiseme.todo.entity.ToDoStatus;
 import mvc.promiseme.todo.entity.Todo;
 import mvc.promiseme.todo.repository.TodoRepository;
 import mvc.promiseme.users.entity.Users;
@@ -54,9 +53,8 @@ public String check(Long todoId){
     }
 
     private Todo updateStatus(Todo todo){
-        ToDoStatus status = todo.getIsCompleted();
-        if(status.equals(ToDoStatus.COMPLETE)) todo.setIsCompleted(ToDoStatus.INCOMPLETE);
-        else if (status.equals(ToDoStatus.INCOMPLETE)) todo.setIsCompleted(ToDoStatus.COMPLETE);
+        if(todo.isCompleted() == true) todo.setCompleted(false);
+        else if (todo.isCompleted() == false) todo.setCompleted(true);
         return todo;
     }