diff --git a/build.gradle b/build.gradle
index 62644730..aff9e9e3 100644
--- a/build.gradle
+++ b/build.gradle
@@ -19,37 +19,40 @@ repositories {
 }
 
 dependencies {
-
-    //스프링 종합 선물 세트
+    // 스프링 종합 선물 세트
     implementation 'org.springframework.boot:spring-boot-starter-web'
-    //롬북
-    compileOnly 'org.projectlombok:lombok'
-    annotationProcessor 'org.projectlombok:lombok'
-    //JUNIT
+
+    // 롬북
+    compileOnly 'org.projectlombok:lombok:1.18.28' // 최신 버전 확인
+    annotationProcessor 'org.projectlombok:lombok:1.18.28' // 최신 버전 확인
+
+    // JUnit
     testImplementation 'org.springframework.boot:spring-boot-starter-test'
-    //MOCKITO
+
+    // Mockito
     testImplementation 'org.mockito:mockito-core:3.12.4'
     testImplementation 'org.mockito:mockito-junit-jupiter:3.12.4'
 
-
-    //jsp 라이브러리 추가
+    // JSP 라이브러리 추가
     implementation 'javax.servlet:jstl'
     implementation 'org.apache.tomcat.embed:tomcat-embed-jasper'
-    //마리아 디비 라이브러리 추가
+
+    // MariaDB 라이브러리 추가
     implementation 'org.mariadb.jdbc:mariadb-java-client:3.3.3'
-    //Spring JDBC 모듈
+
+    // Spring JDBC 모듈
     implementation 'org.springframework.boot:spring-boot-starter-jdbc'
 
-    // 마이바티스 모듈
+    // MyBatis 모듈
     implementation 'org.mybatis.spring.boot:mybatis-spring-boot-starter:2.2.2'
 
     // 입력값 검증 라이브러리 validation
     implementation 'org.springframework.boot:spring-boot-starter-validation'
 
-    //스프링 시큐리티 모듈
+    // Spring Security 모듈
     implementation 'org.springframework.boot:spring-boot-starter-security'
 
-    //jackson : tostroing() -> json 형식으로 변환 가능
+    // Jackson
     implementation 'com.fasterxml.jackson.core:jackson-databind:2.13.3'
     implementation 'com.fasterxml.jackson.core:jackson-core:2.13.3'
     implementation 'com.fasterxml.jackson.core:jackson-annotations:2.13.3'
@@ -60,8 +63,4 @@ dependencies {
 
 tasks.named('test') {
     useJUnitPlatform()
-}
-dependencies {
-    compileOnly 'org.projectlombok:lombok:1.18.28' // 최신 버전 확인
-    annotationProcessor 'org.projectlombok:lombok:1.18.28' // 최신 버전 확인
-}
+}
\ No newline at end of file
diff --git a/src/main/java/com/workwave/API/CalendarApiController.java b/src/main/java/com/workwave/API/CalendarApiController.java
index 4e9e1b2e..63ce1a6c 100644
--- a/src/main/java/com/workwave/API/CalendarApiController.java
+++ b/src/main/java/com/workwave/API/CalendarApiController.java
@@ -1,6 +1,5 @@
 package com.workwave.API;
 
-import com.fasterxml.jackson.databind.ObjectMapper;
 import com.workwave.dto.schedule_dto.request.AllMyCalendarEventDto;
 import com.workwave.dto.schedule_dto.request.AllMyTeamCalendarEventDto;
 import com.workwave.entity.schedule.TodoList;
diff --git a/src/main/java/com/workwave/dto/replydto/SubReplyDetailDto.java b/src/main/java/com/workwave/dto/replydto/SubReplyDetailDto.java
index 0a4bdf72..76e3e770 100644
--- a/src/main/java/com/workwave/dto/replydto/SubReplyDetailDto.java
+++ b/src/main/java/com/workwave/dto/replydto/SubReplyDetailDto.java
@@ -1,7 +1,6 @@
 package com.workwave.dto.replydto;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
-import com.workwave.entity.board.Reply;
 import com.workwave.entity.board.SubReply;
 import lombok.*;
 
diff --git a/src/main/java/com/workwave/util/PasswordUtil.java b/src/main/java/com/workwave/util/PasswordUtil.java
index e0ffe8f1..5e3a5976 100644
--- a/src/main/java/com/workwave/util/PasswordUtil.java
+++ b/src/main/java/com/workwave/util/PasswordUtil.java
@@ -1,6 +1,6 @@
 package com.workwave.util;
 
-import org.mindrot.jbcrypt.BCrypt;
+import org.springframework.security.crypto.bcrypt.BCrypt;
 
 public class PasswordUtil {