diff --git a/pom.xml b/pom.xml
index d6987fa..73204d8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -54,11 +54,6 @@
             <artifactId>postgresql</artifactId>
             <scope>runtime</scope>
         </dependency>
-        <dependency>
-            <groupId>org.projectlombok</groupId>
-            <artifactId>lombok</artifactId>
-            <optional>true</optional>
-        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>
@@ -85,22 +80,4 @@
         </dependency>
     </dependencies>
 
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-maven-plugin</artifactId>
-                <configuration>
-                    <excludes>
-                        <exclude>
-                            <groupId>org.projectlombok</groupId>
-                            <artifactId>lombok</artifactId>
-                        </exclude>
-                    </excludes>
-                </configuration>
-            </plugin>
-        </plugins>
-    </build>
-
-
 </project>
diff --git a/src/main/java/dev/kamalhm/reactivepostgres/controller/BalanceController.java b/src/main/java/dev/kamalhm/reactivepostgres/controller/BalanceController.java
index 03a30c0..6779157 100644
--- a/src/main/java/dev/kamalhm/reactivepostgres/controller/BalanceController.java
+++ b/src/main/java/dev/kamalhm/reactivepostgres/controller/BalanceController.java
@@ -3,8 +3,6 @@
 import dev.kamalhm.reactivepostgres.dto.CreateBalanceWebRequest;
 import dev.kamalhm.reactivepostgres.entity.Balance;
 import dev.kamalhm.reactivepostgres.repository.BalanceRepository;
-import lombok.RequiredArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -13,15 +11,17 @@
 
 @RestController
 @RequestMapping(value = "/api/balance")
-@RequiredArgsConstructor
-@Slf4j
 public class BalanceController {
 
     private final BalanceRepository balanceRepository;
 
+    public BalanceController(BalanceRepository balanceRepository) {
+        this.balanceRepository = balanceRepository;
+    }
+
     @PostMapping
     public Mono<Balance> createBalance(@RequestBody CreateBalanceWebRequest request) {
-        final Balance balance = new Balance(request.getMemberId(), request.getBalance());
+        final Balance balance = new Balance(request.memberId(), request.balance());
         return balanceRepository.save(balance);
     }
 
diff --git a/src/main/java/dev/kamalhm/reactivepostgres/controller/MemberController.java b/src/main/java/dev/kamalhm/reactivepostgres/controller/MemberController.java
index a530596..43f30c3 100644
--- a/src/main/java/dev/kamalhm/reactivepostgres/controller/MemberController.java
+++ b/src/main/java/dev/kamalhm/reactivepostgres/controller/MemberController.java
@@ -2,8 +2,6 @@
 
 import dev.kamalhm.reactivepostgres.entity.Member;
 import dev.kamalhm.reactivepostgres.repository.MemberRepository;
-import lombok.RequiredArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.lang3.RandomStringUtils;
 import org.springframework.web.bind.annotation.DeleteMapping;
 import org.springframework.web.bind.annotation.GetMapping;
@@ -19,12 +17,14 @@
 
 @RestController
 @RequestMapping(value = "/api/member")
-@RequiredArgsConstructor
-@Slf4j
 public class MemberController {
 
     private final MemberRepository memberRepository;
 
+    public MemberController(MemberRepository memberRepository) {
+        this.memberRepository = memberRepository;
+    }
+
     @GetMapping
     public Flux<Member> getAll() {
         return memberRepository.findAll();
diff --git a/src/main/java/dev/kamalhm/reactivepostgres/controller/TransactionController.java b/src/main/java/dev/kamalhm/reactivepostgres/controller/TransactionController.java
index e9f9015..c4d3bfd 100644
--- a/src/main/java/dev/kamalhm/reactivepostgres/controller/TransactionController.java
+++ b/src/main/java/dev/kamalhm/reactivepostgres/controller/TransactionController.java
@@ -3,8 +3,6 @@
 import dev.kamalhm.reactivepostgres.dto.CreateTransactionWebRequest;
 import dev.kamalhm.reactivepostgres.entity.Balance;
 import dev.kamalhm.reactivepostgres.service.TransactionalService;
-import lombok.RequiredArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
@@ -14,12 +12,14 @@
 
 @RestController
 @RequestMapping("/api/transaction")
-@RequiredArgsConstructor
-@Slf4j
 public class TransactionController {
 
     private final TransactionalService transactionalService;
 
+    public TransactionController(TransactionalService transactionalService) {
+        this.transactionalService = transactionalService;
+    }
+
     @PostMapping
     @Transactional
     public Mono<Balance> createTransaction(@RequestBody CreateTransactionWebRequest request) {
diff --git a/src/main/java/dev/kamalhm/reactivepostgres/dto/CreateBalanceWebRequest.java b/src/main/java/dev/kamalhm/reactivepostgres/dto/CreateBalanceWebRequest.java
index 404ee97..45b0489 100644
--- a/src/main/java/dev/kamalhm/reactivepostgres/dto/CreateBalanceWebRequest.java
+++ b/src/main/java/dev/kamalhm/reactivepostgres/dto/CreateBalanceWebRequest.java
@@ -1,10 +1,5 @@
 package dev.kamalhm.reactivepostgres.dto;
 
-import lombok.Data;
 
-@Data
-public class CreateBalanceWebRequest {
-
-    private Long memberId;
-    private Long balance;
+public record CreateBalanceWebRequest(Long memberId, Long balance) {
 }
diff --git a/src/main/java/dev/kamalhm/reactivepostgres/dto/CreateTransactionWebRequest.java b/src/main/java/dev/kamalhm/reactivepostgres/dto/CreateTransactionWebRequest.java
index 258d60e..18a0bea 100644
--- a/src/main/java/dev/kamalhm/reactivepostgres/dto/CreateTransactionWebRequest.java
+++ b/src/main/java/dev/kamalhm/reactivepostgres/dto/CreateTransactionWebRequest.java
@@ -1,11 +1,4 @@
 package dev.kamalhm.reactivepostgres.dto;
 
-import lombok.Data;
-
-@Data
-public class CreateTransactionWebRequest {
-
-  private Long from;
-  private Long to;
-  private Long amount;
+public record CreateTransactionWebRequest(Long from, Long to, Long amount) {
 }
\ No newline at end of file
diff --git a/src/main/java/dev/kamalhm/reactivepostgres/service/TransactionalService.java b/src/main/java/dev/kamalhm/reactivepostgres/service/TransactionalService.java
index d2aacca..3352567 100644
--- a/src/main/java/dev/kamalhm/reactivepostgres/service/TransactionalService.java
+++ b/src/main/java/dev/kamalhm/reactivepostgres/service/TransactionalService.java
@@ -6,26 +6,26 @@
 
 import java.util.Random;
 
-import lombok.RequiredArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import reactor.core.publisher.Mono;
 import reactor.util.function.Tuple2;
 
-@RequiredArgsConstructor
 @Service
-@Slf4j
 public class TransactionalService {
 
     private final BalanceRepository balanceRepository;
 
+    public TransactionalService(BalanceRepository balanceRepository) {
+        this.balanceRepository = balanceRepository;
+    }
+
     @Transactional
     public Mono<Balance> doTransaction(CreateTransactionWebRequest request) {
-        Long amount = request.getAmount();
+        Long amount = request.amount();
 
-        return Mono.zip(balanceRepository.findByMemberId(request.getFrom()),
-                        balanceRepository.findByMemberId(request.getTo()))
+        return Mono.zip(balanceRepository.findByMemberId(request.from()),
+                        balanceRepository.findByMemberId(request.to()))
                 .flatMap(balanceTuple -> executeTransaction(balanceTuple, amount));
     }
 
@@ -42,7 +42,6 @@ private Mono<Balance> increaseBalance(Balance toBalance, Long amount) {
     }
 
     private Mono<Balance> increaseBalance(Balance toBalance, Long amount, Double randomValue) {
-        log.info("random value {}", randomValue);
         if (randomValue < 0.5) {
             return Mono.error(new RuntimeException("randomized error"));
         }
@@ -72,5 +71,4 @@ private Mono<Balance> deductBalance(Balance fromBalance, Long amount) {
         return balanceRepository.save(updatedBalance);
     }
 
-
 }
diff --git a/src/test/java/dev/kamalhm/reactivepostgres/MemberControllerTest.java b/src/test/java/dev/kamalhm/reactivepostgres/MemberControllerTest.java
index d007b38..70816a0 100644
--- a/src/test/java/dev/kamalhm/reactivepostgres/MemberControllerTest.java
+++ b/src/test/java/dev/kamalhm/reactivepostgres/MemberControllerTest.java
@@ -4,7 +4,6 @@
 import dev.kamalhm.reactivepostgres.repository.MemberRepository;
 import io.r2dbc.spi.ConnectionFactories;
 import io.r2dbc.spi.ConnectionFactory;
-import lombok.extern.slf4j.Slf4j;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -22,7 +21,6 @@
 
 @SpringBootTest
 @AutoConfigureWebTestClient
-@Slf4j
 @ActiveProfiles(profiles = "test")
 class MemberControllerTest {
 
@@ -63,7 +61,6 @@ private void insertData() {
         memberRepository.deleteAll()
                 .thenMany(memberFlux)
                 .flatMap(memberRepository::save)
-                .doOnNext(member -> log.info("inserted {}", member))
                 .blockLast();
     }