diff --git a/back-skeleton/pom.xml b/back-skeleton/pom.xml
index c868e94a94be6eb962ba2b516681dc1acc08d135..25449a5bcee91cdca0e6a0142404c2be2e7e23cb 100644
--- a/back-skeleton/pom.xml
+++ b/back-skeleton/pom.xml
@@ -15,7 +15,6 @@
 	<description>Skeleton of an API project</description>
 	<properties>
 		<java.version>17</java.version>
-		<lombok.version>1.18.34</lombok.version>
 		<springdoc.version>2.2.0</springdoc.version>
 	</properties>
 	<dependencies>
@@ -38,12 +37,6 @@
 			<artifactId>spring-boot-starter-test</artifactId>
 			<scope>test</scope>
 		</dependency>
-		<dependency>
-			<groupId>org.projectlombok</groupId>
-			<artifactId>lombok</artifactId>
-			<version>${lombok.version}</version>
-			<scope>provided</scope>
-		</dependency>
 		<dependency>
 			<groupId>org.springdoc</groupId>
 			<artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
diff --git a/back-skeleton/src/main/java/com/takima/backskeleton/DTO/StudentDto.java b/back-skeleton/src/main/java/com/takima/backskeleton/DTO/StudentDto.java
index f0a938e4e71220209be8dac51139331a4cdb4d3d..1c5c92b6f57fd963eaaedf6296423b603d7a2e61 100644
--- a/back-skeleton/src/main/java/com/takima/backskeleton/DTO/StudentDto.java
+++ b/back-skeleton/src/main/java/com/takima/backskeleton/DTO/StudentDto.java
@@ -2,19 +2,83 @@ package com.takima.backskeleton.DTO;
 
 import com.takima.backskeleton.models.Course;
 import com.takima.backskeleton.models.Major;
-import com.takima.backskeleton.models.Student;
-import lombok.Builder;
-import lombok.Getter;
-import org.springframework.web.multipart.MultipartFile;
 
 import java.time.Instant;
 import java.util.List;
-@Builder
-@Getter
 public class StudentDto {
     private String firstName;
     private String lastName;
     private Instant birthdate;
     private List<Course> courses;
     private Major major;
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public Instant getBirthdate() {
+        return birthdate;
+    }
+
+    public List<Course> getCourses() {
+        return courses;
+    }
+
+    public Major getMajor() {
+        return major;
+    }
+
+    public static final class StudentDtoBuilder {
+        private String firstName;
+        private String lastName;
+        private Instant birthdate;
+        private List<Course> courses;
+        private Major major;
+
+        public StudentDtoBuilder() {
+        }
+
+        public static StudentDtoBuilder aStudentDto() {
+            return new StudentDtoBuilder();
+        }
+
+        public StudentDtoBuilder firstName(String firstName) {
+            this.firstName = firstName;
+            return this;
+        }
+
+        public StudentDtoBuilder lastName(String lastName) {
+            this.lastName = lastName;
+            return this;
+        }
+
+        public StudentDtoBuilder birthdate(Instant birthdate) {
+            this.birthdate = birthdate;
+            return this;
+        }
+
+        public StudentDtoBuilder courses(List<Course> courses) {
+            this.courses = courses;
+            return this;
+        }
+
+        public StudentDtoBuilder major(Major major) {
+            this.major = major;
+            return this;
+        }
+
+        public StudentDto build() {
+            StudentDto studentDto = new StudentDto();
+            studentDto.lastName = this.lastName;
+            studentDto.major = this.major;
+            studentDto.firstName = this.firstName;
+            studentDto.birthdate = this.birthdate;
+            studentDto.courses = this.courses;
+            return studentDto;
+        }
+    }
 }
diff --git a/back-skeleton/src/main/java/com/takima/backskeleton/DTO/StudentMapper.java b/back-skeleton/src/main/java/com/takima/backskeleton/DTO/StudentMapper.java
index 17a583bdab7c46bb0ec5ce602ff7bcdd87fe8ff9..23dc20374fa0b013e296452a6550a5cc3e25155b 100644
--- a/back-skeleton/src/main/java/com/takima/backskeleton/DTO/StudentMapper.java
+++ b/back-skeleton/src/main/java/com/takima/backskeleton/DTO/StudentMapper.java
@@ -17,7 +17,7 @@ public class StudentMapper {
     }
 
     public static StudentDto toDto (Student student){
-        return StudentDto.builder()
+        return new StudentDto.StudentDtoBuilder()
                 .firstName(student.getFirstName())
                 .lastName(student.getLastName())
                 .birthdate(student.getBirthdate())
diff --git a/back-skeleton/src/main/java/com/takima/backskeleton/controllers/CourseController.java b/back-skeleton/src/main/java/com/takima/backskeleton/controllers/CourseController.java
index b7425bf7a017facb226767951d6f47b29089e1b2..f59acc31947bcd2ba69315eda3de58914ecb0c86 100644
--- a/back-skeleton/src/main/java/com/takima/backskeleton/controllers/CourseController.java
+++ b/back-skeleton/src/main/java/com/takima/backskeleton/controllers/CourseController.java
@@ -2,7 +2,6 @@ package com.takima.backskeleton.controllers;
 
 import com.takima.backskeleton.models.Course;
 import com.takima.backskeleton.services.CourseService;
-import lombok.RequiredArgsConstructor;
 import org.springframework.web.bind.annotation.CrossOrigin;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -13,10 +12,13 @@ import java.util.List;
 @CrossOrigin
 @RequestMapping("courses")
 @RestController
-@RequiredArgsConstructor
 public class CourseController {
     private final CourseService courseService;
 
+    public CourseController(CourseService courseService) {
+        this.courseService = courseService;
+    }
+
     @GetMapping("")
     public List<Course> getAllCourses() {
         return courseService.findAll();
diff --git a/back-skeleton/src/main/java/com/takima/backskeleton/controllers/MajorController.java b/back-skeleton/src/main/java/com/takima/backskeleton/controllers/MajorController.java
index b5315436e961bf04170d34178c6838011e7e669d..67d121dddf0628831fe916a5bf666e8fe4127920 100644
--- a/back-skeleton/src/main/java/com/takima/backskeleton/controllers/MajorController.java
+++ b/back-skeleton/src/main/java/com/takima/backskeleton/controllers/MajorController.java
@@ -3,18 +3,24 @@ package com.takima.backskeleton.controllers;
 import com.takima.backskeleton.models.Major;
 import com.takima.backskeleton.models.Student;
 import com.takima.backskeleton.services.MajorService;
-import lombok.RequiredArgsConstructor;
-import org.springframework.web.bind.annotation.*;
+import org.springframework.web.bind.annotation.CrossOrigin;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
 
 import java.util.List;
 
 @CrossOrigin
 @RequestMapping("majors")
 @RestController
-@RequiredArgsConstructor
 public class MajorController {
     private final MajorService majorService;
 
+    public MajorController(MajorService majorService) {
+        this.majorService = majorService;
+    }
+
     @GetMapping("")
     public List<Major> findAll() {
         return majorService.findAll();
diff --git a/back-skeleton/src/main/java/com/takima/backskeleton/controllers/StudentController.java b/back-skeleton/src/main/java/com/takima/backskeleton/controllers/StudentController.java
index 4508fa5334c0b32c39e9232cbdcb9d822fc5aec3..d12708e3997cc7b8bbf4e57158f1acc992380198 100644
--- a/back-skeleton/src/main/java/com/takima/backskeleton/controllers/StudentController.java
+++ b/back-skeleton/src/main/java/com/takima/backskeleton/controllers/StudentController.java
@@ -3,18 +3,28 @@ package com.takima.backskeleton.controllers;
 import com.takima.backskeleton.DTO.StudentDto;
 import com.takima.backskeleton.models.Student;
 import com.takima.backskeleton.services.StudentService;
-import lombok.RequiredArgsConstructor;
-import org.springframework.web.bind.annotation.*;
-import org.springframework.web.multipart.MultipartFile;
+import org.springframework.web.bind.annotation.CrossOrigin;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
 
 import java.util.List;
 
 @CrossOrigin
 @RequestMapping("students")
 @RestController
-@RequiredArgsConstructor
 public class StudentController {
     private final StudentService studentService;
+
+    public StudentController(StudentService studentService) {
+        this.studentService = studentService;
+    }
+
     @GetMapping("")
     public List<Student> listStudents(@RequestParam(required = false) Integer majorId, @RequestParam(required = false) Integer courseId) {
         if (majorId != null && courseId !=null) {
diff --git a/back-skeleton/src/main/java/com/takima/backskeleton/models/Course.java b/back-skeleton/src/main/java/com/takima/backskeleton/models/Course.java
index bf8cd46b1fa43c7fe8e85422032affb74d252b8e..242e968893969a0981fc4af8b49469ce350b1c75 100644
--- a/back-skeleton/src/main/java/com/takima/backskeleton/models/Course.java
+++ b/back-skeleton/src/main/java/com/takima/backskeleton/models/Course.java
@@ -1,16 +1,17 @@
 package com.takima.backskeleton.models;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
-import jakarta.persistence.*;
-import lombok.Getter;
-import lombok.NoArgsConstructor;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.ManyToMany;
+import jakarta.persistence.Table;
 
 import java.util.List;
 
 @Entity
 @Table(name = "courses")
-@NoArgsConstructor
-@Getter
 public class Course {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
@@ -20,4 +21,23 @@ public class Course {
     @ManyToMany(mappedBy = "courses")
     @JsonIgnore
     List<Student> students;
+
+    public Course() {
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public Integer getHours() {
+        return hours;
+    }
+
+    public List<Student> getStudents() {
+        return students;
+    }
 }
diff --git a/back-skeleton/src/main/java/com/takima/backskeleton/models/Major.java b/back-skeleton/src/main/java/com/takima/backskeleton/models/Major.java
index 4746c4c0c82ccde04c18d5ff016b360056a11438..d42153d3719d223cba635b27527c817d46a50e38 100644
--- a/back-skeleton/src/main/java/com/takima/backskeleton/models/Major.java
+++ b/back-skeleton/src/main/java/com/takima/backskeleton/models/Major.java
@@ -1,16 +1,17 @@
 package com.takima.backskeleton.models;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
-import jakarta.persistence.*;
-import lombok.Getter;
-import lombok.NoArgsConstructor;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.OneToMany;
+import jakarta.persistence.Table;
 
 import java.util.List;
 
 @Entity
 @Table(name = "majors")
-@Getter
-@NoArgsConstructor
 public class Major {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
@@ -21,5 +22,23 @@ public class Major {
     @JsonIgnore
     private List<Student> students;
 
+    public Major() {
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public List<Student> getStudents() {
+        return students;
+    }
 }
 
diff --git a/back-skeleton/src/main/java/com/takima/backskeleton/models/Student.java b/back-skeleton/src/main/java/com/takima/backskeleton/models/Student.java
index 59e05c03efb417b06549999a0f82e2e14e6f7e98..3b16f32866fbcdf8745d40900594fe5b63bd3bd2 100644
--- a/back-skeleton/src/main/java/com/takima/backskeleton/models/Student.java
+++ b/back-skeleton/src/main/java/com/takima/backskeleton/models/Student.java
@@ -1,14 +1,22 @@
 package com.takima.backskeleton.models;
 
-import jakarta.persistence.*;
-import lombok.Getter;
+import jakarta.persistence.CascadeType;
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.JoinTable;
+import jakarta.persistence.ManyToMany;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
 
 import java.time.Instant;
 import java.util.List;
 
 @Entity
 @Table(name = "students")
-@Getter
 public class Student {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
@@ -39,6 +47,30 @@ public class Student {
     public Student() {
     }
 
+    public Long getId() {
+        return id;
+    }
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public Instant getBirthdate() {
+        return birthdate;
+    }
+
+    public List<Course> getCourses() {
+        return courses;
+    }
+
+    public Major getMajor() {
+        return major;
+    }
+
     public static class Builder {
         private Long id;
         private String firstName;
diff --git a/back-skeleton/src/main/java/com/takima/backskeleton/services/CourseService.java b/back-skeleton/src/main/java/com/takima/backskeleton/services/CourseService.java
index 68a553c6e7b69b8a648caa22515ec22cc1598be9..91374e36b084b51f9322cde26b86b4c807c8aa7b 100644
--- a/back-skeleton/src/main/java/com/takima/backskeleton/services/CourseService.java
+++ b/back-skeleton/src/main/java/com/takima/backskeleton/services/CourseService.java
@@ -2,18 +2,18 @@ package com.takima.backskeleton.services;
 
 import com.takima.backskeleton.DAO.CourseDao;
 import com.takima.backskeleton.models.Course;
-import com.takima.backskeleton.models.Major;
-import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Component;
 
-import java.util.ArrayList;
 import java.util.List;
 
 @Component
-@RequiredArgsConstructor
 public class CourseService {
     private final CourseDao courseDao;
 
+    public CourseService(CourseDao courseDao) {
+        this.courseDao = courseDao;
+    }
+
     public List<Course> findAll() {
         return courseDao.findAll();
     }
diff --git a/back-skeleton/src/main/java/com/takima/backskeleton/services/MajorService.java b/back-skeleton/src/main/java/com/takima/backskeleton/services/MajorService.java
index 03feb0f83a1796d353faf3d891e4afcd2da83f5d..c2a92142683395c04bfff46b588bd07cbc1b86a8 100644
--- a/back-skeleton/src/main/java/com/takima/backskeleton/services/MajorService.java
+++ b/back-skeleton/src/main/java/com/takima/backskeleton/services/MajorService.java
@@ -3,16 +3,19 @@ package com.takima.backskeleton.services;
 import com.takima.backskeleton.DAO.MajorDao;
 import com.takima.backskeleton.models.Major;
 import com.takima.backskeleton.models.Student;
-import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Component;
 
 import java.util.ArrayList;
 import java.util.List;
 
 @Component
-@RequiredArgsConstructor
 public class MajorService {
     private final MajorDao majorDao;
+
+    public MajorService(MajorDao majorDao) {
+        this.majorDao = majorDao;
+    }
+
     public List<Major> findAll() {
         Iterable<Major> it = majorDao.findAll();
         List <Major> majors = new ArrayList<>();
diff --git a/back-skeleton/src/main/java/com/takima/backskeleton/services/StudentService.java b/back-skeleton/src/main/java/com/takima/backskeleton/services/StudentService.java
index cc1e205bb02d50f5582d630d017db84fd1e7f5d4..be60038c11a350edf8cf515e446fe16f0b8251c4 100644
--- a/back-skeleton/src/main/java/com/takima/backskeleton/services/StudentService.java
+++ b/back-skeleton/src/main/java/com/takima/backskeleton/services/StudentService.java
@@ -4,8 +4,6 @@ import com.takima.backskeleton.DAO.StudentDao;
 import com.takima.backskeleton.DTO.StudentDto;
 import com.takima.backskeleton.DTO.StudentMapper;
 import com.takima.backskeleton.models.Student;
-import lombok.RequiredArgsConstructor;
-import org.springframework.stereotype.Component;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
@@ -15,10 +13,13 @@ import java.util.List;
 import java.util.NoSuchElementException;
 
 @Service
-@RequiredArgsConstructor
 public class StudentService {
     private final StudentDao studentDao;
 
+    public StudentService(StudentDao studentDao) {
+        this.studentDao = studentDao;
+    }
+
     public List<Student> findAll() {
         Iterable<Student> it = studentDao.findAll();
         List <Student> users = new ArrayList<>();