diff --git a/jabiseo-api/src/main/java/com/jabiseo/auth/dto/ReissueRequest.java b/jabiseo-api/src/main/java/com/jabiseo/auth/dto/ReissueRequest.java
index 244da78..c1c8008 100644
--- a/jabiseo-api/src/main/java/com/jabiseo/auth/dto/ReissueRequest.java
+++ b/jabiseo-api/src/main/java/com/jabiseo/auth/dto/ReissueRequest.java
@@ -2,5 +2,8 @@
 
 import jakarta.validation.constraints.NotBlank;
 
-public record ReissueRequest(@NotBlank String refreshToken) {
+public record ReissueRequest(
+        @NotBlank
+        String refreshToken
+) {
 }
diff --git a/jabiseo-api/src/main/java/com/jabiseo/auth/dto/ReissueResponse.java b/jabiseo-api/src/main/java/com/jabiseo/auth/dto/ReissueResponse.java
index bc073d0..a88ab73 100644
--- a/jabiseo-api/src/main/java/com/jabiseo/auth/dto/ReissueResponse.java
+++ b/jabiseo-api/src/main/java/com/jabiseo/auth/dto/ReissueResponse.java
@@ -1,5 +1,6 @@
 package com.jabiseo.auth.dto;
 
-public record ReissueResponse(String accessToken) {
-
+public record ReissueResponse(
+        String accessToken
+) {
 }
diff --git a/jabiseo-domain/src/main/java/com/jabiseo/certificate/domain/Certificate.java b/jabiseo-domain/src/main/java/com/jabiseo/certificate/domain/Certificate.java
index a3916f5..f908eaa 100644
--- a/jabiseo-domain/src/main/java/com/jabiseo/certificate/domain/Certificate.java
+++ b/jabiseo-domain/src/main/java/com/jabiseo/certificate/domain/Certificate.java
@@ -20,6 +20,7 @@ public class Certificate {
 
     @Id
     @Column(name = "certificate_id")
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
 
     private String name;
diff --git a/jabiseo-domain/src/main/java/com/jabiseo/certificate/domain/Exam.java b/jabiseo-domain/src/main/java/com/jabiseo/certificate/domain/Exam.java
index 509ab06..b1f15c7 100644
--- a/jabiseo-domain/src/main/java/com/jabiseo/certificate/domain/Exam.java
+++ b/jabiseo-domain/src/main/java/com/jabiseo/certificate/domain/Exam.java
@@ -12,6 +12,7 @@ public class Exam {
 
     @Id
     @Column(name = "exam_id")
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
 
     private String description;
diff --git a/jabiseo-domain/src/main/java/com/jabiseo/certificate/domain/Subject.java b/jabiseo-domain/src/main/java/com/jabiseo/certificate/domain/Subject.java
index d5e7f25..44da625 100644
--- a/jabiseo-domain/src/main/java/com/jabiseo/certificate/domain/Subject.java
+++ b/jabiseo-domain/src/main/java/com/jabiseo/certificate/domain/Subject.java
@@ -12,6 +12,7 @@ public class Subject {
 
     @Id
     @Column(name = "subject_id")
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
 
     private String name;
diff --git a/jabiseo-domain/src/main/java/com/jabiseo/problem/domain/Problem.java b/jabiseo-domain/src/main/java/com/jabiseo/problem/domain/Problem.java
index 8da5087..363f02e 100644
--- a/jabiseo-domain/src/main/java/com/jabiseo/problem/domain/Problem.java
+++ b/jabiseo-domain/src/main/java/com/jabiseo/problem/domain/Problem.java
@@ -18,6 +18,7 @@ public class Problem {
 
     @Id
     @Column(name = "problem_id")
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
 
     private String description;