diff --git a/src/main/java/com/goi/erp/auditing/ApplicationAuditAware.java b/src/main/java/com/goi/erp/auditing/ApplicationAuditAware.java
index 08b167c..77ef30d 100644
--- a/src/main/java/com/goi/erp/auditing/ApplicationAuditAware.java
+++ b/src/main/java/com/goi/erp/auditing/ApplicationAuditAware.java
@@ -9,10 +9,10 @@ import com.goi.erp.employee.EmployeeDetails;
 
 import java.util.Optional;
 
-public class ApplicationAuditAware implements AuditorAware<Integer> {
+public class ApplicationAuditAware implements AuditorAware<Long> {
 
     @Override
-    public Optional<Integer> getCurrentAuditor() {
+    public Optional<Long> getCurrentAuditor() {
         Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
 
         if (authentication == null ||
diff --git a/src/main/java/com/goi/erp/config/ApplicationConfig.java b/src/main/java/com/goi/erp/config/ApplicationConfig.java
index f2fdbb3..f353ac0 100644
--- a/src/main/java/com/goi/erp/config/ApplicationConfig.java
+++ b/src/main/java/com/goi/erp/config/ApplicationConfig.java
@@ -53,7 +53,7 @@ public class ApplicationConfig {
 	}
 
 	@Bean
-	public AuditorAware<Integer> auditorAware() {
+	public AuditorAware<Long> auditorAware() {
 		return new ApplicationAuditAware();
 	}
 
diff --git a/src/main/java/com/goi/erp/employee/Employee.java b/src/main/java/com/goi/erp/employee/Employee.java
index e4bb169..7c1d739 100644
--- a/src/main/java/com/goi/erp/employee/Employee.java
+++ b/src/main/java/com/goi/erp/employee/Employee.java
@@ -23,7 +23,7 @@ public class Employee {
 	@Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     @Column(name = "emp_id")
-    private Integer empId;          // 내부 PK, 외부 노출 X
+    private Long empId;          // 내부 PK, 외부 노출 X
 
     @Column(name = "emp_uuid", unique = true, nullable = false)
     private UUID empUuid;           // 외부 키로 사용
@@ -41,7 +41,7 @@ public class Employee {
     private String empLastName;
 
     @Column(name = "emp_dept_id")
-    private Integer empDeptId;
+    private Long empDeptId;
 
     @Column(name = "emp_status", columnDefinition = "CHAR(1)")
     private String empStatus;
diff --git a/src/main/java/com/goi/erp/employee/EmployeeRole.java b/src/main/java/com/goi/erp/employee/EmployeeRole.java
index 6f43600..9af12ce 100644
--- a/src/main/java/com/goi/erp/employee/EmployeeRole.java
+++ b/src/main/java/com/goi/erp/employee/EmployeeRole.java
@@ -30,7 +30,7 @@ public class EmployeeRole {
 	@Id
 	@GeneratedValue(strategy = GenerationType.IDENTITY)
 	@Column(name = "emr_id")
-	private Integer emrId;          // 내부 PK
+	private Long emrId;          // 내부 PK
 
 	@Column(name = "emr_uuid", unique = true, nullable = false)
 	private UUID emrUuid;           // 외부용 UUID
diff --git a/src/main/java/com/goi/erp/employee/EmployeeRoleRepository.java b/src/main/java/com/goi/erp/employee/EmployeeRoleRepository.java
index 5bf3d3c..573f498 100644
--- a/src/main/java/com/goi/erp/employee/EmployeeRoleRepository.java
+++ b/src/main/java/com/goi/erp/employee/EmployeeRoleRepository.java
@@ -15,5 +15,5 @@ public interface EmployeeRoleRepository extends JpaRepository<EmployeeRole, Inte
 		    WHERE er.employee.id = :empId
 		      AND er.emrRevokedAt IS NULL
 		""")
-    List<EmployeeRole> findActiveRolesByEmployeeId(Integer empId);
+    List<EmployeeRole> findActiveRolesByEmployeeId(Long empId);
 }
\ No newline at end of file
diff --git a/src/main/java/com/goi/erp/permission/PermissionInfo.java b/src/main/java/com/goi/erp/permission/PermissionInfo.java
index 0b9e865..546bb91 100644
--- a/src/main/java/com/goi/erp/permission/PermissionInfo.java
+++ b/src/main/java/com/goi/erp/permission/PermissionInfo.java
@@ -26,7 +26,7 @@ public class PermissionInfo {
 	@Id
 	@GeneratedValue(strategy = GenerationType.IDENTITY)
 	@Column(name = "perm_id")
-	private Integer permId;
+	private Long permId;
 
 	@Column(name = "perm_uuid", nullable = false, updatable = false)
 	private UUID permUuid;
diff --git a/src/main/java/com/goi/erp/role/RoleInfo.java b/src/main/java/com/goi/erp/role/RoleInfo.java
index 786400b..b4680fb 100644
--- a/src/main/java/com/goi/erp/role/RoleInfo.java
+++ b/src/main/java/com/goi/erp/role/RoleInfo.java
@@ -28,7 +28,7 @@ public class RoleInfo {
 	@Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     @Column(name = "role_id")
-    private Integer roleId;
+    private Long roleId;
 
     @Column(name = "role_uuid", unique = true, nullable = false)
     private UUID roleUuid;
diff --git a/src/main/java/com/goi/erp/role/RolePermission.java b/src/main/java/com/goi/erp/role/RolePermission.java
index 14d5b0e..acce332 100644
--- a/src/main/java/com/goi/erp/role/RolePermission.java
+++ b/src/main/java/com/goi/erp/role/RolePermission.java
@@ -27,7 +27,7 @@ public class RolePermission {
 	@Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     @Column(name = "rpr_id")
-    private Integer id;
+    private Long id;
 
     @ManyToOne(fetch = FetchType.LAZY)
     @JoinColumn(name = "rpr_role_id", nullable = false)
diff --git a/src/main/java/com/goi/erp/role/RolePermissionRepository.java b/src/main/java/com/goi/erp/role/RolePermissionRepository.java
index cd00556..6754fc4 100644
--- a/src/main/java/com/goi/erp/role/RolePermissionRepository.java
+++ b/src/main/java/com/goi/erp/role/RolePermissionRepository.java
@@ -12,7 +12,7 @@ public interface RolePermissionRepository extends JpaRepository<RolePermission,
 
     // 특정 Role의 모든 권한 조회
     @Query("SELECT r FROM RolePermission r WHERE r.roleInfo.id = :roleId")
-    List<RolePermission> findByRoleId(@Param("roleId") Integer roleId);
+    List<RolePermission> findByRoleId(@Param("roleId") Long roleId);
 
     // Role과 Permission 매핑 존재 여부 확인
     @Query("""
@@ -21,6 +21,6 @@ public interface RolePermissionRepository extends JpaRepository<RolePermission,
         WHERE r.roleInfo.id = :roleId
           AND r.permissionInfo.id = :permId
     """)
-    boolean existsByRoleInfoAndPermissionInfo(@Param("roleId") Integer roleId,
-                                              @Param("permId") Integer permId);
+    boolean existsByRoleInfoAndPermissionInfo(@Param("roleId") Long roleId,
+                                              @Param("permId") Long permId);
 }
\ No newline at end of file
diff --git a/src/main/java/com/goi/erp/token/Token.java b/src/main/java/com/goi/erp/token/Token.java
index 1551330..db14bdb 100644
--- a/src/main/java/com/goi/erp/token/Token.java
+++ b/src/main/java/com/goi/erp/token/Token.java
@@ -29,7 +29,7 @@ public class Token {
 	@Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     @Column(name = "emt_id")
-    private Integer id;
+    private Long id;
 
     @ManyToOne(fetch = FetchType.LAZY)
     @JoinColumn(name = "emt_emp_id", nullable = false)
diff --git a/src/main/java/com/goi/erp/token/TokenRepository.java b/src/main/java/com/goi/erp/token/TokenRepository.java
index 01e2788..0ebc347 100644
--- a/src/main/java/com/goi/erp/token/TokenRepository.java
+++ b/src/main/java/com/goi/erp/token/TokenRepository.java
@@ -14,7 +14,7 @@ public interface TokenRepository extends JpaRepository<Token, Integer> {
         where t.employee.id = :employeeId
           and (t.expired = false or t.revoked = false)
         """)
-    List<Token> findAllValidTokenByEmployee(Integer employeeId);
+    List<Token> findAllValidTokenByEmployee(Long employeeId);
 
     Optional<Token> findByToken(String token);