diff --git a/server/db/db.go b/server/db/db.go
index 5f35cc9..79a5af2 100644
--- a/server/db/db.go
+++ b/server/db/db.go
@@ -5,6 +5,7 @@ import (
 
 	"github.com/authorizerdev/authorizer/server/constants"
 	"github.com/authorizerdev/authorizer/server/enum"
+	"github.com/google/uuid"
 	"gorm.io/driver/mysql"
 	"gorm.io/driver/postgres"
 	"gorm.io/driver/sqlite"
@@ -18,7 +19,7 @@ type Manager interface {
 	GetUsers() ([]User, error)
 	GetUserByEmail(email string) (User, error)
 	GetUserByID(email string) (User, error)
-	UpdateVerificationTime(verifiedAt int64, id uint) error
+	UpdateVerificationTime(verifiedAt int64, id uuid.UUID) error
 	AddVerification(verification VerificationRequest) (VerificationRequest, error)
 	GetVerificationByToken(token string) (VerificationRequest, error)
 	DeleteToken(email string) error
diff --git a/server/db/roles.go b/server/db/roles.go
index 2506ad0..cb9c5b2 100644
--- a/server/db/roles.go
+++ b/server/db/roles.go
@@ -1,15 +1,31 @@
 package db
 
-import "log"
+import (
+	"log"
+
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+)
 
 type Role struct {
-	ID   uint `gorm:"primaryKey"`
-	Role string
+	ID   uuid.UUID `gorm:"type:uuid;"`
+	Role string    `gorm:"unique"`
+}
+
+func (r *Role) BeforeCreate(tx *gorm.DB) (err error) {
+	r.ID = uuid.New()
+
+	return
 }
 
 // SaveRoles function to save roles
 func (mgr *manager) SaveRoles(roles []Role) error {
-	res := mgr.db.Create(&roles)
+	res := mgr.db.Clauses(
+		clause.OnConflict{
+			OnConstraint: "authorizer_roles_role_key",
+			DoNothing:    true,
+		}).Create(&roles)
 	if res.Error != nil {
 		log.Println(`Error saving roles`)
 		return res.Error
diff --git a/server/db/user.go b/server/db/user.go
index 8af9409..d16143d 100644
--- a/server/db/user.go
+++ b/server/db/user.go
@@ -4,11 +4,13 @@ import (
 	"log"
 	"time"
 
+	"github.com/google/uuid"
+	"gorm.io/gorm"
 	"gorm.io/gorm/clause"
 )
 
 type User struct {
-	ID              uint `gorm:"primaryKey"`
+	ID              uuid.UUID `gorm:"type:uuid;"`
 	FirstName       string
 	LastName        string
 	Email           string `gorm:"unique"`
@@ -21,6 +23,12 @@ type User struct {
 	Roles           string
 }
 
+func (u *User) BeforeCreate(tx *gorm.DB) (err error) {
+	u.ID = uuid.New()
+
+	return
+}
+
 // SaveUser function to add user even with email conflict
 func (mgr *manager) SaveUser(user User) (User, error) {
 	result := mgr.db.Clauses(
@@ -42,7 +50,7 @@ func (mgr *manager) UpdateUser(user User) (User, error) {
 	result := mgr.db.Clauses(
 		clause.OnConflict{
 			UpdateAll: true,
-			Columns:   []clause.Column{{Name: "id"}},
+			Columns:   []clause.Column{{Name: "email"}},
 		}).Create(&user)
 
 	if result.Error != nil {
@@ -85,7 +93,7 @@ func (mgr *manager) GetUserByID(id string) (User, error) {
 	return user, nil
 }
 
-func (mgr *manager) UpdateVerificationTime(verifiedAt int64, id uint) error {
+func (mgr *manager) UpdateVerificationTime(verifiedAt int64, id uuid.UUID) error {
 	user := &User{
 		ID: id,
 	}
diff --git a/server/db/verificationRequests.go b/server/db/verificationRequests.go
index c99fe1d..18a4ba1 100644
--- a/server/db/verificationRequests.go
+++ b/server/db/verificationRequests.go
@@ -3,12 +3,14 @@ package db
 import (
 	"log"
 
+	"github.com/google/uuid"
+	"gorm.io/gorm"
 	"gorm.io/gorm/clause"
 )
 
 type VerificationRequest struct {
-	ID         uint   `gorm:"primaryKey"`
-	Token      string `gorm:"index"`
+	ID         uuid.UUID `gorm:"type:uuid;"`
+	Token      string    `gorm:"index"`
 	Identifier string
 	ExpiresAt  int64
 	CreatedAt  int64  `gorm:"autoCreateTime"`
@@ -16,6 +18,12 @@ type VerificationRequest struct {
 	Email      string `gorm:"unique"`
 }
 
+func (v *VerificationRequest) BeforeCreate(tx *gorm.DB) (err error) {
+	v.ID = uuid.New()
+
+	return
+}
+
 // AddVerification function to add verification record
 func (mgr *manager) AddVerification(verification VerificationRequest) (VerificationRequest, error) {
 	result := mgr.db.Clauses(clause.OnConflict{