diff --git a/internal/token/repository.go b/internal/token/repository.go
index 296cffd..0f48e49 100644
--- a/internal/token/repository.go
+++ b/internal/token/repository.go
@@ -13,6 +13,6 @@ type Repository interface {
 }
 
 var (
-	ErrExist    error = errors.New("token already exist")
-	ErrNotExist error = errors.New("token not exist")
+	ErrExist    = errors.New("token already exist")
+	ErrNotExist = errors.New("token not exist")
 )
diff --git a/internal/token/repository/bolt/bolt_token.go b/internal/token/repository/bolt/bolt_token.go
index b3be95a..d141bbe 100644
--- a/internal/token/repository/bolt/bolt_token.go
+++ b/internal/token/repository/bolt/bolt_token.go
@@ -46,6 +46,7 @@ func (repo *boltTokenRepository) Create(ctx context.Context, accessToken *domain
 	}
 
 	if err = repo.db.Update(func(tx *bolt.Tx) error {
+		//nolint: exhaustivestruct
 		bkt, err := tx.CreateBucketIfNotExists(Token{}.Bucket())
 		if err != nil {
 			return errors.Wrap(err, "cannot create bucket")
diff --git a/internal/token/repository/bolt/bolt_token_test.go b/internal/token/repository/bolt/bolt_token_test.go
index 21c5e23..a60d949 100644
--- a/internal/token/repository/bolt/bolt_token_test.go
+++ b/internal/token/repository/bolt/bolt_token_test.go
@@ -19,12 +19,15 @@ import (
 func TestCreate(t *testing.T) {
 	t.Parallel()
 
+	//nolint: exhaustivestruct
 	db, cleanup := util.TestBolt(t, repository.Token{}.Bucket())
 	t.Cleanup(cleanup)
 
 	require.NoError(t, db.Update(func(tx *bolt.Tx) error {
+		//nolint: exhaustivestruct
 		_, err := tx.CreateBucketIfNotExists(repository.Token{}.Bucket())
 
+		//nolint: wrapcheck
 		return err
 	}))
 
@@ -38,7 +41,8 @@ func TestCreate(t *testing.T) {
 	require.NoError(t, db.View(func(tx *bolt.Tx) (err error) {
 		dto := new(repository.Token)
 
-		return dto.Bind(tx.Bucket(repository.Token{}.Bucket()).Get([]byte(accessToken.AccessToken)), result)
+		//nolint: wrapcheck
+		return dto.Bind(tx.Bucket(dto.Bucket()).Get([]byte(accessToken.AccessToken)), result)
 	}))
 	assert.Equal(t, accessToken, result)
 
@@ -48,12 +52,14 @@ func TestCreate(t *testing.T) {
 func TestGet(t *testing.T) {
 	t.Parallel()
 
+	//nolint: exhaustivestruct
 	db, cleanup := util.TestBolt(t, repository.Token{}.Bucket())
 	t.Cleanup(cleanup)
 
 	accessToken := domain.TestToken(t)
 
 	require.NoError(t, db.Update(func(tx *bolt.Tx) error {
+		//nolint: exhaustivestruct
 		bkt, err := tx.CreateBucketIfNotExists(repository.Token{}.Bucket())
 		if err != nil {
 			return errors.Wrap(err, "cannot create bucket")
diff --git a/internal/token/repository/memory/memory_token.go b/internal/token/repository/memory/memory_token.go
index 5b76efa..2e3c1eb 100644
--- a/internal/token/repository/memory/memory_token.go
+++ b/internal/token/repository/memory/memory_token.go
@@ -2,7 +2,6 @@ package memory
 
 import (
 	"context"
-	"errors"
 	"path"
 	"sync"
 
@@ -18,8 +17,6 @@ type memoryTokenRepository struct {
 
 const DefaultPathPrefix string = "tokens"
 
-var ErrExist error = errors.New("token already exist")
-
 func NewMemoryTokenRepository(store *sync.Map) token.Repository {
 	return &memoryTokenRepository{
 		store: store,
@@ -33,7 +30,7 @@ func (repo *memoryTokenRepository) Create(ctx context.Context, accessToken *doma
 	}
 
 	if t != nil {
-		return ErrExist
+		return token.ErrExist
 	}
 
 	repo.store.Store(path.Join(DefaultPathPrefix, accessToken.AccessToken), accessToken)
diff --git a/internal/token/repository/memory/memory_token_test.go b/internal/token/repository/memory/memory_token_test.go
index 42f8b16..8223ae6 100644
--- a/internal/token/repository/memory/memory_token_test.go
+++ b/internal/token/repository/memory/memory_token_test.go
@@ -10,6 +10,7 @@ import (
 	"github.com/stretchr/testify/require"
 
 	"source.toby3d.me/website/oauth/internal/domain"
+	"source.toby3d.me/website/oauth/internal/token"
 	repository "source.toby3d.me/website/oauth/internal/token/repository/memory"
 )
 
@@ -17,27 +18,27 @@ func TestCreate(t *testing.T) {
 	t.Parallel()
 
 	store := new(sync.Map)
-	token := domain.TestToken(t)
+	accessToken := domain.TestToken(t)
 
 	repo := repository.NewMemoryTokenRepository(store)
-	require.NoError(t, repo.Create(context.TODO(), token))
+	require.NoError(t, repo.Create(context.TODO(), accessToken))
 
-	result, ok := store.Load(path.Join(repository.DefaultPathPrefix, token.AccessToken))
+	result, ok := store.Load(path.Join(repository.DefaultPathPrefix, accessToken.AccessToken))
 	assert.True(t, ok)
-	assert.Equal(t, token, result)
+	assert.Equal(t, accessToken, result)
 
-	assert.ErrorIs(t, repo.Create(context.TODO(), token), repository.ErrExist)
+	assert.ErrorIs(t, repo.Create(context.TODO(), accessToken), token.ErrExist)
 }
 
 func TestGet(t *testing.T) {
 	t.Parallel()
 
 	store := new(sync.Map)
-	token := domain.TestToken(t)
+	accessToken := domain.TestToken(t)
 
-	store.Store(path.Join(repository.DefaultPathPrefix, token.AccessToken), token)
+	store.Store(path.Join(repository.DefaultPathPrefix, accessToken.AccessToken), accessToken)
 
-	result, err := repository.NewMemoryTokenRepository(store).Get(context.TODO(), token.AccessToken)
+	result, err := repository.NewMemoryTokenRepository(store).Get(context.TODO(), accessToken.AccessToken)
 	assert.NoError(t, err)
-	assert.Equal(t, token, result)
+	assert.Equal(t, accessToken, result)
 }
diff --git a/internal/token/usecase.go b/internal/token/usecase.go
index 1efefc7..126438b 100644
--- a/internal/token/usecase.go
+++ b/internal/token/usecase.go
@@ -12,4 +12,4 @@ type UseCase interface {
 	Revoke(ctx context.Context, accessToken string) error
 }
 
-var ErrRevoke error = errors.New("this token has been revoked")
+var ErrRevoke = errors.New("this token has been revoked")
diff --git a/internal/token/usecase/token_ucase.go b/internal/token/usecase/token_ucase.go
index 2678f5b..befcdd8 100644
--- a/internal/token/usecase/token_ucase.go
+++ b/internal/token/usecase/token_ucase.go
@@ -29,7 +29,7 @@ func NewTokenUseCase(tokens token.Repository, configer config.UseCase) token.Use
 func (useCase *tokenUseCase) Verify(ctx context.Context, accessToken string) (*domain.Token, error) {
 	find, err := useCase.tokens.Get(ctx, accessToken)
 	if err != nil && !xerrors.Is(err, token.ErrNotExist) {
-		return nil, err
+		return nil, errors.Wrap(err, "cannot ckeck token in store")
 	}
 
 	if find != nil {