diff --git a/api/resource/book/repository_test.go b/api/resource/book/repository_test.go
index 336f8cf..ef72675 100644
--- a/api/resource/book/repository_test.go
+++ b/api/resource/book/repository_test.go
@@ -38,7 +38,7 @@ func TestRepository_Create(t *testing.T) {
 	id := uuid.New()
 	mock.ExpectBegin()
 	mock.ExpectExec("^INSERT INTO \"books\" ").
-		WithArgs(id, "Title", "Author", testUtil.AnyTime{}, "", "", testUtil.AnyTime{}, testUtil.AnyTime{}, nil).
+		WithArgs(id, "Title", "Author", mockDB.AnyTime{}, "", "", mockDB.AnyTime{}, mockDB.AnyTime{}, nil).
 		WillReturnResult(sqlmock.NewResult(1, 1))
 	mock.ExpectCommit()
 
@@ -75,7 +75,7 @@ func TestRepository_Update(t *testing.T) {
 	id := uuid.New()
 	mock.ExpectBegin()
 	mock.ExpectExec("^UPDATE \"books\" SET").
-		WithArgs("Title", "Author", testUtil.AnyTime{}, id).
+		WithArgs("Title", "Author", mockDB.AnyTime{}, id).
 		WillReturnResult(sqlmock.NewResult(1, 1))
 	mock.ExpectCommit()
 
@@ -93,7 +93,7 @@ func TestRepository_Delete(t *testing.T) {
 	id := uuid.New()
 	mock.ExpectBegin()
 	mock.ExpectExec("^UPDATE \"books\" SET \"deleted_at\"").
-		WithArgs(testUtil.AnyTime{}, id).
+		WithArgs(mockDB.AnyTime{}, id).
 		WillReturnResult(sqlmock.NewResult(1, 1))
 	mock.ExpectCommit()
 
diff --git a/mock/db/db.go b/mock/db/db.go
index 9cd67c1..5f3af3f 100644
--- a/mock/db/db.go
+++ b/mock/db/db.go
@@ -1,6 +1,9 @@
 package db
 
 import (
+	"database/sql/driver"
+	"time"
+
 	"github.com/DATA-DOG/go-sqlmock"
 	"gorm.io/driver/postgres"
 	"gorm.io/gorm"
@@ -19,3 +22,10 @@ func NewMockDB() (*gorm.DB, sqlmock.Sqlmock, error) {
 
 	return gdb, mock, nil
 }
+
+type AnyTime struct{}
+
+func (a AnyTime) Match(v driver.Value) bool {
+	_, ok := v.(time.Time)
+	return ok
+}
diff --git a/util/test/test.go b/util/test/test.go
index 2536cdf..2c7bfb7 100644
--- a/util/test/test.go
+++ b/util/test/test.go
@@ -1,9 +1,7 @@
 package test
 
 import (
-	"database/sql/driver"
 	"testing"
-	"time"
 )
 
 func NoError(t *testing.T, err error) {
@@ -17,12 +15,3 @@ func Equal[T comparable](t *testing.T, x, y T) {
 		t.Fatalf("not equal: %v, %v", x, y)
 	}
 }
-
-// --- For sqlmock ---
-
-type AnyTime struct{}
-
-func (a AnyTime) Match(v driver.Value) bool {
-	_, ok := v.(time.Time)
-	return ok
-}