diff --git a/app/Console/Commands/ImportUlbXmlData.php b/app/Console/Commands/ImportUlbXmlData.php
index 85f752c..c998060 100644
--- a/app/Console/Commands/ImportUlbXmlData.php
+++ b/app/Console/Commands/ImportUlbXmlData.php
@@ -4,6 +4,7 @@ namespace App\Console\Commands;
 
 use App\Handlers\UlbXmlImportHandler;
 use Illuminate\Console\Command;
+use Illuminate\Support\Facades\DB;
 
 class ImportUlbXmlData extends Command
 {
@@ -38,6 +39,13 @@ class ImportUlbXmlData extends Command
      */
     public function handle()
     {
+        DB::statement("SET FOREIGN_KEY_CHECKS=0");
+        DB::table('verses')->truncate();
+        DB::table('chapters')->truncate();
+        DB::table('books')->truncate();
+        DB::table('words')->truncate();
+        DB::statement("SET FOREIGN_KEY_CHECKS=1");
+
         $importHandler = new UlbXmlImportHandler();
         $importHandler->run();
     }
diff --git a/tests/Unit/ExampleTest.php b/tests/Unit/ExampleTest.php
deleted file mode 100644
index 358cfc8..0000000
--- a/tests/Unit/ExampleTest.php
+++ /dev/null
@@ -1,18 +0,0 @@
-<?php
-
-namespace Tests\Unit;
-
-use PHPUnit\Framework\TestCase;
-
-class ExampleTest extends TestCase
-{
-    /**
-     * A basic test example.
-     *
-     * @return void
-     */
-    public function testBasicTest()
-    {
-        $this->assertTrue(true);
-    }
-}