diff --git a/server/tests/endpoints/BillsTest.php b/server/tests/endpoints/BillsTest.php
index 0de1a2e54..010dde523 100644
--- a/server/tests/endpoints/BillsTest.php
+++ b/server/tests/endpoints/BillsTest.php
@@ -1,9 +1,6 @@
 <?php
 namespace Robert2\Tests;
 
-use Robert2\API\I18n\I18n;
-use Robert2\API\Config\Config;
-
 final class BillsTest extends ApiTestCase
 {
     public function testGetBill()
@@ -63,7 +60,7 @@ public function testCreateBill()
     {
         $this->client->post('/api/events/2/bill');
         $this->assertStatusCode(SUCCESS_CREATED);
-        $newBillNumber = sprintf('%s-00002', date('Y'));
+        $newBillNumber = sprintf('%s-00001', date('Y'));
         $this->assertResponseData([
             'id'             => 2,
             'number'         => $newBillNumber,
@@ -114,7 +111,7 @@ public function testCreateBillWithDiscount()
     {
         $this->client->post('/api/events/2/bill', ['discountRate' => 50.0]);
         $this->assertStatusCode(SUCCESS_CREATED);
-        $newBillNumber = sprintf('%s-00002', date('Y'));
+        $newBillNumber = sprintf('%s-00001', date('Y'));
         $this->assertResponseData([
             'id'             => 2,
             'number'         => $newBillNumber,
diff --git a/server/tests/models/BillTest.php b/server/tests/models/BillTest.php
index f0125e9cf..e2d4f1eb0 100644
--- a/server/tests/models/BillTest.php
+++ b/server/tests/models/BillTest.php
@@ -5,8 +5,6 @@
 
 use Robert2\API\Models;
 use Robert2\API\Errors;
-use Robert2\API\I18n\I18n;
-use Robert2\API\Config\Config;
 
 final class BillTest extends ModelTestCase
 {
@@ -159,7 +157,7 @@ public function testCreateFromEventNotFound()
     public function testCreateFromEvent()
     {
         $result = $this->model->createFromEvent(2, 1, 25.9542);
-        $newBillNumber = sprintf('%s-00002', date('Y'));
+        $newBillNumber = sprintf('%s-00001', date('Y'));
         $expected = [
             'id'             => 2,
             'number'         => $newBillNumber,
@@ -231,6 +229,6 @@ public function testDeleteByNumber()
     public function testGetLastBillNumber()
     {
         $result = $this->model->getLastBillNumber();
-        $this->assertEquals(1, $result);
+        $this->assertEquals(0, $result);
     }
 }