diff --git a/tests/unit/API/APITest.php b/tests/unit/API/APITest.php
index dda414748f..426725c2a0 100644
--- a/tests/unit/API/APITest.php
+++ b/tests/unit/API/APITest.php
@@ -1,5 +1,5 @@
 <?php
-use \MailPoet\API\API;
+use MailPoet\API\API;
 
 // required to be able to use wp_delete_user()
 require_once(ABSPATH.'wp-admin/includes/user.php');
diff --git a/tests/unit/API/Endpoints/CustomFieldsTest.php b/tests/unit/API/Endpoints/CustomFieldsTest.php
index f0faec7d40..b88d58de42 100644
--- a/tests/unit/API/Endpoints/CustomFieldsTest.php
+++ b/tests/unit/API/Endpoints/CustomFieldsTest.php
@@ -1,8 +1,8 @@
 <?php
 
-use \MailPoet\API\Endpoints\CustomFields;
-use \MailPoet\API\Response as APIResponse;
-use \MailPoet\Models\CustomField;
+use MailPoet\API\Endpoints\CustomFields;
+use MailPoet\API\Response as APIResponse;
+use MailPoet\Models\CustomField;
 
 class CustomFieldsTest extends MailPoetTest {
   private $custom_fields = array(
diff --git a/tests/unit/API/Endpoints/FormsTest.php b/tests/unit/API/Endpoints/FormsTest.php
index 2795d07e5b..596173acfa 100644
--- a/tests/unit/API/Endpoints/FormsTest.php
+++ b/tests/unit/API/Endpoints/FormsTest.php
@@ -1,8 +1,8 @@
 <?php
-use \MailPoet\API\Endpoints\Forms;
-use \MailPoet\API\Response as APIResponse;
-use \MailPoet\Models\Form;
-use \MailPoet\Models\Segment;
+use MailPoet\API\Endpoints\Forms;
+use MailPoet\API\Response as APIResponse;
+use MailPoet\Models\Form;
+use MailPoet\Models\Segment;
 
 class FormsTest extends MailPoetTest {
   function _before() {
diff --git a/tests/unit/API/Endpoints/NewsletterTemplatesTest.php b/tests/unit/API/Endpoints/NewsletterTemplatesTest.php
index 2595b2d639..1af192b6c0 100644
--- a/tests/unit/API/Endpoints/NewsletterTemplatesTest.php
+++ b/tests/unit/API/Endpoints/NewsletterTemplatesTest.php
@@ -1,7 +1,7 @@
 <?php
-use \MailPoet\API\Response as APIResponse;
-use \MailPoet\API\Endpoints\NewsletterTemplates;
-use \MailPoet\Models\NewsletterTemplate;
+use MailPoet\API\Response as APIResponse;
+use MailPoet\API\Endpoints\NewsletterTemplates;
+use MailPoet\Models\NewsletterTemplate;
 
 class NewsletterTemplatesTest extends MailPoetTest {
   function _before() {
diff --git a/tests/unit/API/Endpoints/SegmentsTest.php b/tests/unit/API/Endpoints/SegmentsTest.php
index 6f9c970ec9..9ac4e07def 100644
--- a/tests/unit/API/Endpoints/SegmentsTest.php
+++ b/tests/unit/API/Endpoints/SegmentsTest.php
@@ -1,7 +1,7 @@
 <?php
-use \MailPoet\API\Endpoints\Segments;
-use \MailPoet\API\Response as APIResponse;
-use \MailPoet\Models\Segment;
+use MailPoet\API\Endpoints\Segments;
+use MailPoet\API\Response as APIResponse;
+use MailPoet\Models\Segment;
 
 class SegmentsTest extends MailPoetTest {
   function _before() {
diff --git a/tests/unit/API/Endpoints/SettingsTest.php b/tests/unit/API/Endpoints/SettingsTest.php
index 6bb1bfaa62..1d817f2b96 100644
--- a/tests/unit/API/Endpoints/SettingsTest.php
+++ b/tests/unit/API/Endpoints/SettingsTest.php
@@ -1,8 +1,8 @@
 <?php
-use \MailPoet\API\Response as APIResponse;
-use \MailPoet\API\Error as APIError;
-use \MailPoet\API\Endpoints\Settings;
-use \MailPoet\Models\Setting;
+use MailPoet\API\Response as APIResponse;
+use MailPoet\API\Error as APIError;
+use MailPoet\API\Endpoints\Settings;
+use MailPoet\Models\Setting;
 
 class SettingsTest extends MailPoetTest {
   function _before() {
diff --git a/tests/unit/API/Endpoints/SetupTest.php b/tests/unit/API/Endpoints/SetupTest.php
index 0f4a9e6092..f1c4e24a3b 100644
--- a/tests/unit/API/Endpoints/SetupTest.php
+++ b/tests/unit/API/Endpoints/SetupTest.php
@@ -1,7 +1,7 @@
 <?php
-use \MailPoet\API\Response as APIResponse;
-use \MailPoet\API\Endpoints\Setup;
-use \MailPoet\Models\Setting;
+use MailPoet\API\Response as APIResponse;
+use MailPoet\API\Endpoints\Setup;
+use MailPoet\Models\Setting;
 
 class SetupTest extends MailPoetTest {
   function _before() {
diff --git a/tests/unit/API/Endpoints/SubscribersTest.php b/tests/unit/API/Endpoints/SubscribersTest.php
index 41fe164b78..281a7d46e1 100644
--- a/tests/unit/API/Endpoints/SubscribersTest.php
+++ b/tests/unit/API/Endpoints/SubscribersTest.php
@@ -1,12 +1,12 @@
 <?php
 
 use Codeception\Util\Fixtures;
-use \MailPoet\API\Endpoints\Subscribers;
-use \MailPoet\API\Response as APIResponse;
-use \MailPoet\Models\Form;
-use \MailPoet\Models\Subscriber;
-use \MailPoet\Models\Segment;
-use \MailPoet\Models\Setting;
+use MailPoet\API\Endpoints\Subscribers;
+use MailPoet\API\Response as APIResponse;
+use MailPoet\Models\Form;
+use MailPoet\Models\Subscriber;
+use MailPoet\Models\Segment;
+use MailPoet\Models\Setting;
 
 class SubscribersTest extends MailPoetTest {
   function _before() {
diff --git a/tests/unit/Config/MigratorTest.php b/tests/unit/Config/MigratorTest.php
index 3ee414a5e3..e3aaa91797 100644
--- a/tests/unit/Config/MigratorTest.php
+++ b/tests/unit/Config/MigratorTest.php
@@ -1,5 +1,5 @@
 <?php
-use \MailPoet\Config\Migrator;
+use MailPoet\Config\Migrator;
 
 class MigratorTest extends MailPoetTest {
   function _before() {
diff --git a/tests/unit/Config/RendererTest.php b/tests/unit/Config/RendererTest.php
index 97a9941ce5..e9b83677dd 100644
--- a/tests/unit/Config/RendererTest.php
+++ b/tests/unit/Config/RendererTest.php
@@ -1,6 +1,6 @@
 <?php
 use Codeception\Util\Stub;
-use \MailPoet\Config\Renderer;
+use MailPoet\Config\Renderer;
 
 class RendererTest extends MailPoetTest {
   function _before() {
diff --git a/tests/unit/Form/Block/SelectTest.php b/tests/unit/Form/Block/SelectTest.php
index a425e65e26..f7bfcc6510 100644
--- a/tests/unit/Form/Block/SelectTest.php
+++ b/tests/unit/Form/Block/SelectTest.php
@@ -1,7 +1,7 @@
 <?php
 
 use MailPoet\Form\Block\Select;
-use \MailPoet\Models\Subscriber;
+use MailPoet\Models\Subscriber;
 
 class SelectTest extends MailPoetTest {
   function _before() {
diff --git a/tests/unit/Helpscout/BeaconTest.php b/tests/unit/Helpscout/BeaconTest.php
index 4663856bb7..7e24fceb39 100644
--- a/tests/unit/Helpscout/BeaconTest.php
+++ b/tests/unit/Helpscout/BeaconTest.php
@@ -1,7 +1,7 @@
 <?php
-use \MailPoet\Helpscout\Beacon;
-use \MailPoet\Models\Setting;
-use \MailPoet\Models\Subscriber;
+use MailPoet\Helpscout\Beacon;
+use MailPoet\Models\Setting;
+use MailPoet\Models\Subscriber;
 
 class BeaconTest extends MailPoetTest {
   function _before() {
diff --git a/tests/unit/Settings/CharsetsTest.php b/tests/unit/Settings/CharsetsTest.php
index 8f98db8bc1..c6ba83b5e6 100644
--- a/tests/unit/Settings/CharsetsTest.php
+++ b/tests/unit/Settings/CharsetsTest.php
@@ -1,5 +1,5 @@
 <?php
-use \MailPoet\Settings\Charsets;
+use MailPoet\Settings\Charsets;
 
 class CharsetsTest extends MailPoetTest {
   function testItReturnsAListOfCharsets() {
diff --git a/tests/unit/Settings/HostsTest.php b/tests/unit/Settings/HostsTest.php
index bda3d65f40..0454e30933 100644
--- a/tests/unit/Settings/HostsTest.php
+++ b/tests/unit/Settings/HostsTest.php
@@ -1,5 +1,5 @@
 <?php
-use \MailPoet\Settings\Hosts;
+use MailPoet\Settings\Hosts;
 
 class HostsTest extends MailPoetTest {
   function testItReturnsAListOfWebHosts() {
diff --git a/tests/unit/Subscription/UrlTest.php b/tests/unit/Subscription/UrlTest.php
index 1cdbe444bd..af7e0cd67d 100644
--- a/tests/unit/Subscription/UrlTest.php
+++ b/tests/unit/Subscription/UrlTest.php
@@ -1,9 +1,9 @@
 <?php
 use MailPoet\Router\Router;
-use \MailPoet\Subscription\Url;
-use \MailPoet\Models\Subscriber;
-use \MailPoet\Models\Setting;
-use \MailPoet\Config\Populator;
+use MailPoet\Subscription\Url;
+use MailPoet\Models\Subscriber;
+use MailPoet\Models\Setting;
+use MailPoet\Config\Populator;
 
 class UrlTest extends MailPoetTest {
   function _before() {
diff --git a/tests/unit/Twig/AssetsTest.php b/tests/unit/Twig/AssetsTest.php
index c433ac5119..9a40321e69 100644
--- a/tests/unit/Twig/AssetsTest.php
+++ b/tests/unit/Twig/AssetsTest.php
@@ -1,5 +1,5 @@
 <?php
-use \MailPoet\Twig\Assets;
+use MailPoet\Twig\Assets;
 
 class AssetsTest extends MailPoetTest {
   function _before() {
diff --git a/tests/unit/Util/SecurityTest.php b/tests/unit/Util/SecurityTest.php
index da7ba6fd97..6d80f234c8 100644
--- a/tests/unit/Util/SecurityTest.php
+++ b/tests/unit/Util/SecurityTest.php
@@ -1,5 +1,5 @@
 <?php
-use \MailPoet\Util\Security;
+use MailPoet\Util\Security;
 
 class SecurityTest extends MailPoetTest {
 
diff --git a/tests/unit/Util/UrlTest.php b/tests/unit/Util/UrlTest.php
index 746919dc34..f80614019a 100644
--- a/tests/unit/Util/UrlTest.php
+++ b/tests/unit/Util/UrlTest.php
@@ -1,5 +1,5 @@
 <?php
-use \MailPoet\Util\Url;
+use MailPoet\Util\Url;
 
 class UtilUrlTest extends MailPoetTest {
   function testItCanReturnCurrentUrl() {
diff --git a/tests/unit/WP/DateTimeTest.php b/tests/unit/WP/DateTimeTest.php
index 41878811cd..f247eae870 100644
--- a/tests/unit/WP/DateTimeTest.php
+++ b/tests/unit/WP/DateTimeTest.php
@@ -1,6 +1,6 @@
 <?php
-use \Helper\WordPress as WordPressHelper;
-use \MailPoet\WP\DateTime;
+use Helper\WordPress as WordPressHelper;
+use MailPoet\WP\DateTime;
 
 class DateTimeTest extends MailPoetTest {
   function _before() {
diff --git a/tests/unit/WP/ReadmeTest.php b/tests/unit/WP/ReadmeTest.php
index 752e94b26e..f3b2390b4c 100644
--- a/tests/unit/WP/ReadmeTest.php
+++ b/tests/unit/WP/ReadmeTest.php
@@ -1,5 +1,5 @@
 <?php
-use \MailPoet\WP\Readme;
+use MailPoet\WP\Readme;
 
 class ReadmeTest extends MailPoetTest {
   function _before() {