diff --git a/Admin/Install/Navigation.php b/Admin/Install/Navigation.php
index 6493b41..a01a45b 100755
--- a/Admin/Install/Navigation.php
+++ b/Admin/Install/Navigation.php
@@ -2,7 +2,7 @@
 /**
  * Orange Management
  *
- * PHP Version 7.4
+ * PHP Version 8.0
  *
  * @package   Modules\ProjectManagement\Admin\Install
  * @copyright Dennis Eichhorn
diff --git a/Admin/Installer.php b/Admin/Installer.php
index 4d91e37..fbf32bf 100755
--- a/Admin/Installer.php
+++ b/Admin/Installer.php
@@ -2,7 +2,7 @@
 /**
  * Orange Management
  *
- * PHP Version 7.4
+ * PHP Version 8.0
  *
  * @package   Modules\ProjectManagement\Admin
  * @copyright Dennis Eichhorn
diff --git a/Admin/Status.php b/Admin/Status.php
index 7057b6d..6a54383 100755
--- a/Admin/Status.php
+++ b/Admin/Status.php
@@ -2,7 +2,7 @@
 /**
  * Orange Management
  *
- * PHP Version 7.4
+ * PHP Version 8.0
  *
  * @package   Modules\ProjectManagement\Admin
  * @copyright Dennis Eichhorn
diff --git a/Admin/Uninstaller.php b/Admin/Uninstaller.php
index 6deaaf4..0a46d5c 100755
--- a/Admin/Uninstaller.php
+++ b/Admin/Uninstaller.php
@@ -2,7 +2,7 @@
 /**
  * Orange Management
  *
- * PHP Version 7.4
+ * PHP Version 8.0
  *
  * @package   Modules\ProjectManagement\Admin
  * @copyright Dennis Eichhorn
diff --git a/Admin/Updater.php b/Admin/Updater.php
index 2b6e7d7..8e4ee14 100755
--- a/Admin/Updater.php
+++ b/Admin/Updater.php
@@ -2,7 +2,7 @@
 /**
  * Orange Management
  *
- * PHP Version 7.4
+ * PHP Version 8.0
  *
  * @package   Modules\ProjectManagement\Admin
  * @copyright Dennis Eichhorn
diff --git a/Controller/BackendController.php b/Controller/BackendController.php
index 3bcb2d1..718cdb0 100755
--- a/Controller/BackendController.php
+++ b/Controller/BackendController.php
@@ -2,7 +2,7 @@
 /**
  * Orange Management
  *
- * PHP Version 7.4
+ * PHP Version 8.0
  *
  * @package   Modules\ProjectManagement
  * @copyright Dennis Eichhorn
diff --git a/Controller/Controller.php b/Controller/Controller.php
index 6f16d73..e5be43d 100755
--- a/Controller/Controller.php
+++ b/Controller/Controller.php
@@ -2,7 +2,7 @@
 /**
  * Orange Management
  *
- * PHP Version 7.4
+ * PHP Version 8.0
  *
  * @package   Modules\ProjectManagement
  * @copyright Dennis Eichhorn
diff --git a/Models/NullProject.php b/Models/NullProject.php
index ac7c8dd..d534c69 100755
--- a/Models/NullProject.php
+++ b/Models/NullProject.php
@@ -2,7 +2,7 @@
 /**
  * Orange Management
  *
- * PHP Version 7.4
+ * PHP Version 8.0
  *
  * @package   Modules\ProjectManagement\Models
  * @copyright Dennis Eichhorn
diff --git a/Models/PermissionState.php b/Models/PermissionState.php
index c875be1..c1761b0 100755
--- a/Models/PermissionState.php
+++ b/Models/PermissionState.php
@@ -2,7 +2,7 @@
 /**
  * Orange Management
  *
- * PHP Version 7.4
+ * PHP Version 8.0
  *
  * @package   Modules\ProjectManagement\Models
  * @copyright Dennis Eichhorn
diff --git a/Models/ProgressType.php b/Models/ProgressType.php
index 1b0ecb0..8ef617d 100755
--- a/Models/ProgressType.php
+++ b/Models/ProgressType.php
@@ -2,7 +2,7 @@
 /**
  * Orange Management
  *
- * PHP Version 7.4
+ * PHP Version 8.0
  *
  * @package   Modules\ProjectManagement\Models
  * @copyright Dennis Eichhorn
diff --git a/Models/Project.php b/Models/Project.php
index 5a4963c..62cef7e 100755
--- a/Models/Project.php
+++ b/Models/Project.php
@@ -2,7 +2,7 @@
 /**
  * Orange Management
  *
- * PHP Version 7.4
+ * PHP Version 8.0
  *
  * @package   Modules\ProjectManagement\Models
  * @copyright Dennis Eichhorn
diff --git a/Models/ProjectMapper.php b/Models/ProjectMapper.php
index c01f04e..96c7dfd 100755
--- a/Models/ProjectMapper.php
+++ b/Models/ProjectMapper.php
@@ -2,7 +2,7 @@
 /**
  * Orange Management
  *
- * PHP Version 7.4
+ * PHP Version 8.0
  *
  * @package   Modules\ProjectManagement\Models
  * @copyright Dennis Eichhorn
diff --git a/Models/ProjectResponsibility.php b/Models/ProjectResponsibility.php
index 711e07b..86c42c4 100755
--- a/Models/ProjectResponsibility.php
+++ b/Models/ProjectResponsibility.php
@@ -2,7 +2,7 @@
 /**
  * Orange Management
  *
- * PHP Version 7.4
+ * PHP Version 8.0
  *
  * @package   Modules\ProjectManagement\Models
  * @copyright Dennis Eichhorn
diff --git a/Models/ProjectStatus.php b/Models/ProjectStatus.php
index 9015db0..efafd0b 100755
--- a/Models/ProjectStatus.php
+++ b/Models/ProjectStatus.php
@@ -2,7 +2,7 @@
 /**
  * Orange Management
  *
- * PHP Version 7.4
+ * PHP Version 8.0
  *
  * @package   Modules\ProjectManagement\Models
  * @copyright Dennis Eichhorn
diff --git a/Theme/Backend/Lang/Navigation.en.lang.php b/Theme/Backend/Lang/Navigation.en.lang.php
index 364233d..8955bff 100755
--- a/Theme/Backend/Lang/Navigation.en.lang.php
+++ b/Theme/Backend/Lang/Navigation.en.lang.php
@@ -2,7 +2,7 @@
 /**
  * Orange Management
  *
- * PHP Version 7.4
+ * PHP Version 8.0
  *
  * @package   Modules\ProjectManagement
  * @copyright Dennis Eichhorn
diff --git a/Theme/Backend/Lang/api.en.lang.php b/Theme/Backend/Lang/api.en.lang.php
index 1652678..0dd9e5b 100755
--- a/Theme/Backend/Lang/api.en.lang.php
+++ b/Theme/Backend/Lang/api.en.lang.php
@@ -2,7 +2,7 @@
 /**
  * Orange Management
  *
- * PHP Version 7.4
+ * PHP Version 8.0
  *
  * @package   Modules\ProjectManagement
  * @copyright Dennis Eichhorn
diff --git a/Theme/Backend/Lang/en.lang.php b/Theme/Backend/Lang/en.lang.php
index 4e9877e..b6919e8 100755
--- a/Theme/Backend/Lang/en.lang.php
+++ b/Theme/Backend/Lang/en.lang.php
@@ -2,7 +2,7 @@
 /**
  * Orange Management
  *
- * PHP Version 7.4
+ * PHP Version 8.0
  *
  * @package   Modules\ProjectManagement
  * @copyright Dennis Eichhorn
diff --git a/Theme/Backend/projectmanagement-create.tpl.php b/Theme/Backend/projectmanagement-create.tpl.php
index 407f83c..604937c 100755
--- a/Theme/Backend/projectmanagement-create.tpl.php
+++ b/Theme/Backend/projectmanagement-create.tpl.php
@@ -2,7 +2,7 @@
 /**
  * Orange Management
  *
- * PHP Version 7.4
+ * PHP Version 8.0
  *
  * @package   Modules\ProjectManagement
  * @copyright Dennis Eichhorn
diff --git a/Theme/Backend/projectmanagement-list.tpl.php b/Theme/Backend/projectmanagement-list.tpl.php
index 3a46526..6dfe635 100755
--- a/Theme/Backend/projectmanagement-list.tpl.php
+++ b/Theme/Backend/projectmanagement-list.tpl.php
@@ -2,7 +2,7 @@
 /**
  * Orange Management
  *
- * PHP Version 7.4
+ * PHP Version 8.0
  *
  * @package   Modules\ProjectManagement
  * @copyright Dennis Eichhorn
diff --git a/Theme/Backend/projectmanagement-profile.tpl.php b/Theme/Backend/projectmanagement-profile.tpl.php
index f675894..0782a9b 100755
--- a/Theme/Backend/projectmanagement-profile.tpl.php
+++ b/Theme/Backend/projectmanagement-profile.tpl.php
@@ -2,7 +2,7 @@
 /**
  * Orange Management
  *
- * PHP Version 7.4
+ * PHP Version 8.0
  *
  * @package   Modules\ProjectManagement
  * @copyright Dennis Eichhorn
diff --git a/tests/Admin/AdminTest.php b/tests/Admin/AdminTest.php
index e4e4689..c282312 100755
--- a/tests/Admin/AdminTest.php
+++ b/tests/Admin/AdminTest.php
@@ -2,7 +2,7 @@
 /**
  * Orange Management
  *
- * PHP Version 7.4
+ * PHP Version 8.0
  *
  * @package   tests
  * @copyright Dennis Eichhorn
diff --git a/tests/Models/ProjectMapperTest.php b/tests/Models/ProjectMapperTest.php
index 80cccb1..2d8805c 100755
--- a/tests/Models/ProjectMapperTest.php
+++ b/tests/Models/ProjectMapperTest.php
@@ -2,7 +2,7 @@
 /**
  * Orange Management
  *
- * PHP Version 7.4
+ * PHP Version 8.0
  *
  * @package   tests
  * @copyright Dennis Eichhorn
diff --git a/tests/Models/ProjectTest.php b/tests/Models/ProjectTest.php
index 836580d..9de91c3 100755
--- a/tests/Models/ProjectTest.php
+++ b/tests/Models/ProjectTest.php
@@ -2,7 +2,7 @@
 /**
  * Orange Management
  *
- * PHP Version 7.4
+ * PHP Version 8.0
  *
  * @package   tests
  * @copyright Dennis Eichhorn