diff --git a/README.md b/README.md
index 5980bdfd7..99d78b556 100644
--- a/README.md
+++ b/README.md
@@ -41,7 +41,7 @@ https://demo.wavelog.org
 ### Recommended: Classic-LAMP-Stack:
 * Linux based Operating System (Windows stack may also work)
 * Apache (Nginx should work)
-* PHP Version 7.4 up to PHP 8.2 (PHP 8.3. in friendly Usertest)
+* PHP Version 8.0 up to PHP 8.2 (PHP 8.3. in friendly Usertest)
 * MySQL or MariaDB (MySQL 5.7 or higher // MariaDB 10.1 or higher)
 
 ### Alternative - Easy start with prebuilt Docker-image:
diff --git a/application/views/dashboard/index.php b/application/views/dashboard/index.php
index 16707fd26..988e964fc 100644
--- a/application/views/dashboard/index.php
+++ b/application/views/dashboard/index.php
@@ -108,7 +108,7 @@ function getDistance($distance) {
 
 	<?php if (version_compare(PHP_VERSION, '7.4.0') <= 0) { ?>
 		<div class="alert alert-danger alert-dismissible fade show" role="alert">
-			<?= __("You need to upgrade your PHP version. Minimum version is 7.4. Your version is") . ' ' . PHP_VERSION . '.';?>
+			<?= __("You need to upgrade your PHP version. Minimum version is 8.0. Your version is") . ' ' . PHP_VERSION . '.';?>
 			<button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
 		</div>
 	<?php } ?>
diff --git a/install/includes/install_config/install_config.php b/install/includes/install_config/install_config.php
index 9ae31e097..9eeee61e1 100644
--- a/install/includes/install_config/install_config.php
+++ b/install/includes/install_config/install_config.php
@@ -18,7 +18,7 @@ $logfile = '../application/logs/installer_debug.log';
 
 // Wanted Pre-Check Parameters
 // PHP
-$min_php_version = '7.4.0';  		// below this version is no install possible
+$min_php_version = '8.0.0';  		// below this version is no install possible
 $min_php_version_warning = '8.0.0'; // below this version some features may not available (e.g. Cronmanager)
 $max_execution_time = 600;		// Seconds
 $upload_max_filesize = 8;  		// Megabyte