diff --git a/common.php b/common.php
index 941b8f2f..ebe7da70 100644
--- a/common.php
+++ b/common.php
@@ -23,7 +23,7 @@
  * @copyright 2019 MyAAC
  * @link      https://my-aac.org
  */
-if (version_compare(phpversion(), '5.6', '<')) die('PHP version 5.6 or higher is required.');
+if (version_compare(phpversion(), '7.1', '<')) die('PHP version 5.6 or higher is required.');
 session_start();
 
 define('MYAAC', true);
diff --git a/composer.json b/composer.json
index 43f0a68a..e1213841 100644
--- a/composer.json
+++ b/composer.json
@@ -1,6 +1,6 @@
 {
     "require": {
-        "php": ">=5.6",
+        "php": ">=7.1",
         "ext-dom": "*",
         "ext-json": "*",
         "ext-gd": "*",