diff --git a/core/includes/install.inc b/core/includes/install.inc
index 7b52cd3..d2b4705 100644
--- a/core/includes/install.inc
+++ b/core/includes/install.inc
@@ -1054,6 +1054,7 @@ function install_profile_info($profile, $langcode = 'en') {
       'version' => NULL,
       'hidden' => FALSE,
       'php' => DRUPAL_MINIMUM_PHP,
+      'php_memory_limit' => DRUPAL_MINIMUM_PHP_MEMORY_LIMIT,
     );
     $profile_file = drupal_get_path('profile', $profile) . "/$profile.info.yml";
     $info = \Drupal::service('info_parser')->parse($profile_file);
diff --git a/core/modules/system/system.install b/core/modules/system/system.install
index de65bb1..ea432fd 100644
--- a/core/modules/system/system.install
+++ b/core/modules/system/system.install
@@ -47,6 +47,16 @@ function system_requirements($phase) {
     }
   }
 
+  if (isset($GLOBALS['install_state']['profile_info'])) {
+    $profile_info = $GLOBALS['install_state']['profile_info'];
+  }
+  else {
+    if (!isset($profile)) {
+      $profile = drupal_get_profile();
+    }
+    $profile_info = install_profile_info($profile);
+  }
+
   // Web server information.
   $software = \Drupal::request()->server->get('SERVER_SOFTWARE');
   $requirements['webserver'] = array(
@@ -72,8 +82,8 @@ function system_requirements($phase) {
     );
   }
 
-  if (version_compare($phpversion, DRUPAL_MINIMUM_PHP) < 0) {
-    $requirements['php']['description'] = t('Your PHP installation is too old. Drupal requires at least PHP %version.', array('%version' => DRUPAL_MINIMUM_PHP));
+  if (version_compare($phpversion, $profile_info['php']) < 0) {
+    $requirements['php']['description'] = $t('Your PHP installation is too old. Drupal requires at least PHP %version.', array('%version' => $profile_info['php']));
     $requirements['php']['severity'] = REQUIREMENT_ERROR;
     // If PHP is old, it's not safe to continue with the requirements check.
     return $requirements;
@@ -198,13 +208,13 @@ function system_requirements($phase) {
   if (!Environment::checkMemoryLimit(DRUPAL_MINIMUM_PHP_MEMORY_LIMIT, $memory_limit)) {
     $description = array();
     if ($phase == 'install') {
-      $description['phase'] = t('Consider increasing your PHP memory limit to %memory_minimum_limit to help prevent errors in the installation process.', array('%memory_minimum_limit' => DRUPAL_MINIMUM_PHP_MEMORY_LIMIT));
+      $description['phase'] = t('Consider increasing your PHP memory limit to %memory_minimum_limit to help prevent errors in the installation process.', array('%memory_minimum_limit' => $profile_info['php_memory_limit']));
     }
     elseif ($phase == 'update') {
-      $description['phase'] = t('Consider increasing your PHP memory limit to %memory_minimum_limit to help prevent errors in the update process.', array('%memory_minimum_limit' => DRUPAL_MINIMUM_PHP_MEMORY_LIMIT));
+      $description['phase'] = t('Consider increasing your PHP memory limit to %memory_minimum_limit to help prevent errors in the update process.', array('%memory_minimum_limit' => $profile_info['php_memory_limit']));
     }
     elseif ($phase == 'runtime') {
-      $description['phase'] = t('Depending on your configuration, Drupal can run with a %memory_limit PHP memory limit. However, a %memory_minimum_limit PHP memory limit or above is recommended, especially if your site uses additional custom or contributed modules.', array('%memory_limit' => $memory_limit, '%memory_minimum_limit' => DRUPAL_MINIMUM_PHP_MEMORY_LIMIT));
+      $description['phase'] = t('Depending on your configuration, Drupal can run with a %memory_limit PHP memory limit. However, a %memory_minimum_limit PHP memory limit or above is recommended, especially if your site uses additional custom or contributed modules.', array('%memory_limit' => $memory_limit, '%memory_minimum_limit' => $profile_info['php_memory_limit']));
     }
 
     if (!empty($description['phase'])) {