diff --git a/core/tests/Drupal/Tests/ComposerIntegrationTest.php b/core/tests/Drupal/Tests/ComposerIntegrationTest.php
index 2d34dcb74c..59ff791295 100644
--- a/core/tests/Drupal/Tests/ComposerIntegrationTest.php
+++ b/core/tests/Drupal/Tests/ComposerIntegrationTest.php
@@ -18,7 +18,7 @@ class ComposerIntegrationTest extends UnitTestCase {
    *
    * @todo Remove as part of https://www.drupal.org/node/2908079
    */
-  const MIN_PHP_VERSION = '5.5.9';
+  const MIN_PHP_VERSION = '7.1.3';
 
   /**
    * Gets human-readable JSON error messages.