diff --git a/drupal_test.sh b/drupal_test.sh
index 0374593c209..54edb9e9806 100755
--- a/drupal_test.sh
+++ b/drupal_test.sh
@@ -10,6 +10,7 @@ composer create-project --no-interaction drupal-composer/drupal-project:8.x-dev
 cd drupal-twig-test
 (cd vendor/twig && rm -rf twig && ln -sf $REPO twig)
 echo '$config["system.logging"]["error_level"] = "verbose";' >> web/sites/default/settings.php
+composer require drupal/core:8.7.x-dev webflo/drupal-core-require-dev:8.7.x-dev
 php ./web/core/scripts/drupal install --no-interaction demo_umami > output
 perl -p -i -e 's/^([A-Za-z]+)\: (.+)$/export DRUPAL_\1=\2/' output
 source output