diff --git a/lib/stages/prepare_build.sh b/lib/stages/prepare_build.sh
index fc602b5..e6860ec 100644
--- a/lib/stages/prepare_build.sh
+++ b/lib/stages/prepare_build.sh
@@ -55,8 +55,9 @@ _stage_prepare_build() {
     jq '.repositories[0].options = {}' "${DRUPAL_TESTING_DRUPAL_INSTALLATION_DIRECTORY}""/composer.json" | awk 'BEGIN{RS="";getline<"-";print>ARGV[1]}' "${DRUPAL_TESTING_DRUPAL_INSTALLATION_DIRECTORY}""/composer.json"
     jq '.repositories[0].options.symlink = false' "${DRUPAL_TESTING_DRUPAL_INSTALLATION_DIRECTORY}""/composer.json" | awk 'BEGIN{RS="";getline<"-";print>ARGV[1]}' "${DRUPAL_TESTING_DRUPAL_INSTALLATION_DIRECTORY}""/composer.json"
 
-    composer config repositories.1 composer https://asset-packagist.org --working-dir="${DRUPAL_TESTING_DRUPAL_INSTALLATION_DIRECTORY}"
-    composer config repositories.2 composer https://packages.drupal.org/8 --working-dir="${DRUPAL_TESTING_DRUPAL_INSTALLATION_DIRECTORY}"
+    composer config repositories.1 composer https://repo.packagist.com/burdaverlag/ --working-dir="${DRUPAL_TESTING_DRUPAL_INSTALLATION_DIRECTORY}"
+    composer config repositories.2 composer https://asset-packagist.org --working-dir="${DRUPAL_TESTING_DRUPAL_INSTALLATION_DIRECTORY}"
+    composer config repositories.3 composer https://packages.drupal.org/8 --working-dir="${DRUPAL_TESTING_DRUPAL_INSTALLATION_DIRECTORY}"
 
     # Enable patching
     composer require cweagans/composer-patches --no-update --working-dir="${DRUPAL_TESTING_DRUPAL_INSTALLATION_DIRECTORY}"