diff --git a/molecule/default/molecule.yml b/molecule/default/molecule.yml
index 40ac21c..a6218cf 100644
--- a/molecule/default/molecule.yml
+++ b/molecule/default/molecule.yml
@@ -68,7 +68,7 @@ provisioner:
         php_version_to_install: 7.1
         php_debian_pkg_managed: true
         php_debian_pkg_name:
-          - deb https://packages.sury.org/php/ stretch main
+          - deb https://packages.sury.org/php/ buster main
         php_debian_pkg_key: https://packages.sury.org/php/apt.gpg
         php_enable_webserver: false
         php_aws_elasticache: true