diff --git a/lagoon/nginx.dockerfile b/lagoon/nginx.dockerfile
index b9c3dc4..8374249 100644
--- a/lagoon/nginx.dockerfile
+++ b/lagoon/nginx.dockerfile
@@ -1,5 +1,5 @@
 ARG CLI_IMAGE
-FROM ${CLI_IMAGE} as cli
+FROM ${CLI_IMAGE} AS cli
 
 FROM uselagoon/nginx-drupal:latest
 
diff --git a/lagoon/php.dockerfile b/lagoon/php.dockerfile
index 2b50501..c34ae8f 100644
--- a/lagoon/php.dockerfile
+++ b/lagoon/php.dockerfile
@@ -1,5 +1,5 @@
 ARG CLI_IMAGE
-FROM ${CLI_IMAGE} as cli
+FROM ${CLI_IMAGE} AS cli
 
 FROM uselagoon/php-8.3-fpm:latest