diff --git a/inventory/group_vars/engine_servers/vars.yml b/inventory/group_vars/engine_servers/vars.yml
index 08bae89..10828b5 100644
--- a/inventory/group_vars/engine_servers/vars.yml
+++ b/inventory/group_vars/engine_servers/vars.yml
@@ -1,8 +1,8 @@
 ---
 app_name: "engine"
 project_name: "pyro-engine"
-pyro_engine_git_ref: "v1.0.12"
-pyro_engine_docker_tag: "1.0.12"
+engine_git_ref: "v1.0.12"
+engine_docker_version: "1.0.12"
 
 ansible_user: pi