diff --git a/.env b/.env
index 2741026..4a4fc47 100644
--- a/.env
+++ b/.env
@@ -4,4 +4,6 @@ ALFRESCO_LICENSE_DIR=~/alfresco/license
 PROXY_PROTOCOL=http
 PROXY_HOST=localhost
 PROXY_PORT=8080
-IDENTITY_SERVICE_BASEURL=http://auth.example.org:8080
+IDENTITY_SERVICE_PROTOCOL=http
+IDENTITY_SERVICE_HOST=auth.example.org
+IDENTITY_SERVICE_PORT=8080
diff --git a/docker-compose.yml b/docker-compose.yml
index 797dde8..a63c40d 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,7 +1,7 @@
 # Sourced from https://github.com/Alfresco/acs-deployment/blob/4.0.3/docker-compose/docker-compose.yml
 #
 # Using version 2 as 3 does not support resource constraint options (cpu_*, mem_* limits) for non swarm mode in Compose
-version: "2"
+version: "2.1"
 
 services:
     activiti-app:
@@ -78,13 +78,13 @@ services:
         environment:
             KEYCLOAK_USER: admin
             KEYCLOAK_PASSWORD: admin
-            KEYCLOAK_HOSTNAME: auth.example.org
+            KEYCLOAK_HOSTNAME: ${IDENTITY_SERVICE_HOST}
             KEYCLOAK_IMPORT: /tmp/keycloak-alfresco-realm.json
             KEYCLOAK_STATISTICS: enabled
         networks:
             default:
                 aliases:
-                    - "auth.example.org"
+                    - "${IDENTITY_SERVICE_HOST}"
         healthcheck:
             test: ["CMD", "curl", "-f", "http://localhost:8080/auth"]
             interval: 10s