diff --git a/Caddyfile b/Caddyfile
index 1a18550..9952fa6 100644
--- a/Caddyfile
+++ b/Caddyfile
@@ -1,6 +1,6 @@
 {
 	on_demand_tls {
-		ask http://app:3000/tls-check
+		ask http://{$APP_HOST}:3000/tls-check
 	}
 }
 
@@ -8,5 +8,5 @@
 	tls {
 		on_demand
 	}
-	reverse_proxy app:3000
+	reverse_proxy {$APP_HOST}:3000
 }
diff --git a/abra.sh b/abra.sh
index 8a81819..e1a07c4 100644
--- a/abra.sh
+++ b/abra.sh
@@ -1,2 +1,2 @@
 export ENTRYPOINT_VERSION=v1
-export CADDYFILE_VERSION=v1
+export CADDYFILE_VERSION=v2
diff --git a/compose.yml b/compose.yml
index 22b2891..5a25c22 100644
--- a/compose.yml
+++ b/compose.yml
@@ -52,6 +52,7 @@ services:
       - internal
     environment:
       - DOMAIN=${DOMAIN}
+      - APP_HOST=${STACK_NAME}_app
     configs:
       - source: caddyfile
         target: /etc/caddy/Caddyfile