diff --git a/manuscript/ha-docker-swarm/traefik.md b/manuscript/ha-docker-swarm/traefik.md
index 6c6810a..a553faa 100644
--- a/manuscript/ha-docker-swarm/traefik.md
+++ b/manuscript/ha-docker-swarm/traefik.md
@@ -110,7 +110,7 @@ networks:
 Create `/var/data/config/traefik/traefik-app.yml` as follows:
 
 ```
-version: "3"
+version: "3.2"
 
 services:
   traefik: