diff --git a/swarm/core.yml b/swarm/core.yml
index 4cd1656..2316311 100644
--- a/swarm/core.yml
+++ b/swarm/core.yml
@@ -89,7 +89,7 @@ services:
       # Add Docker as a mounted volume, so that Traefik can read the labels of other services
       - /var/run/docker.sock:/var/run/docker.sock:ro
       # Mount the volume to store the certificates
-      - traefik-public-certificates:/certificates
+      - /var/data/config/acme.json:/certificates/acme.json
       - /var/data/config/traefik/services.yml:/etc/traefik/services.yml:ro
     command:
       # Enable Docker in Traefik, so that it reads labels from Docker services
diff --git a/swarm/mailserver.yml b/swarm/mailserver.yml
index a912c23..b41a599 100644
--- a/swarm/mailserver.yml
+++ b/swarm/mailserver.yml
@@ -6,7 +6,8 @@ services:
       # - /var/data/docker-mailserver/maildata:/var/mail
       # - /var/data/docker-mailserver/mailstate:/var/mail-state
       # - /var/data/docker-mailserver/config:/tmp/docker-mailserver
-      - /var/data/docker-mailserver/letsencrypt:/etc/letsencrypt
+      - traefik-public-certificates:/certificates
+      - /var/data/config/acme.json:/etc/letsencrypt/acme.json:ro
     ports:
       - target: 25
         published: 25